When the water sensor detects water leakage, it emits 60dB alarm sound within 60 seconds, and the alarm information is sent to your smart phone.Even if there is no WiFi, it can still send out a loud alarm of 60 decibels and a flashing red light.It is suitable for monitoring houses, warehouses, basements, sinks, dishwashers, household appliances and filter devices.With built-in rechargeable battery, it can be used for one year and you can check its power on the app.With the simple structure, it is easy to install.Item Name: Alarm SensorMaterial: ABSWiFi: 2.4GHz, 802.11 b/g/nBattery Capacity: 3.7V 500mAh (Included)Charging Current: 125mAAlarm Current: Standby Current: Buzzer Alarm Sound: Standby Time: more than 1 YearFeatures: Rechargeable, High Sensitivity, Overflow MonitorProbe Cable Length: 200cm/78.7" (Approx.)Size: 88mm x 35mm x 18mm/3.47" x 1.38" x 0.71" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.After the sensor is powered on, if the password and WIFI account are not matched, it will enter sleep mode after 3 minutes.It has been connected to the router WiFi. After reporting an alarm or 6 seconds in a normal state, it will enter the sleep mode. Until the alarm occurs again, the system wakes up.The device enters the sleep state after 6 seconds after the network is successfully connected.The device is a low-power product and cannot be operated while charging. Just place the device after fully charged, and do not plug it for a long time.Package Includes:1 x Alarm Sensor1 x Probe Cable1 x Double-sided Tape1 x User Manual