Product information:
Model: ZWS16
Wireless technology: Zigbee
Operating voltage: DC 3V(CR2032 battery)
Transmission frequency: 2.4 Ghz
Operating temperature:-10°C to 55°C
Low battery indication: Yes
Battery life: more than one year (20 times a day)
Detection method: water immersion sensor probe
Size: 59.5mmx17mm

The shipment does not include batteries and requires self preparation