FPM FG-L30 Zenith + Nadir Optical Plummet

$7,540.00 ETA: 23/07/2026

FPM FG-L30 ZENITH and NADIR Optical Plummet.
Easy to level using 20“ reversion bubble level.
Mounts easily onto tribrachs.
Designed to find upward and downward plumb lines over medium distances.
Ideal for use in high-rise building constructions, industrial buildings or mine shafts.

The FG-L30 is designed for plumb lines of medium precision. With a precision of + 1 mm / 30m, 9x magnification, and included reversion bubble level of 20"/2mm, the device is ideal for use in the field of construction above and below ground as well as surveying.

Use cases include:

exact positioning, nadir and zenith plumbing
transferring reference points upwards or downwards
integration of reference points into the plumb line
verification of deviations from the plumb line

Ideal for use in:

used for the erection of high-rise buildings, smokestacks, drilling rigs, cooling towers, telecommunication towers, bridges, tunnels and shafts
special measurement tasks in industrial surveying and mine surveying
monitor deformation processes at buildings

Measuring accuracy
Mean square plumb line error at 100 m	+1mm
Bubble level	20" / 2 mm
Telescope
Image position	Upside down Side-inverted
Magnification	9 x
Shortest target distance	0,4 m
free objective diameter	20mm
Temperature
Operating range	-25°C.+45°C
Instrument
Dimensions	140x190mm
Weight	2,2 kg

Datasheets
	FPM FG-L30 Zenith + Nadir Optical Plummet - Datasheet

Related Categories

Brand: FPM Plummets | Code: FG-L30
APN: 9319499489410 | Supplier Code: FG-L30

At a glance

FPM FG-L30 ZENITH and NADIR Optical Plummet.
Easy to level using 20“ reversion bubble level.
Mounts easily onto tribrachs.
Designed to find upward and downward plumb lines over medium distances.
Ideal for use in high-rise building constructions, industrial buildings or mine shafts.

Related Categories

Use cases include:

exact positioning, nadir and zenith plumbing
transferring reference points upwards or downwards
integration of reference points into the plumb line
verification of deviations from the plumb line

Ideal for use in:

used for the erection of high-rise buildings, smokestacks, drilling rigs, cooling towers, telecommunication towers, bridges, tunnels and shafts
special measurement tasks in industrial surveying and mine surveying
monitor deformation processes at buildings

Measuring accuracy
Mean square plumb line error at 100 m	+1mm
Bubble level	20" / 2 mm
Telescope
Image position	Upside down Side-inverted
Magnification	9 x
Shortest target distance	0,4 m
free objective diameter	20mm
Temperature
Operating range	-25°C.+45°C
Instrument
Dimensions	140x190mm
Weight	2,2 kg

Datasheets
	FPM FG-L30 Zenith + Nadir Optical Plummet - Datasheet

FPM FG-L30 Zenith + Nadir Optical Plummet

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