Review on CIPA 03001 Gray Wireless RV Leveler, Compact Size - 6.2 x 9.4 x 2.4 inches by Brian Micheals

Don't buy, it's a waste of money. When the trailer is level, two lights will flash to indicate that the rear of the trailer needs to be raised. I took it indoors and placed it on a counter with three levels of carpentry. After checking the meter's level, I turned the unit on as instructed. The device indicated that the left side of my meter was low. I added paper under the device until it showed the level. The extrapolated result showed I had to raise this side of my counter 2 FEET! I was looking for a way to fix the calibration. There is none! garbage