2 in 1 voltage tester and low voltage buzzer alarm suitable for most RC heli,car,boat,airplane and quadcopter. The voltage tester can be used to check the remaining voltage of 1-8 cells lipo-batteries. When connected to the balance charging cable, it also act as a voltage monitor in which the alarm will trigger when your lipo batteries voltage reached the preset low voltage, which is especially important for RC helicopter, Plane and Boat when it's getting out of your vision range.
Ever lost your RC helicopter and plane before and cannot find it? Then this alarm is a must have item for you, the alarm is so loud that it can be heard from as far as 300meters distance, you don't have to worry about losing your RC machine again.
1) Use for 1-8S Lipo/Li-ion/LiMn/Li-Fe
2) Voltage detection precision: +_0.01V.
3) Unit voltage display range: 0.5~4.5V
4) Total voltage display range: 0.5~36V
5) 1S test mode voltage range: 3.7~30V
6) Low voltage alarm mode for 2-8S
7) Alarm set value range: OFF~2.7~3.8V
8) Size: 40mm x 25mm x 11mm
9) Weight: 9g
10) Work Voltage: 22V
1 x 1-8S Battery Voltage Tester Low Voltage Buzzer Alarm