Detector Kits
A variety of kits to detect water levels, IR energy, plus other stuff.
Items in this category require component level assembly
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- Ding Dong PIR Door Chime Kit$14.95
SKU: FK512
This Door Chime kit chimes when it detects a warm body. Learn More - Frost Indicator kit$12.95
SKU: K2644
Flashing LED indicates road temperature near freezing point Learn More - Geiger-Muller Counter Kit$207.95
SKU: K2645
This Geiger Counter kit provides acoustic measurement of radiation levels. 9V battery operation Learn More - Lie Detector - Assembled$7.95
SKU: FA940
This lie detector circuit uses the principle of galvanic skin resistance. Learn More - Lie Detector Kit FK940$5.95 As low as $4.95
SKU: FK940
This lie detector circuit uses the principle of galvanic skin resistance. Learn More - Light Sensitive Switch Kit$8.95 As low as $8.25
SKU: MK125
Fully Automatic Light Sensitive Switch Kit, 12VDC turn your lights on when it gets dark. Learn More - Liquid Level Controller Kit$22.95 As low as $19.95
SKU: K2639
Liquid level control kit with LED control for Low, Med and High settings. Learn More - Low Battery Alarm Kit (for 12V)$6.25 As low as $5.95
SKU: FK915
Don't let your battery go below 12V with this low battery alarm kit. Learn More - Mains Voltage Detector Kit$12.95
SKU: K7101
This line voltage detector has a flashing LED to indicate if voltage is present, flashing speed indicates proximity. Learn More -
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- Optical Proximity Switch Kit$29.95
SKU: K8092
Optical Proximity Switch Kit using IR to sense near movement. Learn More - PIR Motion Sensor Doorbell Kit$16.95
SKU: FK516
Door entry alarm kit. Alarms when it detects a warm body.
- Proximity Sensor Switch Kit$10.95 As low as $9.85
SKU: FK437
Proximity Sensor Switch Kit Learn More - Refrigerator Door Warning Kit$4.95
SKU: FK911
Keep those hydro bills down with this refrigerator door alarm kit. Learn More - Soil Moisture Indicator Kit$3.95 As low as $3.25
SKU: FK908
Never let your plants go dry again with this soil moisture indicator kit. Learn More - Ultrasonic Detector Sensor Kit$37.50
SKU: FK508
This Ultrasonic Detector Sensor kit works under the same principals as a bat's echo-sound. Learn More - Ultrasonic Movement Detector Kit$21.95
SKU: QK20
A matched pair of ultrasonic transducers operating at 40KHz will reliably detect movement 4m to 7m away. Use 9V to 12V. Two circuit boards. Circuit is crystal locked by 40 KHz crystal for maximum efficiency. Add your own alarm circuit. Learn More - Ultrasonic Sound and Bat Detector Kit$34.95
SKU: K8118
This detector converts imperceptible ultasonic sounds for humans, such as bat signals, into audible noise. Learn More - Ultrasonic Wind Speed Meter Kit$62.95
SKU: QK168
Uses the Doppler Effect between two 40kHz ultrasonic movement detectors to measure wind speed. Uses PIC16F628. 9V battery required. Learn More - Water Level Pump Control Kit$9.25 As low as $8.25
SKU: FK438
This is a warning and water pump level control kit for checking water level and to control the water pump automatically. Learn More
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