For confusion about the two switches, please see the Warm Tip at the end.
Specifications:
Laser: Red Beams
Laser Class: Class 2 (IEC/EN60825-1/2007) <1mW power output
Laser Wavelength: 635±5nm
Leveling Accuracy: ±1/8 In, at 30Ft
Leveling/Compensation Range: 4°±1°
Working Distance (Line): 16.5 feet(Indoor)
Opearting Time: Approximately 12Hours
Power Source: 2× AA Batteries(Included)
Operation Temperature Range: 14℉- 122℉(-10℃–+50℃)