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Item specifics
  • Brand Name: VOTK
  • Model Number: FHM2A01
Product Description

FHM2A01 Fiber Optic Multimeter Optical Power Meter+Optical laser Light Source 1310/1550nm



The FHM series optical loss test set combines a power meter and a dual- wavelength laser source,for optical fiber network installation and maintenance. With the large capacity of data storage, it’s very convenient for field testing and transferring the test results to PC through USB interface.


Two wavelengths (1310nm and 1550nm) combine in one port;
The output of laser source stables at -5dBm;
Laser source supplies CW and modulated 270Hz, 1KHz, 2KHz output;
Laser source transmits wavelength recognition code;
Optical power meter displays linearity and logarithmic optical power values;
Automatic shifting of measurements in optical power meter;
Automatic wavelength recognition and shifting to the measured wavelength in optical
power meter;
Storage of 999 sets of tested data in optical power meter;
Screen backlight;
Rechargeable batteries;
LCD displayer supplies;
Auto-off at low voltage;
Auto-off after 10-min no operation(default);
Display of battery capacity; 
Auto shut off of charging
Transmitter optical power measurements( dBm and W)
Fiber-link loss testing (dB)
Componet/ Device insertion loss testing( dB)
Fiber indentifications with 270 Hz, 1 KHz, 2 KHz signals
Fiber intallation and maintenance applications
FTTx: testing of passive optical networks.


    FHM2A01 FHM2B01
Optical Power Meter Calibration wavelength(nm) 850/1300/1310/1490/1550/1625
Connector Interchangeable FC/SC/ST for PC
Data storage(items) 999
Ref.Value Yes
Display units dB/dBm/mW/uW
Display precision(dB) 0.01
Accuracy ±5%±1nW
Wavelength recognition FHM2A01:input power≥-40dBm ,FHM2B01:input power≥-20dBm
Tone detection 270Hz/1KHz/2KHz(input power≥-40dBm )
Measuring range(dBm) -70 to +10 -50 to +26
Optical Laser Source Output wavelength(nm) 1310/1550
Connector Interchangeable FC/SC/ST for PC
Modulation frequencies 270/1K/2K Hz
Output power -5dBm±0.5dB
Stability long-term(1h) ±0.1dB@1310/1550nm
Stability short-term(15min) ±0.05dB@1310/1550nm
Wavelength recognizing code Yes
General Specification Auto power off
Power supply 2pcs *NiHM 1.2V,2000mAh;AC/DC Adaptor
PC interface USB
Battery life >100Hours(laser off)
Storage temperature -20°C~+70°C
Operating temperature -10°C~+50°C
Relative humidity <90%(Non-condensing)
Dimension(mm) 168L×76W×43H
Weight(Gram) 310


Note: Rechargable Batteries not included for safety. If you need FHM2B01 ,pls leave a message , or default FHM2A01.





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Import tax:

We are not responsible for any custom duty or import tax.

the buyer responsible for import tax, if you wouldn’t like to pay import tax by yourself, please stop to give us order. Aliexpress also ask buyer responsible for import tax, even you give us disputer for it and we couldn’t pay it for you.


1.  Item will be sent to the order address, please confirm with us address before give us order, please offer us full address and correct address with telephone No before give us order.

2.  if you want to change address, please change it in aliexpress before give us order, we only send goods to the address same as order.

3. Regarding delivery time, we couldn’t guarantee for you, because we are not shipping company and couldn’t control shipment indeed, only check with shipping company in time.. if you need goods urgently, we suggest you choose DHL FEDEX UPS etc instead of china post mail HK post mail etc.

4.   we will do our best to arrange shipment once get your order, usually it need 3-5 days to delivery goods except some factory is very far or some goods is out of stock.

5.   all goods will be writen GIFT in custom declaration

6. please check the parcel carefully before signature, if you find it broken or shorts of parts, please refuse to take goods or ask shipping company give you proof or refund.


We will refund you for items returned within 3 days of you receiving them if you find the goods is different from the goods you order in our store. A full refund will be given if items are returned in their original condition.
Merchandise which is damaged or missing components is not refundable.
Buyers are responsible for return shipping with proper packaging.
On receiving items, we will refund you or exchange for you at once.


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If you are satisfied with our items. please leave us positive feedback, we will offer you discount or gift for next order.
Contact us before leaving any negative of neutral feedback.
We will work with you to slove any problem.

Usually we stop to service of customer who give us negative feedback.




Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 30cm x 20cm x 10cm (11.81in x 7.87in x 3.94in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 30cm x 20cm x 10cm (11.81in x 7.87in x 3.94in)
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