Laser diode 635 nm, &lt; 1 mW <br>Measurement range	0.05 – 50.00 m<br>Weight, approx.	0.1 kg<br>Measurement time, typical	&lt; 0.5 s <br>Units of measurement	m/cm, ft/inch <br>Laser class	2 <br>Measurement accuracy, typical	± 1.5 mm <br>Measurement range of incline measurement	0 – 360° (4 x 90°) <br>Measuring accuracy (typical)	± 0.2° <br>Measurement time, max.	4 s<br>Power supply	2 x 1.5 V LR03 (AAA) <br>Automatic deactivation	5 min<br>Memory capacity (values)	30 <br>Battery lifetime, individual measurements, approx.	10,000 <br>Battery lifetime, operating time, approx.	2.5 h<br>Dust and splash protection	IP 54 <br>Tripod thread	1/4" <br>Data transfer	Android devices with Bluetooth™ 2.1 or higher, iOS devices with Bluetooth™ Smart technology <br>Supported Android devices	Smartphone with Android 4.3 or higher, Tablet with Android 4.3 or higher <br>Supported iOS devices	iPad (3rd Gen. or higher), iPad Air (1st Gen. or higher), iPad mini (1st Gen. or higher), iPhone 4S or higher