White nylon plastic with a matte finish and slight grainy feel.
About this Product
This is a protector for a LiPo Battery Voltage Tester Monitor Low Voltage Indicator Buzzer Alarm.
You can purchase the alarm on ebay.com.
It mounts under the battery.
Makes it easy to monitor your battery and has a low battery alarm. (sold separately)
Will fit a TBS Discovery Pro.
I use double sided foam tape to hold down the monitor.