Skip to content
Catalog
Bosch

GLL40-20G

2 class
laser class
0.8 mm/m
levelling accuracy
6,562 ft (2,000 m)
max altitude
40 °C
operating temperature max
4 degrees
self levelling range
0.4 lb (0.2 kg)
weight

Documents

Operator Manual ↓
Official ✓ Verified source Jul 2026

Full specifications

ConnectedNo
Height in3.2 "
IP RatingIP 40
Includes(1) GLL40-20G Green-Beam Self-Leveling Cross-Line Laser (1) MM 2 Flexible Mounting Device (2) AA Batteries (1) Pouch
Laser Beam ColorGreen
Laser DiodeClass 2, 500-540 nm
Length in3.2 "
Leveling TypeSelf-Leveling, Up to 4°
MaterialPlastic composite
Mount Threading1/4-20
Operating Temperature41° F / 5° C ~ 104° F / 40° C
RangeUp to 40-ft.
Weight0.5 lb (0.2 kg)
Width in2.3 "
Works WithTripods, BT 150, Telescoping Pole System, BP350, Grade Rods, GR 16, GR500, Mounts and Positioning Devices, BM 1, BM3, LB10, MM 2

Every figure is traced to the manufacturer’s published data. ↗ opens the source.

Export for Heyquip

Populate your Heyquip store's product page with this model's specs, images, and cited documents.

Is this your equipment? Verify your specs →

Sources

← All Laser Level

Admin Open in admin →

Fix classification