12V Ultrasonic Motion Sensor Module for Compatible Car Alarms
Add an ultrasonic input when building or extending a compatible wired vehicle alarm. This 12V-class motion-sensor module uses paired transducers and an external trigger connection. It is for installers matching a sensor module to an existing alarm or control circuit.
- ✅ Add another input to an existing alarm setup — The ultrasonic module provides a trigger interface for a compatible external circuit.
- ✅ Position the sensing assembly as one unit — Both ultrasonic transducers are housed in a single body.
- ✅ Check operation during setup — The visible LED indicators provide a status reference.
- ✅ Integrate through a wired connection — The supplied connector lead links the module to a matched installation.
- ✅ Adjust the installation angle — The illustrated bracket has a hinged attachment.
A wired sensor component for an installed alarm
The module transmits and receives ultrasonic signals and responds to changes in the monitored space. An external alarm or control circuit interprets its trigger output. It is not a standalone siren, immobiliser or complete vehicle alarm, and it does not guarantee detection or theft prevention.
The paired transducers sit at opposite ends of the housing, with status indicators between them. The bracket and connector lead give an installer the physical pieces for positioning and wiring. Check the actual unit's pinout, signal type and supply requirements against the host system before connection.
One sensor module with its illustrated bracket and connection lead is supplied. A host alarm, siren and power supply are not included. Test the installed system under the conditions in which it will be used; performance depends on placement, the monitored space and the rest of the alarm setup.
The housing contains an ultrasonic transducer at each end.
The connector lead links the module to a compatible external circuit.
A hinged bracket provides a mounting attachment.
The rear connection and adjustment area remain accessible during setup.
The module and illustrated lead are supplied; a complete alarm system is separate.
Technical details
- Product: ultrasonic motion-sensor module
- Application: compatible wired vehicle alarm or control circuit
- Supply family: 12V DC; verify actual unit requirements before wiring
- Ultrasonic frequency stated: 40kHz
- Sensing arrangement: paired transmitter/receiver transducers
- Indication: visible LEDs
- Connection: wired connector lead
- Mounting: illustrated hinged bracket
- Package: 1 module, bracket and connection lead
- Exclusions: host alarm, siren and separate power supply
Choose this module when its supply and trigger interface match the alarm installation you are building.
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