New Lipo battery Voltage Indicator volt meter monitor buzzer Alarm 1-6S 3.7V-22.2V 3.7V 7.4V 11.1V 14.8V 18.5V 22.2V foldable do not need to revise

do not need to revise it

Freeship 10x Servo Arm Round type Disc 25T Matal Horns For Towrer Pro MG995 MG996 Futaba ACE Robot

Wire Type: 24 AWG Red Black Dual core cable wire

Usage: For WLtoys V911 RC Helicopter

Fist is recording video

New Lipo battery Voltage Indicator volt meter monitor buzzer Alarm 1-6S 3.7V-22.2V 3.7V 7.4V 11.1V 14.8V 18.5V 22.2V foldable do not need to reviseUse for 1 8s Lipl Li ion LiMn Li Fe Voltage detection pricision: 0. 01V Unit voltage display range: 0. 5V 4. 5V Total voltage display range: 0. 5V 36V 1S test mode voltage range: 3. 7v 30v Low voltage alarm mode for 2 8S Alarm set value range: OFF 2. 7V 3. 8V When the voltage is below the set value,it will buzzer with red LED light,pre set value 3. 3V. Push key which can change the voltage settings and save. packing contents: 100% Brand New 1 X Buzzer