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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
JSK-4300B 4.3 inch Handheld 12V Output Network Cable Monitoring Tester, 4.3 inch (With US Plug Power Adapter), 4.3 inch (With EU Plug Power Adapter), 4.3 inch (With UK Plug Power Adapter), 4.3 inch (With AU Plug Power Adapter)1. Video system: NTSC PAL 2. Display screen: 4. 3 inch high definition TET screen, suitable for various occasions, allowing the screen to present a clear image of 16: 9 or 4: 3 3. Video input: video input x 1 (BNC interface) 4. Video output: 7 kinds of color bar signal output 5. Operation interface: OSD switch 6. Power output: power DC output (support general photography lens power current up to 500mA) 7. External power supply: external power DC5A 1.
1. Video system: NTSC/PAL
2. Display screen: 4.3-inch high-definition TET screen, suitable for various occasions, allowing the screen to present a clear image of 16:9 or 4:3
3. Video input: video input x 1 (BNC interface)
4. Video output: 7 kinds of color bar signal output
5. Operation interface: OSD switch
6. Power output: power DC output (support general photography lens power / current up to 500mA)
7. External power supply: external power DC5A 1.0A transformer
8. Battery capacity: 3.7V 3000mAh
9. Charging time: about 6h
10. Working time: about 5-8h (without CCD power supply)
11. Indicator: 2 LED bulbs (power indication - green light, charging indication - red light)
12. Working ambient temperature: 0-60 degrees Celsius
13. Working environment humidity: 30%-90%
14. Form factor: about 17.8 x 11 x 4cm
15. Weight: about 350g
Features:
1. 4.3 inch high-definition large screen, the display area is broader and clearer, more intuitive and convenient to show the effect of the camera image
2. LCD monitor brightness, contrast, color saturation adjustable, backlight brightness adjustable for field construction and maintenance
3. Foldable also can measure the network cable, can also be worn on the wrist, easy to use
4. Color bar output, image generator, send PAL color graphics bar (white, yellow, cyan, green, purple, red, blue), seven kinds of color bar signal output
5. Test lens connection method: through the data line to be tested lens and tester connection, can be directly observed in the tester display above the detection of the lens to be tested, imaging effect
6. Support high current output (up to 1A), in places with less light can detect the need for high current driven night vision lens
7. Network cable test: first select the network cable test in the menu, and then press the left button or right button next to the network cable test, you can test the good or bad network cable, line short circuit and other issues
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Nice Fit
Color: Black, White, Light Gray, Size: 3X-Large
I picked this up looking for something simple but clean, and it delivered. The fit is comfortable, the material feels solid, and it looks good without needing much effort. It’s one of those pieces you can throw on and still look put together.
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Reviewed in the United States on March 29, 2026
★★★★★ 4
Good value, soft and comfortable
Color: Black, Army Green, Light Gray, Size: 4X-Large, Color: Black, Army Green, Light Gray, Size: 4X-Large
Initial thoughts are very positive with this 3 pack shirt set. The green is similar to an OD military green and the black and gray are standard color shades. Material is soft and sizes are true to size. The mock turtleneck isn’t too tight but may still be a little annoying to some people. I do question the amount of spandex in these shirts. Tag says 5% but these shirts are extremely stretchy and feels like a higher spandex content. It’s also a little tough to figure out which way is the front of the shirt. Visually rhe front does have a lower collar line than the back but would still be nice to have a brand tag printed in the back of the shirt for quicker identification.
Overall for roughly $12 a shirt these are a good choice for everyday wear. I will update rating if these shirts fail to meet expectations after further use.
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Reviewed in the United States on April 8, 2025
★★★★★ 5
👍🏻
Color: Black, Army Green, Light Gray, Size: 5X-Large
Weirdly thick material, I wasn’t a fan but it’s a good sleep shirt
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Just what I wanted.
Color: Black, Navy Blue, Wine Red, Size: 5X-Large
These may have just become my standard shirt to wear. Feels good whether tucked or out. Drapes well and fits well. So far, I can see it adjust to the different undershirt I may wear. Will probably order another set in other colors and a back up set of the basics because they will get worn a lot.
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Reviewed in the United States on July 17, 2025
★★★★★ 3
Its alright
Color: Black, Size: 5X-Large
True to size per the size chart. The fabric is soft but it it feels cheap to me. It attracts lint but you can brush it off easily so its not the cheapest material I've dealt with. Also, it is opaque (not see through).
There is no front/ back indicator either which is indicative of a cheap shirt in my opinion. Would be friendly for tag sensitive people (to stay positive).
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Reviewed in the United States on April 14, 2026