Description: Self-leveling mode; Manual mode. Self-leveling mode: Once the pendulum unlocked, self-leveling mode is enabled. The laser beam will beep as well as the laser beam blink fast when the tool is out of self-leveling range ±4°. Manual mode: When the pendulum locked, the laser tool can be placed for use at any angle. The laser beam will blink every 3-5 seconds to remind you it's not self-leveling now. Pulse Mode: Turn on pulse mode: After power on; switch the pendulum to unlocked position, short press the V button to turn on the pulse mode. The indicator will light up in blue. Pulse mode extends the working range up to 200Ft. in brighter working conditions when using with Huepar Line Laser Receiver. Keep the pulse mode on when using with a receiver. It is compatible with Huepar LR-6RG;LR-5RG Line Laser Receiver only. Specifications: Type: 16 Lines. Laser Beam Color: Green. Expanded Angle: 2H360°/2V360°. Laser Class: Class 2. Laser Wavelength: 520nm. Leveling Accuracy: ±3mm/10m. Leveling/Compensation Range: 4°±1°. Self-leveling Time: ≤3s. Working Distance (Line): 40m, ≥50m with level 132 Ft, ≥165 Ft with level. Power Source: Li-lon battery (Built-in). IP Rating: IP54, waterproof, dustproof and shockproof, reliable and tough. Operation Temperature Range: 14℉- 122℉(-10℃-＋50℃). Storage Temperature Range: -4℉- 158℉(-20℃-＋70℃). Mount Size: 1/4'-20. Package Includes: 1 x Laser Level. 1 x Magnetic Base. 1 x Wall Hanging Plate. 1 x Remote Control. 1 x Power Adapter. 1 x Green Glasses. 1 x Hard Carrying Case. 1 x User Manual