This product is suitable for various kinds of RC battery, When the voltage is below the set value, it will buzzer with red LED light, pre-set value 3.3V. Push the key which can change the voltage setting and save.
At this price, there is no reason not to buy a few of these and attach one to every air frame. Just set it at 3.7 volts and you’ll keep your batteries happy and health.
It’s loud enough to be heard at several hundred feet and can help you find a downed plane in undergrowth.
I use them constantly. I check every pack before I fly, monitor storage voltage, and measure the amount of battery used to maximize flight times. I program the alarm for 3.4 volts and leave them in my larger planes when I fly.
Reads total voltage correctly, but reads individual cell values completely incorrectly. Verified I was using it right 2 times because it would be a very valuable tool if it worked.
Sharp backlit LCD screen, applicable under poor light condition
Compact and extremely portable
Suitable for various kinds of RC battery, such as LiPo/Li-ion/Li-Mn/Li-Fe Battery
Easy to install
Dimension: 40 * 25 * 11mm
Voltage detection precision:±0.01V
Unit voltage display range:0.5-4.5V
Total voltage display range:0.6-36V
1S test mode voltage range: 3.7-30V
Low voltage alarm mode for:1-8S
Alarm set value range: OFF-2.7-3.8V
1x Lipo Battery Voltage Tester(the battery cable do not included)