Specifications: APPSmart Life / Tuya Smart WiFi frequency2.4G WiFi (does not support 5G) Operating temperature-10~ 55 Dimension:69*23*19mm Cable length:1m MaterialABS Battery:2*AAA battery(Not included) Standby time:8 months Features: 1.REAL-TIME MONITORING AND ALARM: The device connects via WiFi to monitor water levels and leaks in real time and sends an alert to your mobile phone as soon as an abnormality occurs to ensure that you are able to take timely action to minimize potential damage. 2.EASY TO INSTALL: Graffiti WiFi Smart Flood Alarm is easy to install, no wiring required, just attach the device near the water source and use it, very convenient. 3.SENSITIVE AND FAST DETECTION: The device has highly sensitive sensors that can quickly detect changes in water level and water leaks and send timely alerts to ensure that you can respond quickly. 4.LONG STANDBY TIME: The device is designed with low power consumption, which can standby for a long time without frequent battery replacement, ensuring the continuous work of the device, so that you can use it with more peace of mind. 5.INTELLIGENT MANAGEMENT: Through the mobile APP, you can remotely monitor the water level and water leak anytime and anywhere, and you can set the alarm threshold, timer and other intelligent functions to make your life smarter and more convenient. Package includes: 1*Flood sensors