Description
- Power Source: Powered
- Wireless function: No
- High-concerned chemical: None
- Connector Type: SC/FC/ST
- Brand Name: LYNNDM
- Origin: Mainland China
- Type: Fiber Optic Tester Pen
- Transmission Distance: 5km/10km/15km/20km/30km/50km/60km
- Material: Aluminum Alloy
- Applicable Connector: SC / FC / ST
- Output Wavelength: 650±10mm
- Operating Temperature: 10℃ – 60℃ (non-condensing)
- Storage Temperature: -40°C ~ 85°C
1PCS Visual Fault Locator Fiber Optic Tester Tool 5MW/10MW/15MW/20MW/30MW/50MW/60MW FTTH Optic Laser Pen SC/FC/ST Adjustable Red Light Power Meter
Product Name: Fiber Optic Tester Pen
Transmission Distance: 5km/10km/15km/20km/30km/50km/60km/70km/80km/100km
Material: Aluminum Alloy
Applicable Connector: SC / FC / ST
Output Wavelength: 650±10mm
Operating Temperature: 10℃ – 60℃ (non-condensing)
Storage Temperature: -40°C ~ 85°C
Features
Measurement range: Provides multiple power options from 5mW to 100mW to meet various fiber testing needs. A break or fault in the fiber will refract the light, forming a bright spot around the fault area.
Multiple Connector Compatibility: SC/FC/ST connectors ensure its wide applicability to a variety of fiber systems.
Longer Transmission Distance: The test distance can reach 100 kilometers, allowing for a comprehensive fiber network assessment.
User-Friendly Design: Pen-shaped design with a carrying case for easy carrying.
100% brand new and high quality.
Shape and Color: Same as shown in the picture
Type is your choice!!
Quantity is your choice!!
Thank you for your patronage and wish you a pleasant cooperation!!
Note: Due to the characteristics of the product and the measuring tools, plus the pure manual measurement and cutting of the cable, the length may have an error of 1%-5%.









































B***E (verified owner) –
The product is excellent, it arrived exactly as shown in the image.
Recommend the service now. 🫶🏻
B***e (verified owner) –
70mw working great.
AliExpress Shopper (verified owner) –
80MW works great, delivery faster than expected.
P***r (verified owner) –
It works very well for those who want to use in a balanced network with 3 layers of Splitters, you can see very well the light passing through each Splitter, it’s very easy to detect errors or broken fibers, excellent option, a slightly higher price compared to others, but it’s worth it since others deceive in MW and this seller delivers what they say.
v***r (verified owner) –
Fiber optic inspection tool meeting my needs for optical connection control. Thank you to the seller for the quality of this product, especially delivered with a carrying case. The tests conducted are fully conclusive and satisfactory.
AliExpress Shopper (verified owner) –
Excellent, tested so far at distances of 2/3 km the light is very visible, finding faults in the muffler is much easier.
a***r (verified owner) –
Very satisfied with the product, of very good quality and, above all, it arrived before the indicated date. Recommended for measurement and adaptation work.
AliExpress Shopper (verified owner) –
Excellent fiber optic ruby red light. I bought the 10 mw and it is very bright. I’ll mainly be using it to help locate the correct fiber termination between a home and a fiber distribution hub, so the brightest exceeds what i need it for. It uses two aa batteries, which i like because it is easy to replace. Delivery was much faster than i was expecting (arrived 8 days after ordering).