The HT336 is a Ultrasonic Alarm . When an object (human ,animal or any object) is moving, it will energized the relay .
This circuit uses 40Khz Ultrasonic waves to detect moving objects. Example: When a burglar enter the detection zone, the reflected waves changes it's frequency slightly. This change of frequency cause the circuit to activated the relay for a few second.
Working Voltage: 9-12VDC
Can change the sensitivity of sensor
With SPDT relay output
Use 40T and 40R transducer transmitter and receiver
Can connect to a burglar alarm and Flashing light.
You need to have a soldering skill and basic knowledge of testing
For any inquiry or other technical problem please email us!
Note : The seller assumes all responsibility for listing this item. Please contact the seller to resolve any questions before or after purchasing the item. Currency is RM (Ringgit Malaysia) unless otherwise noted.