Features: l It is compatible with the pitch test of 250-700 helicopters, and can also test the steering gear arm angle, as well as any other application requiring angle measurement l LCD display, high brightness backlight, can also be used at night l The working current is 6MA, and it will shut down automatically without operation for 3 minutes l It can be used as angle gauge and level gauge, automatic flip screen function (inner three axis gyro) l Adapt to 250~800mm main blades, have sensor updating and lock function Specification: l Working Voltage: 3.0 V/DC l Battery :CR 2032 li-po x2 220MAH l Max.Current Consumption: 6mA l Resolution Rate: 0.1 degree l Working Temperature: 0-40°C l Size: 10.8cm x 5.3cm x 1.6cm l Weight: 36g l Detection Angel: ±90 degree l Blades width allows: 20mm~75mm Package Includes: l 1x Digital Pitch Gauge