LED Parking sensor Features: 1. Intelligent digital display of distance against obstacle 2. Standard 3-wave and 7-band light stripe display 3. All-round detection with 2/4/6 ultrasonic sensors 4. Voice report optional Technical parameters: 1. Operating voltage: 12V DC (24V optional) 2. Operation current: 20mAh ~ 200mAh 3. Sensor installation height: 45 ~ 60cm Detection distance: 0.4 ~ 2.0m 4. Ultrasonic frequency: 40kHz 5. Operating temperature: -40°C ~ +85°C 6. Beep volume: 80 ~ 100dB (at 30cm distance) Packing details: 20pcs/ctn Carton dimensions: 60 x 41 x 29cm