Working range	15 m<br>Accuracy	± 0.5 mm/m <br>Laser diode	635 nm, &lt; 1 mW <br>Laser class	2 <br>Self-levelling range	± 4° <br>Power supply	4 x 1.5 V LR6 (AA) <br>Tripod thread	1/4" <br>Weight, approx.	0.5 kg