Optical multimeter or optical power meter Ermenrich NetGeeks NU40 – an essential tool for professionals who install and maintain fiber-optic communication lines (FOCL). The device allows you to measure the absolute power find losses between two points in the line locate faults and indicate them with a red light (VFL function). There is a light source test function.

The device is equipped with FC SC ST connectors and can work with single-mode and multi-mode cables. You can adjust and select the operating mode with the buttons. The measurements are displayed on the built-in screen which has a backlight for low-light conditions. The multimeter is powered by standard batteries (not included).

Key features:

  • Supports single-mode and multi-mode cables FC SC ST connectors
  • Measuring absolute and relative optical power six wavelengths
  • Light source test function two wavelengths
  • VFL function – red light indicates problem areas in the cable
  • Powered by standard batteries auto-off function to save battery power

The kit includes:

  • Transmitter
  • Pouch
  • Cotton swabs
  • User manual and warranty card
Brand Ermenrich
Warranty years 5
EAN 5905555017037
Package size (LxWxH) cm 6x19x15.5
Shipping Weight kg 0.43
Optical power meter wavelength nm 850/1300/1310/1490/1550/1625
Fiber connector type FC SC ST
Maintained cable type single-mode (SM) multimode (MM)
Units of measurement dB dBm W
Power detection range dBm -50 — 26
Option to set the reference level yes
Visual fault locator (VFL) yes
Visual fault locator (VFL) wavelength nm 650
Light source test yes
Light source wavelength nm 1310/1550
Display FSTN LCD
Display backlight yes
Power supply 3 AAA batteries (not included)
Low battery status indicator yes
Auto power off yes
Operating temperature range °C -10 — 60
Operating humidity range % 20 — 70
Type optical multimeter

Returns Policy

We have a 14-day return policy. If you are not satisfied with your purchase, please return it in its original packaging and be sure to put the original product packaging inside the shipping box to avoid any damage..

All items must be in their original condition and unused. The value of your purchase will be refunded. .

Shipping charges will not be refunded.

If the return is due to a defective product, you may be compensated for the return shipping.

Please contact us for more details if you need to make a return..


- From 0 to 2 kg - shipping cost: 12,50 euros.

- From 2.001 kg to 30 kg - shipping cost: 17,00 euros.

- From 30,001 kg - shipping cost: 30,00 euros.

In case of collection at our warehouse or resale points - the shipping is free.

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