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Laser Distance Meters

These are the QM Quick Measure laser distance meters that are the first family of distance meters designed specifically for the tough construction site environment. The housing are made of durable engineered plastic with extensive use of protective rubber overmold. The electronics have been cleverly isolated resulting in a product that survives a drop and the typical rough conditions found on jobsites. They Include QM95, QM55, QM20 and QM10.

 

Key Features Include:

  • Tough and rugged:  Stands up to tough jobsite conditions
  • Designed for construction: Drop specification of 1.5 meter (5 feet)
  • Quick: Fast measure response time
  • Accurate: Accuracy is maintained over the entire measure distance
  • Sealed against dust and water: If it gets dirty, simply wash off
  • QM 55 is suitable for Area and volume functions, Easy quick calculations of common tasks Pythagoras functions, it provides indirect height or width for inaccessible areas

Table 1 summarizes the key features and differences.

 

Table 1: Key Feature Differences

Specification QM10 QM20 QM55 QM95
Range 0.1 m to 30 m 0.1 m to 50 m 50 m 200 m
Accuracy ± 2.0 mm typical (± 1/12 in) ± 2.0 mm typical (± 1/12 in) ± 1.5 mm (± 1/16 in) ± 1.0 mm (± 1/24 in)
Unit of Measure m, ft, in, ft-in m, ft, in, ft-in m, ft, in, ft-in m, mm, ft, in, yds
Automatic Shut Off Laser – 1 minute

Product – 10 minutes

Laser – 1 minute

Product – 10 minutes

3 minutes 10 minutes
Battery Life 5,000+ measures 5,000+ measures 5,000+ measures 8,000 measures
Power Supply 2 x AAA x 1.5V 2 x AAA x 1.5V 2 x AAA 1.5V 2 x AA 1.5V
Power Indication LCD 3 segments LCD 3 segments LCD 3 segments LCD 4 segments
Drop Performance Not Indicated Not Indicated 1.5 m (5 ft) 1.5 m (5 ft)
Dust & Water Resistance Not Indicated Not Indicated IP54 IP54
Laser Type / Power 620-690 nm visible red / <1 mW max 620-690 nm visible red / <1 mW max 635nm visible red/<1 mW 635nm visible red/<1 mW
Dimensions 43 x 24 x 110 mm (1.7 x 0.9 x 4.3 in) 48 x 24 x 116 mm ( 1.9 x 0.9 x 4.6 in) 52 x 28 x 125 mm

(2.0 x 1.1 x 4.9 in)

62 x 28 x 120 mm

(2.4 x 1.2 x 4.7 in)

Weight with Batteries 74 g (2.6 oz) without batteries 79 g (2.8 oz) without batteries 187 g (6.6 oz) 217 g (7.7 oz)
Warranty 2 Years 2 Years 3 Years 3 Years
Functions     QM55 QM95
Usage Measure, Area, Volume, memory 10 measures Measure, Area, Volume, Pythagoras theorem,

memory 50 measures

Indoor Indoor / Outdoor
Single Measure     Yes Yes
Continuous Measure     Yes Yes
Add / Subtract   Yes Yes Yes
Side Measure Button       Yes
Extension Tab Auto Detected       Yes