10pcs 3-24V Piezo Electronic Buzzer Alarm 95DB Continuous Sound Beeper
S$ 21.45
Sensors - Testing, PIR, Sound
2pcs 3-24V Piezo Electronic Buzzer Alarm 95DB Continuous Sound Beeper Sensor
S$ 11.66
AM312 PIR Motion Body Human Sensor Mini IR Infrared Pyroelectric Detector Module
S$ 8.02
2pcs IR Infrared Obstacle Avoidance Sensor Module Smart Car Robot Photoelectric
S$ 13.11
2pcs HC-SR501 HCSR501 PIR Sensor
S$ 10.33
10pcs Soil Hygrometer Humidity Detection Module Moisture Water Sensor
S$ 17.13
20pcs Photoresistor GL5528 GL5537 GL5539 GL5549 GL5506 GL5516 5mm
S$ 8.39 to S$ 8.57
37pcs Sensor Kit with Box Electronics Arduino Learning Beginner Sensor Modules
S$ 48.50
10x Capacitive Analog Soil Moisture Sensor 3.3~5.5V Corrosion Resistant 3 Pin
S$ 34.26
RC Battery Low Voltage Alarm 1S-8S Buzzer Indicator Checker Tester LED
S$ 8.38
10pairs 3mm 940nm LEDs Infrared Emitter and IR Receiver Diode Diodes
S$ 10.34
HC-SR505 Mini Infrared PIR Motion Sensor Precise Infrared Detector HCSR505
S$ 7.84
30x Capacitive Analog Soil Moisture Sensor 3.3~5.5V Corrosion Resistant 3 Pin
S$ 77.08
INA219 I2C/IIC CJMCU Bi-directional Current Power Power Supply Detect Sensor
S$ 8.21
Capacitive Analog Soil Moisture Sensor 3.3~5.5V Corrosion Resistant 3 Pin
S$ 5.66
10pcs AM312 PIR Motion Body Human Sensor Mini IR Infrared Pyroelectric Detector
S$ 30.60
2pcs 20A Range Current Sensor Module ACS712
S$ 9.89
3pcs AM312 PIR Motion Body Human Sensor Mini IR Infrared Pyroelectric Detector
S$ 22.30
2pcs HC-SR501 Human Infrared IR Pyroelectric PIR Motion Sensor Detector HCSR501
S$ 11.39
Soil Hygrometer Humidity Detection Module Moisture Water Sensor Kit 2Pin
S$ 5.80
10pairs 5mm 940nm LEDs Infrared Emitter and IR Receiver Diode Diodes 301A
S$ 11.59
RC Battery Low Voltage Alarm 2S-8S 0.5V-36V Buzzer Indicator Checker Tester LED
S$ 9.81
Active Speaker Buzzer Module Boards
S$ 8.83
DC 12V 24V 6A Adjustable PIR Motion Sensor Switch Automatic Light Control Switch
S$ 14.54
2x High Sensitivity Sound Microphone Sensor Detection Module
S$ 7.84
2pcs 5A Range Current Sensor Module ACS712
S$ 10.34
High Sensitivity Water Sensor Switch
S$ 6.87
AM312 Mini PIR Motion Human Body Sensor Infrared IR Pyroelectric Detector Module
S$ 8.20
2pcs Rotary Encoder Module Brick Sensor Development
S$ 9.27