Features:

²  This is battery voltage checker and low voltage buzzer 2-in-1 unit.

²  1S test mode test range 3.7 to 30V, which means you can test the battery pack without balance connectors like RX battery pack etc., LiPb or other power source voltage.

²  In other words, this very little devise can be used as a simple digital voltage meter.

²  Loudly buzzer can be heard from distance; you can put this device on your plane and use it as on- board alarm, so you can hear the low voltage alarm during flight.

Specifications:

²  Application: Use for 1-8S Lipo/LiMn/Li-Fe

²  Voltage detection precision:  ± 0.01V

²  Unit voltage display range: 0.5-4.5V

²  Total voltage display range: 0.5 - 36V

²  1S test mode voltage range: 3.7-30V

²  Low voltage alarm mode for 2-8S

²  Alarm set value range: OFF-2.7-3.8V

²  Weight: 8.7g/ 0.31oz

²  Size:  40 x 25 x 11mm

Kindly remind:

²  The sound of the low voltage alarm is very big, so please be prep-ared when use it for the first time, and you can turn it OFF when use indoors.

²  When the voltage is below the set value, it will buzzer with red LED light, pre-set value 3.3V.

²  Push key which can change the voltage settings and save.