Feature: 1. 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. 2. Double Horizontal Bubble Design: This product is also equipped with horizontal bubbles on the front and top for more accurate leveling. 3. 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. 4. 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. 5. 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. Specification: Specifications: Model: LRC-30 Material: ABS 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: 30"/2mm Working Hours: 20 hours Automatic Shutdown (no signal detection): 10min Battery Type: 1000mAh lithium battery Operating Temperature: -10℃~+50℃ Storage Temperature: -20℃~+70℃ Item Size: 139.5 * 63 * 25.6mm / 5.49 * 2.48 * 1.01in Item Weight: 155.2g / 5.47oz Package Weight: 317g / 11.18oz Package Size: 16.5 * 7 * 7cm / 6.5 * 2.76 * 2.76in Package List: Package List: 1 * Laser Receiver 1 * USB Cable 1 * Lanyard 1 * Fixture 1 * User Manual (English)