Street Address: E01A the fifth floor, Liyuan Square, No.45 YongFu Road, Guangzhou China Guangzhou Guangdong 510500 China
Working voltage: DC12V +/- 2V Beeper: 70-90dB Working temperature: -40~+80°C Frequency: 40KHz Detection distance: 0.4-2m Alarm distance: 0.3-0.6m