A receiver 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.
All items are brand new unless otherwise stated
By clicking buy it now you are agreeing to the terms and conditions.
Terms and conditions
- Please inspect all your order(s) upon
receipt,. if the item is received defective or incorrect item shipped. Please
contact our customer service within 7 days for an exchange.
- Professional installation is highly recommended. Buyer assumes all risk on
shipment and usage.
