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Item specifics
  • Brand Name: VOTK
  • Model Number: 305A
  • distance: 5km
Product Description


Product Features
User self-calibration function
Linear (mW) and nonlinear index (dBm) displayed simultaneously
Unique FC / SC generic interface , without complicated conversion
The optional automatic shutdown
Optional on / off the display backligh
Wavelength Range
800 ~ 1700
Probe Type
Photosensitive surface diameter (um)
Power Measurement Range
-70 ~ +3
± 5%
Standard wavelength (nm)
850,1300,1310,1490,1550 1625
Display Resolution
Linear Display : 0.1% of the number display : 0.01dBm
Operating Temperature
-10 ~ +60
Storage Temperature
-25 ~ +70
Automatic shutdown time (min)
Battery operating time (h)
Power supply
5 battery   without  BATTERY
Wavelength   650nm±10nm
 Emitter Type    FP-LD laser
 Output power   1mW
 Working mode  Both CW and Pules available
 Operating  temperature   -10~+45 °C 
 Storage  temperature   -40~+70 °C


 Working hours    60
packing included
1pcs optical power meter with 1mw red light source
1pcs SC connector and 1pcs carry bag
without any battery
you need buy battery by yourself 
there are blue and orange color for choose, we send goods to you in the color we have it on stock now
orange 305A part
orange 305
orange 305A1
orange 305A2
orange 305A2 color
orange 305A2 color01


We only accept escrow by via WEB money(WM), TT,Western Union, QiWi wallet, Boleto and credit card here, it is safe for you and us together


We depend on our customer satisfaction to succeed. Your feedback is extremely important to us.
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.

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 the 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 written “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.

Warranty &Maintenance:                           

We provide 1 month replacement and 12 months maintenance warranties. Items can be replaced during the first month or maintained for the first year.Merchandise which is damaged or missing components is not refundable.
Buyers are only responsible for the return shipping fees for warranty items.(In most cases, buyer will only have to return the problem components rather than the entire package.).
Before returning items, please make sure you get our (the seller’s) return address, and write “gift” on the delivery detail sheet. Please use regular postal service and send us the tracking number. As soon as we receive the items, we will repair or exchange them ASAP.
We are not responsible for any damage or other problem produced by user after use and only repair the product with quality problem.


Packaging Details
  • Unit Type: Set
  • Package Weight: 0.7kg (1.54lb.)
  • Package Size: 40cm x 20cm x 10cm (15.75in x 7.87in x 3.94in)
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Packaging Details
  • Unit Type: Set
  • Package Weight: 0.7kg (1.54lb.)
  • Package Size: 40cm x 20cm x 10cm (15.75in x 7.87in x 3.94in)
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