WIFI frequency: 802.11b/g/n. zigbee frequency: 2.400GHZ-2.484GHZ (need to match the gateway). Alarm mode: Zigbee/WIFI (optional). Alarm current: ≤160mA. Installation: Mounting type. Compact size, easy to install, can be flexibly placed in a variety of doors, windows, drawers, etc.
eBay