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Johnson Dot Laser Levels

>> Dot Laser Applications

The Dot Laser Level line is your best choice when you want to find a level point, or points at 90 degrees between a wall, the floor and the ceiling.

Electricians use this laser level for accurate placement of lighting fixtures.

Carpenters use this Laser Lever for layout of interior walls and beams.

Most of these dot laser levels are self leveling, so you get an accurate measurement instantly, even on uneven ground. Johnson Dot laser levels are easy to see because of the concentrated beam for all indoor construction applications.

Johnson dot laser levels are available in three-beam, and five-beam dot laser level models to meet the needs of every construction application.

Common uses for a dot laser level are setting foundations and footings, alignment of concrete forms, and layout of interior walls, electrical wiring & outlets, plumbing pipes, cabinets, countertops and MUCH more.

Dot Laser Level Comparison Chart:

	40-6646	40-6680	40-6690	40-6184
Number of Beams	3	5	1	3
Leveling Method	Self-Leveling (Pendulum)	Self-Leveling (Pendulum)	Automatic (Electronic)	Manual (Vials)
Laser Wavelength	650nm +/-10nm (Red)	650nm +/-10nm (Red)	635nm +/-10nm (Red)	650nm +/-10nm (Red)
Laser Classification	Class II	Class IIIa	Class IIIa	Class IIIa
Max Power Output	<=1mW	<=5mW	<=5mW	<=5mW
Accuracy	+/-1/8"/30ft.	+/-1/8"/50ft. (+/-2mm/10m)	+/-1/16"/100-ft. (+/-5mm/100m; +/-10 arc sec)	+/-1/8"/50ft. (+/-1mm/5m)
Interior Range	Up to 100ft. (30m) depending on light conditions	Up to 200ft. (60m) depending on light conditions
Self-Leveling Range	+/-5 degrees	+/-4.5 degrees	+/-5 degrees
Power Supply	2 "AA" alkaline batteries	3 "AA" alkaline batteries	NiMH rechargeable battery pack, 6.4V battery adaptor, 12V car charger or 4 "D" batteries	3 "AA" alkaline batteries
Battery Life	Approx. 20 hrs w/ alkaline batteries	Approx. 20 hrs w/ alkaline batteries		Approx. 50 hrs w/ alkaline batteries
Dimensions (approx)	3.6" x 2.6" x 4.5"	3.2" x 3.9" x 4.0"	5.2" x 15"	9.5" x 2.2" x 1"
Weight	9.9 oz	1.101lbs.	13.2 lbs	1.653 lbs
Working Temperature	32F to 104F	14F to 113F (-10C to +45C)	-4F to 122F (-20C to 50C)	14F to 113F (-10C to +45C)
Center Screw Thread	1/4"-20	5/8"-11, 1/4"-20		1/4"-20
IP Protection Class	50	55	68 Nitrogen Purged
Warranty	2 Years	3 Years	3 Years	3 Years

Tripods, Laser Mounts and Grade Rods

Dot Lasers:

Laser Plumbob

Johnson Rotary Laser Levels:

Self-Leveling Rotary Laser Level 40-6515

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