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Product name: Digital Pitch Gauge
Product code:HSM-131
Specifications:
Resolution: 0.1 °
Dimensions: 59 x 38 x 15  mm
Weight: 57 g
Operating voltage: 3V/DC (2 button cell CR2032
Power consumption: 3 mA

Features:
Mounting plate with magnets (detachable blade grips)
Up to 750mm blades (use from 200 to 800 size helicopters)
Fast and accurate measurement
Hold function
Low battery indicator
Calibration function
Auto rotating display
Auto power-off