Features:_x000D_ 1. This digital pitch gauge offers simplicity, high accuracy and ultra fast pitch angle measurement._x000D_ 2. Mini in size and lightweight, easy to carry._x000D_ 3. Fit for usual blades of RC helicopter models._x000D_ 4. The pitch gauge is powered by 2 button batteries (not included) and allows blades from 200 to 800 mm._x000D_ 5. With hold function, low battery indicator, calibration function, auto rotating display, auto power-off function._x000D_ _x000D_ Specification:_x000D_ Condition: Brand _x000D_ Material: Plastic_x000D_ Color: Black_x000D_ Size: Approx. 122 * 68 * 20mm / 4.8 * 2.68 * 0.79inch_x000D_ Weight: Approx. 77g_x000D_ Battery: 2 Button Batteries CR2032 3V (Lithium 210mAh) (Not Included)_x000D_ Current Consumption: Max. 3mA_x000D_ Operating Temperature: 0 to +40 Celsius_x000D_ Operating Voltage: 3V/DC (CR2032 x 2)_x000D_ Resolution: 0.1 Degree_x000D_ _x000D_ Package List:_x000D_ 1 * Digital Pitch Gauge (Batteries Not Included)_x000D_ 1 * Manual 1This digital pitch gauge offers simplicity, high accuracy and ultra fast pitch angle measurement 2Mini in size and lightweight, easy to carry 3Fit for usual blades of RC helicopter models 4The pitch gauge is powered by 2 button batteries (not included) and allows blades from 200 to 800 mm 5With hold function, low battery indicator, calibration function, auto rotating display, auto power-off function