DYN4073 Dynamite LiPo Low Voltage Warning Module, 2S, 3S, 4S.

 - Audible tone alerts user that a Li-Po battery has reached low voltage
 - Works with 2, 3 and 4 cell batteries
 - Great for those who wish to use Li-Po to power their starter box
 - Allows users to utilize ESCs that do not have a built-in cutoff
 - Completely programmable

Length: 1.38 in (35mm)
Width: 0.91 in (23mm)
Height: 0.55 in (14mm)