Fluke 416D Laser Distance Meter

Technical specifications
Range (for extended distances, use a target plate) Fluke 411D 0.1 m to 30 m
(0.33 ft to 100 ft)
Fluke 416D 0.05 m to 60 m
(0.16 ft to 200 ft)
Fluke 421D 0.05 m to 100 m
(0.16 ft to 330 ft)

Measuring accuracy Fluke 411D* ± 3 mm (0.118 in)
Fluke 416D** ± 1.5 mm (± 0.059 in)
Fluke 421D ± 1.5 mm (± 0.059 in)

Laser class Fluke 411D Class II
Fluke 416D Class II
Fluke 421D Class II

Laser type Fluke 411D 635 nm, < 1 mW
Fluke 416D 635 nm, < 1 mW
Fluke 421D 635 nm, < 1 mW

Automatic power off Fluke 411D after 180 seconds
Fluke 416D after 180 seconds
Fluke 421D after 180 seconds

Continuous measurement Fluke 411D Yes
Fluke 416D Yes
Fluke 421D Yes

Addition/subtraction Fluke 411D Yes
Fluke 416D Yes
Fluke 421D Yes

Battery life Fluke 411D up to 3,000 measurements
Fluke 416D up to 5,000 measurements
Fluke 421D up to 5,000 measurements

LCD illumination Fluke 411D No
Fluke 416D Yes
Fluke 421D Yes

Data locations Fluke 411D No
Fluke 416D 10
Fluke 421D 20

Min/Max Fluke 411D No
Fluke 416D Yes
Fluke 421D Yes

Audible feedback Fluke 411D No
Fluke 416D Yes
Fluke 421D Yes

Pythagoras (Indirect measurement) Fluke 411D Simple
Fluke 416D Full
Fluke 421D Full

Ingress protection Fluke 411D IP40
Fluke 416D IP54
Fluke 421D IP54

Dimensions Fluke 411D 123 mm x 50 mm x 26 mm
(4.84 in x 1.97 in x 1.02 in)
Fluke 416D 135 mm x 46 mm x 31 mm
(5.31 in x 1.81 in x 1.22 in)
Fluke 421D 127 mm x 52 mm x 29 mm
(5.00 in x 2.06 in x 1.13 in)

Weight Fluke 411D 150 g (5.29 oz)
Fluke 416D 110 g (3.88 oz)
Fluke 421D 125 g (4.40 oz)

Temperature range Fluke 411D Storage: -25 °C to 70 °C (-13 °F to 158 °F)

Operation: 0 °C to 40 °C (32 °F to 104 °F)
Fluke 416D Storage: -25 °C to 70 °C (-13 °F to 158 °F)

Operation: 0 °C to 40 °C (32 °F to 104 °F)


Fluke 421D

-25 °C to 70 °C (-13 °F to 158 °F)

0 °C to 40 °C (32 °F to 104 °F)

Operating altitude
(ISO 9022) Fluke 411D up to 3500 m
Fluke 416D up to 3500 m
Fluke 421D up to 3500 m

Storage humidity
(at 35 °C) Fluke 411D maximum 85 % for 24 h
Fluke 416D maximum 85 % for 24 h
Fluke 421D maximum 85 % for 24 h

Batteries Fluke 411D AAA (2)
Fluke 416D AAA (2)
Fluke 421D AAA (2)



* In favorable conditions (optimal target surface, room temperature) up to 10 m (33 ft). In unfavorable conditions, such as intensive sunshine, very weakly reflecting target surface, or large temperature fluctuations, measuring accuracy may deteriorate to approx. ± 0.25 mm/m (± 0.003 in/ft) for distances above 10 m (33 ft).

** In favorable conditions (optimal target surface, room temperature) up to 10 m (33 ft). In unfavorable conditions, such as intensive sunshine, very weakly reflecting target surface, or large temperature fluctuations, the deviation over distances 10 m (33 ft) can increase by approx. ± 0.15 mm/m (± 0.0018 in/ft).