Lipo Battery Voltage Tester volt meter monitor buzzer Alarm 1-8s 37V-222V For Rc Lipo Battery Models Specifications: Use for 1-8s Lipo/Li-ion/LiMn/Li-Fe. Function of Checking Your Lipo Cells Voltage. Voltage Display Function and Low Voltage Alarm Funtion. Protect the Battery From Overcharging or Overdischarging. Test the Working State of Lithium Battery. Automatic Protects Against Reverse Connection. Each Size: 4*2.5*1.1cm Each Weight: 9g Battery Voltage Display: Voltage Detection Pricision: 0.01V. Unit Voltage Display Range: 0.5V-4.5V. Total Voltage Display Range: 0.5V-36V. 1S Test Mode Voltage ange: 3.7v-30v. Alarm Mode: Low Voltage Alarm Mode for 2-8S. Alarm Set Value Range: OFF-2.7V-3.8V. When The Voltage is Below the Set Value,Tester Will Buzzer with Red LED Light, Pre-set Value 3.3V. Push Key Which Can Change The Voltage Settings and Save. Tips: When the voltage is lower than the alarm value, it will beep constantly . When the product of the measured is unpluged, the alarm will stop. Or When the cells recover they will stop beeping . _x000D_