Street Address: No 48, Longdong Road, Tianhe District, Guangzhou City, China Guangzhou Guangdong 510507 China
City: Guangzhou
Province: Guangdong
Country/Region: China
Universal
PA_D721 BiBi / Human voice Item 2 rear sensors PS_D722 BiBi / Human voice 4 rear sensors PB_D723 BiBi / Human voice 4 rear sensors, 2 front sensors PD_D724 BiBi / Human voice 4 rear sensors, 4 front sensors Features: 1. 7 bands digital LED display 2. With stand, free swiveling for the best viewing direction 3. Stage-by-stage sound alarm 4. Optional sensor style and color 5. Human voice alarm (option) 6. Anti-freezing, rainy-proof design, work well under extreme cold weather Specifications: 1. Working voltage: DC12V +/- 2V 2. Power Input: 5W(max) 3. Beeper: 80dB 4. Working temperature: -40~+80C 5. Frequency: 40KHz 6. Detection distance: 0.4-2m 7. Alarm distance: 0.3-0.6m 8. Best detection distance: 0.4-1.5m.