Product Manual
©2016 Johnson Level & Tool - Rev. 1 23
9. Technical Specifications
Laser Wavelength 635nm±10 (40-6685, 40-6687 &
40-6688 (dots only))
Laser Wavelength 532nm±10 (40-6688 lines)
Laser Classification Class IIIa
Maximum Power Output ≤5mW
Accuracy ±1/8"/50 ft. (±1mm/10m)
Interior Range Dots: Up to 200 ft. (all models)
Lines: Up to 150 ft. (40-6685 & 40-6687)
Up to 200 ft. (40-6688)
Exterior Range Up to 300 ft. (90m) with detector
(included with 40-6687)
Self-Leveling Range ±4°
Power Supply 3 “AA” alkaline batteries (included)
Battery Life Approx. battery life 20 hours continuous use
Dimensions 4.803" x 2.835" x 4.567"
(122 x 72 x 116mm)
Weight 5.164 lbs. (0.6 Kg)
Working Temperature 14° F to 113° F (-10° C to +45° C)
(40-6685 & 40-6687)
32º F to 104º F (0° C to +40° C)
(40-6688)
Center Screw Thread 5/8" – 11; 1/4" – 20
IP Protection 54
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