HiSmart is a DIY wireless home security system that anyone can quickly and easily install The free smart app HiSmart App allows you to monitor events at home in real time!
You can connect and control an unlimited number of accessories to the HiSmart system according to your needs: Smart Bulbs, Motion Sensors, Remote Controllers, Smoke Detectors, Door/Window Sensors etc It also works with Smart Cameras and Smart Plugs which allow users to watch live video or recorded files or turn ON/OFF the home appliances remotely When an unsafe event happens, like a break-in or pressing from panic button, the system will alert all emergency contacts with push notifications or SMS texts, while generating a 100db built-in siren to scare off any intruder

NOTE: this is not a standalone device, but requires being paired with HiSmart Main Hub
This wireless contact sensor is an accessory of smart alarm system It’s fashion design, energy saving, and low battery warning supported The main panel will send a SMS to user for battery replacement when needed It’s easy to setup and works well with most doors and windows When transmitter and magnet are apart, the sensor triggers alarm
• Transmitter can be put on either of magnet’s left or right side

Techncal specification:

Working Voltage: DC 3V
Battery: 1 x CR2032 (3V)
Working Current: ≤27mA
Standby Current: ≤2μA
Transmission Distance: without obstacle 200m
Transmission Frequency: 43392MHz
Working Temperature: -10°C~50°C
Humidity: ≤90%RH (non-condensing)
Dimensions:
Transmitter: 800mmx382mmx133mm
Magnet: 800mmx148x129mm

Warranty:

24 months