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Relay modules and switches relay switch 12v relay 20A Relay Module - 5v relay module arduino solenoid valve
  1. MQ-2 Smoke Gas LPG Butane Methane Sensor Module

    MQ-2 Smoke Gas LPG Butane Methane Sensor Module

    $0.95 As low as $0.85
  2. XH-W1315 High Temperature Digital Thermostat

    XH-W1315 High Temperature Digital Thermostat

    As low as $9.75
  3. D203S Infrared Human Body PIR Motion Detection Sensor

    D203S Infrared Human Body PIR Motion Detection Sensor

    $1.95 As low as $1.73
  4. XH-W3002 Digital Thermostat Controller

    XH-W3002 Digital Thermostat Controller

    $1.50
  5. SR602 Infrared Motion Detection Sensor Module

    SR602 Infrared Motion Detection Sensor Module

    $0.40
  6. MLX90614 GY-906-BAA Infrared Temperature Sensor Module

    MLX90614 GY-906-BAA Infrared Temperature Sensor Module

    $6.95 As low as $6.16
  7. HLK-LD2410B Human Presence Radar Sensor Motion Module

    HLK-LD2410B Human Presence Radar Sensor Motion Module

    $4.25 As low as $3.76
  8. YL-69 Soil Moisture Detection Sensor Module

    YL-69 Soil Moisture Detection Sensor Module

    3.6  (5) 
    $0.20
  9. Ai-Thinker Rd-01 Human Presence Sensor With Wifi & Bluetooth

    Ai-Thinker Rd-01 Human Presence Sensor With Wifi & Bluetooth

    $4.75 As low as $4.20
  10. HTC-1 LCD Digital Temperature & Humidity Meter

    HTC-1 LCD Digital Temperature & Humidity Meter

    5.0  (1) 
    $1.75
  11. KY-040 Rotary Encoder Module with Push Switch

    KY-040 Rotary Encoder Module with Push Switch

    4.4  (8) 
    $0.45 As low as $0.40
  12. EL-55 Wired PIR Motion Sensor

    EL-55 Wired PIR Motion Sensor

    Out of stock
  13. WX-101W Thermostat Temperature Control Switch Module

    WX-101W Thermostat Temperature Control Switch Module

    Out of stock
  14. YwRobot PIR Motion Detection Sensor Module - Type 2

    YwRobot PIR Motion Detection Sensor Module - Type 2

    Out of stock
  15. MLX90614ESF-BCC IR Temprature Sensor

    MLX90614ESF-BCC IR Temprature Sensor

    Out of stock
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