FEATURES: Self-levelling multi line laser is accurate to ?0.3 mm/m in levelling applications, Self-Levelling up to 4 degrees surface angle with automatic out of level indication; marks a levelled line in seconds, 3 button operation and low battery indication for ease of use, An adjustment dial for fine line movement (vertical & side), Built in magnetic pivot bracket mounts easily on metal surfaces, Over molded housing helps maintain calibration under jobsite conditions, Includes 4 x AA batteries for 25 hours runtime, Kit box protects unit and helps maintain calibration when stored in gang box, Works with DE0892 detector up to the distance of 50 meters. SPECIFICATIONS: Laser class: 2; <1mW, Levelling Accuracy: +/-0.3 mm/m, Number of beams: 3, Direction of beams: vertical/horizontal/side, Indoor Visibility Range: 15 m, Self-Levelling Range: +/-4 ?, Power Supply: 6.0V ? 4 x AA, Tripod connection: 1/4?, Width: 80 mm, Length: 135 mm, Height: 145 mm