receiver switch with built in voltmeter.

No eBay APP ID and/or Cert ID defined in Kunena configurationI got a couple of these off e-bay, to try, and suffice to say I've sent for a couple more!
They are just what you see, a proper toggle-switch with a built in voltmeter, so you can see what is left in your battery.
They are quite large, so not suitable for tiny models, but for use in the bigger ones, with a lot of servos, they would be ideal.
The casing is 1.5 inches long, 0.5 wide, and 1 inch deep.
They weigh 40 grams.
Mine are fitted with Futaba plugs.
I am waiting to hear if they will accept a higher voltage, for other purposes.

The item number - 260985793012
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There's no point in having one on an eleccy model with any form of voltage dropper from the lipo! The volts are regulated by the dropper!
Dean, i put suitable for the larger model because of the size of the switch and casing, not because of the weight!