It has to be on open because of the sensor with sensitivity. Feels like copy paste from chinese into english in google t ranslator.
Instructions that came with the product are really really bad translated. Find many great new & used options and get the best deals for Mini Wireless Motion GSM PIR MP Alarm Alert Detection Monitor Infrared Sensor A9 at the best. Only US18.99, buy best Mini A9 GSM PIR Wireless Motion Detection PIR Anti-theft Alert Infrared GSM Security Monitor Alert Alarm sale online store at wholesale price. 1BYONE® PIR Motion Detector Wireless Alarm Waterproof Home Garage Caravan Shed. That will make charges on your sim in the sensor alarm. Hot WiFi Mini PIR Motion Sensor Infrared Alarm Detector For Tuya Smart Life APP. This model sends you back sms when you turn it on, off or change settings. Indoor Outdoor Wireless PIR MP Alert Infrared Sensor Anti-theft Motion Detector Alarm Monitor Home Security Alarm System with Remote Control. Motion Sensor Wireless Alert Secure System Doorbell Alarm For Home Driveway Patrol Garage White. Number binding: any number call in 15 seconds later will be connected automatically. Insert SIM card into the device for controlling.
And it is suitable for use in home, office, hospital, storage, etc. It has the function of audio monitoring and positioning. When people come close to this device, it will detect signal, alarm and send a call to the bound number. If you place sensor beside a wall, into a tube or under a chair, so that the sensor does not have enough width (more then let's say 90 degrees) then the sensor does not work! LESHP A9 Mini PIR Alarm Sensor Infrared GSM Wireless Alarm High Sensitivity Monitor Motion Detection Anti-theft EU Plug Piece (Black) z104. alert needs to insert SIM card to control.
I tested the sensor range which is correct. If you insert multiple numbers the device calls each separately one after another, not all at once. After movement the device calls you in 10-15 seconds.