Parking sensor or parktronic ou avoid frustrating incidents and associated material expenses. 8 sensors in the set fully control a situation in front of and behind a car. A LED display with an integrated beeper ensures visual and sound notification about an obstacle. Memory function of prominent car parts: tow bar, spare wheel, etc. - excludes false activations. Properties Operating voltage: 12V Sensor diameter: 22mm Waterproof connector Detection distance: 2.5m Power supply: 12V IP-protection: 67 (washing with water under a small pressure is possible; resistance to dirt and dust) Notification loudness: 80 dB Temperature range: -30C~ +80C All-season use Four-level approach indication LED display with integrated beeper Memory function of prominent car parts: tow bar, spare wheel, etc. Cable length of rear sensors: 2.5m Cable length of front sensors: 6m