The Lithium Battery Tester with Low Voltage Alarm is a versatile and reliable tool for battery testing. It offers a convenient way to monitor the voltage of your batteries, ensuring that they are always in optimal condition. The adjustable low voltage alarm allows you to set the desired , preventing any potential damage caused by over-discharging or over-charging. Its small and lightweight design makes it perfect for on-the-go use. Features -Color:Black -Material:Electronic components -Size:4.00X2.50X1.10cm/1.57X0.98X0.43in -Note: Used to detect - lithium batteries -Voltage detection accuracy: ± 0.01V -Group voltage display range: 0.5V~4.5 -Total voltage display range: 0.5V~36V - test mode Voltage range: 3.7V~30V -Low voltage buzzer alarm mode 2S- -Alarm voltage setting range: OFF~ 2.5V ~3.8V -A versatile tool designed for testing the capacity of 1- lithium batteries. -Equipped with a convenient voltage display feature that allows for accurate monitoring of battery levels. -Incorporates a protective mechanism to prevent damage caused by overdischarging or overcharging. - Features a small and lightweight design, making it easy to carry around. -Provides an immediate alert through a buzzer and led light to indicate low voltage levels. Package list: 1 x tester