Ruler Angle Laser Level

Ruler Angle Laser Level Function: 1) Can give off two parallel laser line. 2) Can give off a benchmark laser line and a angle line. 3) Laser benchmark line power & laser angle line power can be use separately. Length: 1) 40cm 2) 60cm 3) We also can supply the special length as your request Technical Specification: 1) Laser wavelength: 635nm-670nm 2) Laser power: Less than 1mw 3) Laser class: 2 4) The Accuracy of angle-measuring: +/-1 degree 5) Laser parallel parallelism: +/- 0.5 degree 6) Benchmark laser power : 3V DC (2 x AAA1.5V Batteries) 7) Angle laser power : 4.5V DC (button battery)