Model Number: SB-E17-1 Brand Name: CISBO Key Specifications/Special Features: Specifications:3 sensors install in name plate and detect obstacle distanceLED display. The sensors aid detecting potential back obstacles and enable accurate distance measurement to make reversing safe and convenientDIY install: Auto-detecting and auto-alarming mechanism3 stage switch to change the sensor sensitivity according to the name plate height. The height means the sensor to ground:

Stage 1: 35-40cm height

Stage 2: 40-60cm height

Stage 3: 60-80cm height

Alarm by bi-bi sound

Easy to install, no damage to car bumper

With LED display, the detected distance is showed on the display, alarm by three-step bi-bi sound