Key feature: Indicating different distance, direction separately by voice ( Voice box or buzzer ) Characteristics: 1) Automatically starts 2) Bionic detecting - head design to measure accurately, quality guarantee 3) Available for 2 ~ 4 sensors of embed or adhesive, many color, flash type 4) Many camcorder model for selection Technical data: 1) Working voltage: DC12V 2) Max. power: < 5W 3) Working temperature: - 20 ~ 50oC 4) Display distance: d1.8m 5) Alarm distance: d1.5m 6) Alarm loudness: e50dB 7) Visible display input: 1VP - P Add:Room401--402, No.98--4, Bixiu Road,Shanghai, China 201100 Tel:86-21-64145761-8012 Fax: 86-21-64145447