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

1 x Touch screen drive board (150cm cable w/ USB port)

1 * HC-SR501 human infrared sensor module

texts and symbols with ultra visual experience

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