This Battery meters were purchased from a rental house in Los Angeles. Milled from Solid Aluminum-  and with plexiglass display protector, they were build to be bullet proof, unlike other on-board plastic battery meters- that never survive the trenches.  

They measure  2.6" Width  X  3" Length   X   .74" Thick  and weigh about an ounce so they are perfect for on-board use. They have great displays and time code- to show the active metering , and  several mounting options with screws included.  I've used them on my Sony Venice, Ronin2  and my  Steadicam Sled- but they can be used on anything that needs to have a precise battery reading

  A  Port-a- Brace SOFT CASE is also included.

179.99 each/OBO