HUHAO Multi Angle Ruler Digital Angle Finder Protractor Stainles

Features
1.Great Locking Feature - The tight/loose knob works well and you can set it to the tightness that suits your use.
2.Low Power Consumption - Simple, precise and fast with working more than 2000 hours with only one piece of standard coin battery.
3.Durable 304 Stainless Steel Body - Comes with perfect quality stainless steel, which ensures years of using.
4.Automatically shut down after 6 minutes of inactivity, saving energy.
5. HD Clear reading.

Specifications
Material: Stainless steel
Length: 200mm 300mm 500mm
Measuring range: 0~360¡ã
Resolution: 0.1¡ã
Accuracy: 0.3¡ã
Working temperature: 0~50¡æ
Working humidity: ¡Ü85%RH
Battery: 3V lithium battery (INCLUDED)

Notes
1.Do not move the screws and components at random
2.Be careful to use the ruler and avoid cut yourself
3.Do not give the product to the child alone
4.Please handle your angle meter with care, use even strength to rotate the Rotate Arm, and do not use too much strength