Functions:
Tested battery cell voltage (!#!gt!*! 3.6V) 2S LiPo battery: 2 green LED lights on
Tested battery cell voltage (!#!gt!*! 3.6V) 3S LiPo battery: 3 green LED lights on
Tested battery cell voltage (!#!gt!*! 3.6V) 4S LiPo battery: 4 green LED lights on
Cell voltage !#!lt!*! 3.3V， corresponding red light will on and alarm will be sounded


Specifications:
Used for: 2S-4S lipo battery
Package size: 4 * 2 * 1cm / 1.6 * 0.8 * 0.4in
Package weight: 5g / 0.2oz

Package list:
1 * Loudhailer Lipo Battery Voltage Alarm Indicator Checker