Topcon RL H5B Self Leveling Horizontal Rotary Laser Level 1021200 73 1300ft Range, ±1 8" Accuracy, 100hr Battery IP66 Construction & Grading Kitchen Safety Interconnection Supports up to 24 Interconnection Supports up to 24 Kidde devices (18 initiating devices + 6 accessories) Test Features Test button for smoke and CO alarm simulation The unique design provides more storage than even our traditional Knife Block insert and with its simple drop in installation Long Range Precision: Covers an impressive 400 m diameter with ±20 arc second accuracy Category Details General RL H5B Compact Construction Laser Technology Electronic Self Leveling Performance Optimized for flat plane construction tasks Range 1312' diameter Accuracy ±20 arc seconds Self Leveling Range ±5 Degrees Durability Built for job site toughness Rating IP66 – Dust and water resistant Power and Battery Efficient and long lasting battery options Battery Type 4 D cell alkaline batteries Battery Life Up to 100 hours Accessories Includes everything necessary for setup Components LS 80L sensor