BX100 1-8S LiPo Battery Voltage Tester Low Voltage Buzzer Alarm with LED Indicator BX100 1-8S LiPo Battery Voltage Tester Low Voltage Buzzer Alarm with LED Indicator. Features: Push key can change the low voltage settings and save Easy e - works with any 1-8S Lipo/Li-Fe battery with balance connector Small and portable low voltage alarm, with double very loud buzzer To know the working state of your battery anytime, protect the battery from overcharge and over discharge Just plug into the balance plug and the LED will cycle through the total voltage as well as individual cell voltages Specifications: Voltage detection pricision: 0.01V Alarm set value range: 2.7V-3.8V Unit voltage display range: 0.5V-4.5V Total voltage display range: 0.5V-36V Suit for: 1-8s LiPo battery Size: 40 * 27 * 13mm Weight: 12g Package Information: Package size: 5 * 3 * 1.5cm / 2 * 1.2 * 0.6in Package weight: 16g / 0.5oz Adhesive tape package Package List: 1 * BX100 Voltage Tester