For Red and Green Pulsed Lasers: Turning on the laser level's pulse mode allows the laser receiver to detect red and green pulsed laser beams in low-light conditions at distances of up to 50 meters. Double Horizontal Bubble Design: This product is also equipped with horizontal bubbles on the front and top for more accurate leveling. Outdoor/Remote Use: When the laser is working outdoors or at a distance, the human eye can not clearly observe the laser signal, using a laser receiver can help you quickly and accurately detect the laser signal. Long Battery Life: The receiver has a built-in 1000mAh battery that provides you with approximately 20 hours of operating time. In addition, there is an auto shut-off feature that powers down the unit after about 10 minutes of inactivity to extend battery life. Ease of Use: With its compact and comfortable grip design, the laser level receiver is highly portable and easy to handle. It also comes with a convenient clamp holder, which allows you to securely attach it to various surfaces, poles, or tripods. Model: LRC-30 Display Screen: LCD Leveling Accuracy (high precision): 2mm Leveling Accuracy (low accuracy): 3mm Laser Receiving Window Width: 13mm Working Accuracy: 50m (Typically) dependent on the light source Horizontal Bubble Accuracy: 30inch/2mm Working Hours: 20 hours Automatic Shutdown (no signal detection): 10min Battery Type: 1000mAh lithium battery Operating Temperature: -10-+50 Storage Temperature: -20-+70 Colour:As Shown Material:Plastic Package Contents: 1 x Laser Level 1 x USB Cable 1 x Fixture Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.