Features The ruler is made of stainless steel material, practical and durable. Designed with locking knob for locking angle at any convenient position. Ruler and protractor 2 in 1 combination for easy measuring. Quick and easy to read the measurement with LCD clearly display. Digital calculation system makes angles and length measurements more quickly and accurately. Features: The ruler is made of stainless steel material, practical and durable.Designed with locking knob for locking angle at any convenient position.Ruler and protractor 2 in 1 combination for easy measuring.Quick and easy to read the measurement with LCD clearly display.Digital calculation system makes angles and length measurements more quickly and accurately. Specification: Material: Stainless steel Measurement Range: 0-360°, 10-390mm Resolution: 0.05°Accuracy: ±0.3°IP Rating: IP54Operating Temperature: 5℃~45℃Operating Humidity: ≤85%RHBattery: 3V CR2032 Battery Weight: 228g / 8oz (approx.) Package list: 1 * Protractor Ruler Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List