Description：

Using this digital angle tractor, you can measure the angle between two faces, not only in earth gravity direction. Press Angle key at the first face, and then rotate slowly and keep the rotation to another testing face, It will then show the angle once you not move the unit.  

Features: 

High accuracy ±0.1°, high resolution 0.02°. 

Li-lon battery rechargeable, durable. 

High resolution, fessional measurement. 

Single and dual , convenient to measure the angle. 

Dual and single with user friendly LCD display angle. 

V shape case for easy to fit at the corner or pipe. 

With 5 Side Magnetic base, audible alarming at settable angle . 

The unit could be charged by connecting the USB cable to the unit and a computer's USB port. 

Specifications: 

Color: Yellow 

Accuracy: 

0 to 20°: ± (0.1°)  

20 to 70°: ± (0.2°)  

70 to 90°: ± (0.1°)  

Measuring Single : 360° , Dual : ±40°  

Resolution: 0.02°  

Response time: <0.4 second 

offset drift angle per °C: 0.0058°(typical)  

Operating temperature: 0 to 50°C (32 to 122℉) 

Storage temperature: -10 to 60°C (14 to 140℉) 

User Interface: Mono-color LCD with backlight  

Supply Power: Rechargeable Li-Polymer 3.7V  

Charger port: 5V 500mA Mini type-B USB port  

Power Consumption: tandby: 10uA, Operation: 20mA  

Standby Battery Life: 4000 hours  

Operating Battery Life: 40 hours  

Magnetic Base: set on 4 corners  

Magnetic Force: N48  

Item Size: Apx 7 * 7 * 2.8cm / 2.7 * 2.7 * 1.1in 

Item Weight: Apx 118.3g / 4.2oz

Package List: 

1 * Digital Angle Protractor 

1 * AC Adapter 

1 * User Manual