Security Systems and Surveillance

Ultrasonic sensor for car alarm : car alarm ultrasonic sensor / proximity detector Ultrasonic sensors are designed to provide intrusion detection of vehicles fitted with sliding windows (as apposed to wind-up) and utilities fitted with canopies. The ultrasonic principle works approximately the same as police radar. A transmitter produces ultra high frequency sound waves, which bounce off all surfaces inside the car. A receiver then picks up the reflected sound waves and sends a trigger signal to the connected alarm when a change in the shape of the echo is detected. Ultrasonic sensors require a rigid, stable perimeter with no air movement, i.e. convertibles will not reflect sound waves and soft-top roof's will move when battered by wind. Features of Ultrasonic sensor 1.built-in-Quartz-controlled ultrasonic volumetric 2. protection sensor 3. ultrasonic sensitivity adjustable. a trigger signal to any connected any car alarm system with negative trigger Wiring RED : +12V or alarm's positive armed output Black: c

SquareTrade © AP6.0 SquareTrade © AP6.0 You are looking at a BRAND NEW GENUINE Scytek MS-2 Dual Zone Microwave Radar Sensor This Scytek will create an invisible barrier around your car. If an intruder gets too close to the car, there will be a warning chirp, then the alarm will activate if the intruder continues to be too close to the car. This unit includes separate interior and exterior sensitivity adjustments so you can adjust how sensitive to movement you want the sensor to be, both insid