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25% off
MG811 Carbon Dioxide Sensor Module CO2 Gas Concentration Detection Analog Signal TTL Level Temperature Compensation Output MG811 Carbon Dioxide Sensor Module CO2 Gas Concentration Detection Analog Signal TTL Level Temperature Compensation Output

MG811 Carbon Dioxide Sensor Module CO2 Gas Concentration Detection Analog Signal TTL Level Temperature Compensation Output

$14.45$19.27

31% off
8 Channel Optocoupler Isolation Module Signal Voltage Converter PNP NPN Low High Level Output AC 110V 220V DC 3.3V 5V 12V 24V 8 Channel Optocoupler Isolation Module Signal Voltage Converter PNP NPN Low High Level Output AC 110V 220V DC 3.3V 5V 12V 24V

8 Channel Optocoupler Isolation Module Signal Voltage Converter PNP NPN Low High Level Output AC 110V 220V DC 3.3V 5V 12V 24V

$3.66$5.30

25 sold
9% off
10pcs/1pc Isolated TTL to RS485 Level Board Module Serial Automatic Reverse High Speed 2Mbps Half-duplex Communication Isolation 10pcs/1pc Isolated TTL to RS485 Level Board Module Serial Automatic Reverse High Speed 2Mbps Half-duplex Communication Isolation

10pcs/1pc Isolated TTL to RS485 Level Board Module Serial Automatic Reverse High Speed 2Mbps Half-duplex Communication Isolation

$2.90$3.19

29 sold
5V 12V 1 2 4 6 8 channel relay module with optocoupler. Relay Output 1 2 4 6 8 way relay module for arduino In stock 5V 12V 1 2 4 6 8 channel relay module with optocoupler. Relay Output 1 2 4 6 8 way relay module for arduino In stock

5V 12V 1 2 4 6 8 channel relay module with optocoupler. Relay Output 1 2 4 6 8 way relay module for arduino In stock

$1.40$1.40

41 sold
50pcs/lot 1 Channel 5V Relay Module Low level for SCM Household Appliance Control 50pcs/lot 1 Channel 5V Relay Module Low level for SCM Household Appliance Control

50pcs/lot 1 Channel 5V Relay Module Low level for SCM Household Appliance Control

$219.93$219.93

49% off
1PCS Relay Module 5V 12V 24V 1 2 4 8 Channel Relay Modules Board with Optocoupler Support High and Low Level Trigger for Arduino 1PCS Relay Module 5V 12V 24V 1 2 4 8 Channel Relay Modules Board with Optocoupler Support High and Low Level Trigger for Arduino

1PCS Relay Module 5V 12V 24V 1 2 4 8 Channel Relay Modules Board with Optocoupler Support High and Low Level Trigger for Arduino

$23.92$47.83

308 sold
25% off
Infrared Liquid Water Level Sensor Level Sensor Monitoring Switch Inspection Detection Module DC 5V Precision IR Controller Infrared Liquid Water Level Sensor Level Sensor Monitoring Switch Inspection Detection Module DC 5V Precision IR Controller

Infrared Liquid Water Level Sensor Level Sensor Monitoring Switch Inspection Detection Module DC 5V Precision IR Controller

$9.82$13.10

8 sold
5% off
DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

$44.74$47.10

For 6E2 EM84 USB Low Voltage Tube Driver Board VU Meter Level Indicator For 6E2 EM84 USB Low Voltage Tube Driver Board VU Meter Level Indicator

For 6E2 EM84 USB Low Voltage Tube Driver Board VU Meter Level Indicator

$185.00$185.00

51% off
G3MB-202P SSR Solid State Relay Module 1/2/4/6/8 Channel High Low Level Trigger 240V 2A 5/12/24V For Arduino G3MB-202P SSR Solid State Relay Module 1/2/4/6/8 Channel High Low Level Trigger 240V 2A 5/12/24V For Arduino

G3MB-202P SSR Solid State Relay Module 1/2/4/6/8 Channel High Low Level Trigger 240V 2A 5/12/24V For Arduino

$23.73$48.93

6% off
XKC-C382 Intelligent High And Low Automatic Water Supply Level Controller Water Replenishment Level Pumping Drainage Switch XKC-C382 Intelligent High And Low Automatic Water Supply Level Controller Water Replenishment Level Pumping Drainage Switch

XKC-C382 Intelligent High And Low Automatic Water Supply Level Controller Water Replenishment Level Pumping Drainage Switch

$26.81$28.56

13 sold
5% off
1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY 1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY

1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY

$1.75$1.85

1059 sold
50% off
5PCS Active Buzzer Low Level Modules 3.3V-5V Buzzer Alarm Beeper Module 3 Pin Buzzer Alarm Module Electronic Component 5PCS Active Buzzer Low Level Modules 3.3V-5V Buzzer Alarm Beeper Module 3 Pin Buzzer Alarm Module Electronic Component

5PCS Active Buzzer Low Level Modules 3.3V-5V Buzzer Alarm Beeper Module 3 Pin Buzzer Alarm Module Electronic Component

$33.44$66.89

1 sold
25% off
1Pc-10pcs XGZP040 Water Pressure Sensor Module 0-40KPA Water Pressure Level Liquid Quid Level/Water Depth Measurement M04 M03 1Pc-10pcs XGZP040 Water Pressure Sensor Module 0-40KPA Water Pressure Level Liquid Quid Level/Water Depth Measurement M04 M03

1Pc-10pcs XGZP040 Water Pressure Sensor Module 0-40KPA Water Pressure Level Liquid Quid Level/Water Depth Measurement M04 M03

$0.45$0.60

50% off
DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

$20.70$41.41

29 sold
33% off
Stainless steel float level switch, water level detector, low water level alarm, full water level alarm, overflow and leakage se Stainless steel float level switch, water level detector, low water level alarm, full water level alarm, overflow and leakage se

Stainless steel float level switch, water level detector, low water level alarm, full water level alarm, overflow and leakage se

$106.12$158.55

5% off
LILYGO® T5S3 Pro 4.7-inch E-Paper Display ESP32-S3 LoRa Wireless Module 16 Gray Levels Ultra-Low Power E-paper Development Board LILYGO® T5S3 Pro 4.7-inch E-Paper Display ESP32-S3 LoRa Wireless Module 16 Gray Levels Ultra-Low Power E-paper Development Board

LILYGO® T5S3 Pro 4.7-inch E-Paper Display ESP32-S3 LoRa Wireless Module 16 Gray Levels Ultra-Low Power E-paper Development Board

$1249.38$1315.14

Liquid level sensor contact photoelectric power consumption low sensitivity high liquid level detection in stock

Liquid level sensor contact photoelectric power consumption low sensitivity high liquid level detection in stock

$122.00$122.00

8% off
High Voltage High Power MOSFET Module PWM Regulation Electronic Switch Control Board High and Low Level Optocoupler Isolation High Voltage High Power MOSFET Module PWM Regulation Electronic Switch Control Board High and Low Level Optocoupler Isolation

High Voltage High Power MOSFET Module PWM Regulation Electronic Switch Control Board High and Low Level Optocoupler Isolation

$42.61$46.32

8% off
GEOX 150S 157S Low Water Cut Off Switch Timed Cut-off Boiler Water Level Controller Spare Parts GEOX 150S 157S Low Water Cut Off Switch Timed Cut-off Boiler Water Level Controller Spare Parts

GEOX 150S 157S Low Water Cut Off Switch Timed Cut-off Boiler Water Level Controller Spare Parts

$920.00$1000.00

8% off
DC 5V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger DC 5V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger

DC 5V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger

$23.00$25.00

31% off
Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino

Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino

$54.80$79.42

1 sold
50% off
* Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection * Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

* Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

$35.09$70.18

25% off
10Pcs/1pc Non-contact Liquid Level M03 M04 Water Level Detection Module Sensor Touch Switch Liquid Sensor 3-4.5mm for Arduino 10Pcs/1pc Non-contact Liquid Level M03 M04 Water Level Detection Module Sensor Touch Switch Liquid Sensor 3-4.5mm for Arduino

10Pcs/1pc Non-contact Liquid Level M03 M04 Water Level Detection Module Sensor Touch Switch Liquid Sensor 3-4.5mm for Arduino

$0.45$0.60

8 sold
Non contact liquid level detector metal non-metal ultrasonic liquid level controller high and low liquid level monitoring switch

Non contact liquid level detector metal non-metal ultrasonic liquid level controller high and low liquid level monitoring switch

$42.98$42.98

69% off
1 Channel 5V / 12V Relay Module Board Shield With Optocoupler Support High And Low Level Trigger For Arduino 1 Channel 5V / 12V Relay Module Board Shield With Optocoupler Support High And Low Level Trigger For Arduino

1 Channel 5V / 12V Relay Module Board Shield With Optocoupler Support High And Low Level Trigger For Arduino

$19.07$63.44

113 sold
5% off
Electronic building block active buzzer module/low-level trigger/buzzer control board

Electronic building block active buzzer module/low-level trigger/buzzer control board

$14.25$15.00

5% off
MAX30102 Heart rate Sensor Module Puls detection Blood oxygen concentration test For Arduino STM32 Ultra-Low Power MAX30102 Heart rate Sensor Module Puls detection Blood oxygen concentration test For Arduino STM32 Ultra-Low Power

MAX30102 Heart rate Sensor Module Puls detection Blood oxygen concentration test For Arduino STM32 Ultra-Low Power

$3.15$3.32

777 sold
40% off
Low-temperature vacuum frying equipment for detecting oil and sauce CIP cleaning, high-temperature level switch sensor Low-temperature vacuum frying equipment for detecting oil and sauce CIP cleaning, high-temperature level switch sensor

Low-temperature vacuum frying equipment for detecting oil and sauce CIP cleaning, high-temperature level switch sensor

$1500.00$2500.00

33% off
10-100PCS/Lot IS0103 Laser Receiver Tube-to-Tube (Non-Modem) Normal High/Low Level IS0103/IS0203 Optional 10-100PCS/Lot IS0103 Laser Receiver Tube-to-Tube (Non-Modem) Normal High/Low Level IS0103/IS0203 Optional

10-100PCS/Lot IS0103 Laser Receiver Tube-to-Tube (Non-Modem) Normal High/Low Level IS0103/IS0203 Optional

$3.89$5.80

11 sold
51% off
Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

$33.01$67.36

9 sold
5/10PCS TLP281 4-Channel Opto-isolator IC Module For Arduino Expansion Board High And Low Level Optocoupler Isolation 4 Channel 5/10PCS TLP281 4-Channel Opto-isolator IC Module For Arduino Expansion Board High And Low Level Optocoupler Isolation 4 Channel

5/10PCS TLP281 4-Channel Opto-isolator IC Module For Arduino Expansion Board High And Low Level Optocoupler Isolation 4 Channel

$4.41$4.41

4 sold
50% off
1PCS 5V Low Level Relay Module 1 2 4 8 Channel Solid State Relay Modules 240V 2A with Resistive Fuse for Arduino 1PCS 5V Low Level Relay Module 1 2 4 8 Channel Solid State Relay Modules 240V 2A with Resistive Fuse for Arduino

1PCS 5V Low Level Relay Module 1 2 4 8 Channel Solid State Relay Modules 240V 2A with Resistive Fuse for Arduino

$33.36$66.73

25% off
DC 3.5V-12V KA2284 Power Audio Voltage Level Indicator Battery Capacity Indicator Red Green LED For Voltmeter Volume VU Meter DC 3.5V-12V KA2284 Power Audio Voltage Level Indicator Battery Capacity Indicator Red Green LED For Voltmeter Volume VU Meter

DC 3.5V-12V KA2284 Power Audio Voltage Level Indicator Battery Capacity Indicator Red Green LED For Voltmeter Volume VU Meter

$0.82$1.10

2 sold
Free Ship 1PCS New 1-Channel Low-Level Trigger Solid State Relay Module DC-DC Load 5A Switch Control Panel Module 5V Free Ship 1PCS New 1-Channel Low-Level Trigger Solid State Relay Module DC-DC Load 5A Switch Control Panel Module 5V

Free Ship 1PCS New 1-Channel Low-Level Trigger Solid State Relay Module DC-DC Load 5A Switch Control Panel Module 5V

$4.68$4.68

52% off
2-in-1 Automatic Drain Controller, 12V DC Liquid Level Sensor Relay Module, Suitable for Motors, Fish Tanks and Water Tanks Etc. 2-in-1 Automatic Drain Controller, 12V DC Liquid Level Sensor Relay Module, Suitable for Motors, Fish Tanks and Water Tanks Etc.

2-in-1 Automatic Drain Controller, 12V DC Liquid Level Sensor Relay Module, Suitable for Motors, Fish Tanks and Water Tanks Etc.

$31.51$65.65

2 sold
25% off
MG811 Carbon Dioxide Sensor Module CO2 Gas Concentration Detection Analog Signal TTL Level Temperature Compensation Output MG811 Carbon Dioxide Sensor Module CO2 Gas Concentration Detection Analog Signal TTL Level Temperature Compensation Output

MG811 Carbon Dioxide Sensor Module CO2 Gas Concentration Detection Analog Signal TTL Level Temperature Compensation Output

$14.45 $19.27

Categories: Electronic Components & Supplies, Active Components

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31% off
8 Channel Optocoupler Isolation Module Signal Voltage Converter PNP NPN Low High Level Output AC 110V 220V DC 3.3V 5V 12V 24V 8 Channel Optocoupler Isolation Module Signal Voltage Converter PNP NPN Low High Level Output AC 110V 220V DC 3.3V 5V 12V 24V

8 Channel Optocoupler Isolation Module Signal Voltage Converter PNP NPN Low High Level Output AC 110V 220V DC 3.3V 5V 12V 24V

$3.66 $5.30

25 sold

Categories: Electronic Components & Supplies, Active Components

Buy Now
9% off
10pcs/1pc Isolated TTL to RS485 Level Board Module Serial Automatic Reverse High Speed 2Mbps Half-duplex Communication Isolation 10pcs/1pc Isolated TTL to RS485 Level Board Module Serial Automatic Reverse High Speed 2Mbps Half-duplex Communication Isolation

10pcs/1pc Isolated TTL to RS485 Level Board Module Serial Automatic Reverse High Speed 2Mbps Half-duplex Communication Isolation

$2.90 $3.19

29 sold

Categories: Electronic Components & Supplies, Active Components

Buy Now
5V 12V 1 2 4 6 8 channel relay module with optocoupler. Relay Output 1 2 4 6 8 way relay module for arduino In stock 5V 12V 1 2 4 6 8 channel relay module with optocoupler. Relay Output 1 2 4 6 8 way relay module for arduino In stock

5V 12V 1 2 4 6 8 channel relay module with optocoupler. Relay Output 1 2 4 6 8 way relay module for arduino In stock

$1.40 $1.40

41 sold

Categories: Electronic Components & Supplies, Active Components

Buy Now
50pcs/lot 1 Channel 5V Relay Module Low level for SCM Household Appliance Control 50pcs/lot 1 Channel 5V Relay Module Low level for SCM Household Appliance Control

50pcs/lot 1 Channel 5V Relay Module Low level for SCM Household Appliance Control

$219.93 $219.93

Categories: Electronic Components & Supplies, Active Components

Buy Now
49% off
1PCS Relay Module 5V 12V 24V 1 2 4 8 Channel Relay Modules Board with Optocoupler Support High and Low Level Trigger for Arduino 1PCS Relay Module 5V 12V 24V 1 2 4 8 Channel Relay Modules Board with Optocoupler Support High and Low Level Trigger for Arduino

1PCS Relay Module 5V 12V 24V 1 2 4 8 Channel Relay Modules Board with Optocoupler Support High and Low Level Trigger for Arduino

$23.92 $47.83

308 sold

Categories: Electronic Components & Supplies, Active Components

Buy Now
25% off
Infrared Liquid Water Level Sensor Level Sensor Monitoring Switch Inspection Detection Module DC 5V Precision IR Controller Infrared Liquid Water Level Sensor Level Sensor Monitoring Switch Inspection Detection Module DC 5V Precision IR Controller

Infrared Liquid Water Level Sensor Level Sensor Monitoring Switch Inspection Detection Module DC 5V Precision IR Controller

$9.82 $13.10

8 sold

Categories: Electronic Components & Supplies, Active Components

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5% off
DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

$44.74 $47.10

Categories: Electronic Components & Supplies, Active Components

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For 6E2 EM84 USB Low Voltage Tube Driver Board VU Meter Level Indicator For 6E2 EM84 USB Low Voltage Tube Driver Board VU Meter Level Indicator

For 6E2 EM84 USB Low Voltage Tube Driver Board VU Meter Level Indicator

$185.00 $185.00

Categories: Electronic Components & Supplies, Active Components

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51% off
G3MB-202P SSR Solid State Relay Module 1/2/4/6/8 Channel High Low Level Trigger 240V 2A 5/12/24V For Arduino G3MB-202P SSR Solid State Relay Module 1/2/4/6/8 Channel High Low Level Trigger 240V 2A 5/12/24V For Arduino

G3MB-202P SSR Solid State Relay Module 1/2/4/6/8 Channel High Low Level Trigger 240V 2A 5/12/24V For Arduino

$23.73 $48.93

Categories: Electronic Components & Supplies, Active Components

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6% off
XKC-C382 Intelligent High And Low Automatic Water Supply Level Controller Water Replenishment Level Pumping Drainage Switch XKC-C382 Intelligent High And Low Automatic Water Supply Level Controller Water Replenishment Level Pumping Drainage Switch

XKC-C382 Intelligent High And Low Automatic Water Supply Level Controller Water Replenishment Level Pumping Drainage Switch

$26.81 $28.56

13 sold

Categories: Electronic Components & Supplies, Active Components

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5% off
1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY 1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY

1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino Electronic DIY

$1.75 $1.85

1059 sold

Categories: Electronic Components & Supplies, Active Components

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50% off
5PCS Active Buzzer Low Level Modules 3.3V-5V Buzzer Alarm Beeper Module 3 Pin Buzzer Alarm Module Electronic Component 5PCS Active Buzzer Low Level Modules 3.3V-5V Buzzer Alarm Beeper Module 3 Pin Buzzer Alarm Module Electronic Component

5PCS Active Buzzer Low Level Modules 3.3V-5V Buzzer Alarm Beeper Module 3 Pin Buzzer Alarm Module Electronic Component

$33.44 $66.89

1 sold

Categories: Electronic Components & Supplies, Active Components

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25% off
1Pc-10pcs XGZP040 Water Pressure Sensor Module 0-40KPA Water Pressure Level Liquid Quid Level/Water Depth Measurement M04 M03 1Pc-10pcs XGZP040 Water Pressure Sensor Module 0-40KPA Water Pressure Level Liquid Quid Level/Water Depth Measurement M04 M03

1Pc-10pcs XGZP040 Water Pressure Sensor Module 0-40KPA Water Pressure Level Liquid Quid Level/Water Depth Measurement M04 M03

$0.45 $0.60

Categories: Electronic Components & Supplies, Active Components

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50% off
DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

DC 5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry

$20.70 $41.41

29 sold

Categories: Electronic Components & Supplies, Active Components

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33% off
Stainless steel float level switch, water level detector, low water level alarm, full water level alarm, overflow and leakage se Stainless steel float level switch, water level detector, low water level alarm, full water level alarm, overflow and leakage se

Stainless steel float level switch, water level detector, low water level alarm, full water level alarm, overflow and leakage se

$106.12 $158.55

Categories: Electronic Components & Supplies, Active Components

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5% off
LILYGO® T5S3 Pro 4.7-inch E-Paper Display ESP32-S3 LoRa Wireless Module 16 Gray Levels Ultra-Low Power E-paper Development Board LILYGO® T5S3 Pro 4.7-inch E-Paper Display ESP32-S3 LoRa Wireless Module 16 Gray Levels Ultra-Low Power E-paper Development Board

LILYGO® T5S3 Pro 4.7-inch E-Paper Display ESP32-S3 LoRa Wireless Module 16 Gray Levels Ultra-Low Power E-paper Development Board

$1249.38 $1315.14

Categories: Electronic Components & Supplies, Active Components

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Liquid level sensor contact photoelectric power consumption low sensitivity high liquid level detection in stock

Liquid level sensor contact photoelectric power consumption low sensitivity high liquid level detection in stock

$122.00 $122.00

Categories: Electronic Components & Supplies, Active Components

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8% off
High Voltage High Power MOSFET Module PWM Regulation Electronic Switch Control Board High and Low Level Optocoupler Isolation High Voltage High Power MOSFET Module PWM Regulation Electronic Switch Control Board High and Low Level Optocoupler Isolation

High Voltage High Power MOSFET Module PWM Regulation Electronic Switch Control Board High and Low Level Optocoupler Isolation

$42.61 $46.32

Categories: Electronic Components & Supplies, Active Components

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8% off
GEOX 150S 157S Low Water Cut Off Switch Timed Cut-off Boiler Water Level Controller Spare Parts GEOX 150S 157S Low Water Cut Off Switch Timed Cut-off Boiler Water Level Controller Spare Parts

GEOX 150S 157S Low Water Cut Off Switch Timed Cut-off Boiler Water Level Controller Spare Parts

$920.00 $1000.00

Categories: Electronic Components & Supplies, Active Components

Buy Now
8% off
DC 5V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger DC 5V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger

DC 5V 1 2 4 6 8 way relay module for arduino 1 2 4 6 8 channel relay module with optocoupler High and Low Level Trigger

$23.00 $25.00

Categories: Electronic Components & Supplies, Active Components

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31% off
Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino

Relay Module 8 Channel 5V 12V 24V Board Shield With Optocoupler Isolation Support High and Low Level Trigger for Rasp Pi Arduino

$54.80 $79.42

1 sold

Categories: Electronic Components & Supplies, Active Components

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50% off
* Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection * Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

* Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

$35.09 $70.18

Categories: Electronic Components & Supplies, Active Components

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25% off
10Pcs/1pc Non-contact Liquid Level M03 M04 Water Level Detection Module Sensor Touch Switch Liquid Sensor 3-4.5mm for Arduino 10Pcs/1pc Non-contact Liquid Level M03 M04 Water Level Detection Module Sensor Touch Switch Liquid Sensor 3-4.5mm for Arduino

10Pcs/1pc Non-contact Liquid Level M03 M04 Water Level Detection Module Sensor Touch Switch Liquid Sensor 3-4.5mm for Arduino

$0.45 $0.60

8 sold

Categories: Electronic Components & Supplies, Active Components

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Non contact liquid level detector metal non-metal ultrasonic liquid level controller high and low liquid level monitoring switch

Non contact liquid level detector metal non-metal ultrasonic liquid level controller high and low liquid level monitoring switch

$42.98 $42.98

Categories: Electronic Components & Supplies, Active Components

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69% off
1 Channel 5V / 12V Relay Module Board Shield With Optocoupler Support High And Low Level Trigger For Arduino 1 Channel 5V / 12V Relay Module Board Shield With Optocoupler Support High And Low Level Trigger For Arduino

1 Channel 5V / 12V Relay Module Board Shield With Optocoupler Support High And Low Level Trigger For Arduino

$19.07 $63.44

113 sold

Categories: Electronic Components & Supplies, Active Components

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5% off
Electronic building block active buzzer module/low-level trigger/buzzer control board

Electronic building block active buzzer module/low-level trigger/buzzer control board

$14.25 $15.00

Categories: Electronic Components & Supplies, Active Components

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5% off
MAX30102 Heart rate Sensor Module Puls detection Blood oxygen concentration test For Arduino STM32 Ultra-Low Power MAX30102 Heart rate Sensor Module Puls detection Blood oxygen concentration test For Arduino STM32 Ultra-Low Power

MAX30102 Heart rate Sensor Module Puls detection Blood oxygen concentration test For Arduino STM32 Ultra-Low Power

$3.15 $3.32

777 sold

Categories: Electronic Components & Supplies, Active Components

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40% off
Low-temperature vacuum frying equipment for detecting oil and sauce CIP cleaning, high-temperature level switch sensor Low-temperature vacuum frying equipment for detecting oil and sauce CIP cleaning, high-temperature level switch sensor

Low-temperature vacuum frying equipment for detecting oil and sauce CIP cleaning, high-temperature level switch sensor

$1500.00 $2500.00

Categories: Electronic Components & Supplies, Active Components

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33% off
10-100PCS/Lot IS0103 Laser Receiver Tube-to-Tube (Non-Modem) Normal High/Low Level IS0103/IS0203 Optional 10-100PCS/Lot IS0103 Laser Receiver Tube-to-Tube (Non-Modem) Normal High/Low Level IS0103/IS0203 Optional

10-100PCS/Lot IS0103 Laser Receiver Tube-to-Tube (Non-Modem) Normal High/Low Level IS0103/IS0203 Optional

$3.89 $5.80

11 sold

Categories: Electronic Components & Supplies, Active Components

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51% off
Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

Non-Contact Water Level Detector Sensor Module Touch Switch Liquid Level Sensor High And Low Level NPN Output Level Detection

$33.01 $67.36

9 sold

Categories: Electronic Components & Supplies, Active Components

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5/10PCS TLP281 4-Channel Opto-isolator IC Module For Arduino Expansion Board High And Low Level Optocoupler Isolation 4 Channel 5/10PCS TLP281 4-Channel Opto-isolator IC Module For Arduino Expansion Board High And Low Level Optocoupler Isolation 4 Channel

5/10PCS TLP281 4-Channel Opto-isolator IC Module For Arduino Expansion Board High And Low Level Optocoupler Isolation 4 Channel

$4.41 $4.41

4 sold

Categories: Electronic Components & Supplies, Active Components

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50% off
1PCS 5V Low Level Relay Module 1 2 4 8 Channel Solid State Relay Modules 240V 2A with Resistive Fuse for Arduino 1PCS 5V Low Level Relay Module 1 2 4 8 Channel Solid State Relay Modules 240V 2A with Resistive Fuse for Arduino

1PCS 5V Low Level Relay Module 1 2 4 8 Channel Solid State Relay Modules 240V 2A with Resistive Fuse for Arduino

$33.36 $66.73

Categories: Electronic Components & Supplies, Active Components

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DC 3.5V-12V KA2284 Power Audio Voltage Level Indicator Battery Capacity Indicator Red Green LED For Voltmeter Volume VU Meter DC 3.5V-12V KA2284 Power Audio Voltage Level Indicator Battery Capacity Indicator Red Green LED For Voltmeter Volume VU Meter

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Categories: Electronic Components & Supplies, Active Components

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Categories: Electronic Components & Supplies, Active Components

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