What's in the box:

Smart Water Sensor Water Detector Water Leak Sensor and Alarm with APP Notification Water Detector & Alarm Compatible with 2.4GHz Home Security Zigbee Work With Gateway (Standard)

Features:
Smart Water Sensor: download the Smart Life APP for free, simply paired with your smart phone, convenient to detect water leakage of your house.
Water Leakage Detection: when the sensor detect the water, the device triggered and will push alarm notification to your smart phone.
Device Sharing & APP Recording: allow others to control the device, and support checking all the added devices alarm message in history.
Concise Style: mini compact water sensor is easy to use and its solid white appearance fits with houses in various decorative-style.
Wide Application: 40m wireless transmit distance, can be used on the living room, bathroom, kitchen, office, and factory to detect the water leakage.

Specifications:
Material: PC+ABS
APP Name: Smart Life
Battery: 3V CR2 battery (NOT included)
Standby Current: 3-107uA
Waterproof Level: IP55
Wireless Frequency: 2.4GHz
Communication Protocol: Zigbee 3.0
Wireless Standard: IEEE 802.11 b/g/n
Wireless Range: 40M
Item Size: 69 * 69 * 34mm / 2.72 * 2.72 * 1.34in
Item Weight: 75g / 2.65oz
Package Weight: 110g / 3.88oz
Package Size: 9.5 * 8.5 * 5cm / 3.74 * 3.35 * 1.97in

Packing List:
1 * Water Sensor
1 * Extension Cable
1 * Pack of Screws
1 * Manual (English)

Note:
The device needs to be used with ZigBee gateway.