AG-security 2.4G Wi-Fi Battery Powered Door Window Magnet Contact Sensor, Compatible with Alexa Google Home AC Chargers and instead you can use

and instead you can use other wireless modules such as infrared

com/wiki/SIM7600CE_4G_HAT Dimensions & Weight Dimensions 2

15 in (15 cm x 10 cm x 8 cm) Weight 14

1 x Seven-segment display (4digit)

AG-security 2.4G Wi-Fi Battery Powered Door Window Magnet Contact Sensor, Compatible with Alexa Google Home AC Chargers and instead you can useSpecifications Battery: AAA1. 5V x 2 Standby current: 5uA Protocol: IEEE 802. 11b g n Wireless Range: 45m Operating Temperature: 0 40 (32F104F) Operating Humidity: 20% 85% Storage Temperature: 0 60 (32F 140F) Storage Humidity: 0% 90% Standby time6 months Wireless Type : 2. 4GHz Size: Main body : 93mm x40mm x20 mm Small body : 93mm x 13mm x 20 mm Download App 1. Android phone: downloadSmart Life from GooglePlay. 2. Iphone : downloadSmart Life from App