KERUI Wireless PIR Motion Sensor Door Bell Shop Visitor Alert Chime Alarm Burglar

Attention: 1, Please use good quality alkaline batteries, avoid using less electricity and electrolyte leakage ordinary carbon battery. 2, Non-professional workers do not repair without authorization. 3, Please avoid the product installed in the rain,with long time direct sunshine,strong magnetic,heavy cold and hot air place. Feature: Power safe design, Triple functions 32 songs computer optional Led indicator light Large range of infrared Set up and adjust 1,Sound adjustment:4 level of adjustable sound volume,press the button and adjust1-2-3-4-3-2-1 , but volume of the alarm sound is not adjustable 2,Choosing music:32 beautiful songs ,press the music key to choose ,to return to dingdong after restart or close. 3,Mode choice: VOICE :play "dingdong ,hello,welcome" ALARM: Play alarming MUSIC:32 Beautiful songs to choose Technical parameter: 1,Working current:<80mA 3,Detection range:4-6m(25') 4,Detection angle:110' 5,Installation height :1.5m-2.5m 6,Battery installation schematic diagram:Pull the switch battery cover,open the battery cover Installed correctly,Press the key of battery switch ,finish the installation. Package included: 1 x Motion Detector Entry Door Bell Wireless Infrared PIR Chime Sensor Alarm