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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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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
4.8 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Love these
Size: 16 Inch, Color: White, Size: 16 Inch, Color: White
I love these shelves! The look good and the installation was super easy! They also seem very durable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 4
Cheaply made.
Size: 16 Inch, Color: White
Looks nice. Feels cheap and does not hold much weight
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Good shelves for the price can be challenging to install correctly
Size: 16 Inch, Color: White, Size: 16 Inch, Color: White
Good quality shelves for the price. Happy with the purchase. They give you assorted hardware to mount each shelf. Wall anchors for masonry or brick and anchors for drywall as well as screws to affix shelf to the wall bracket. The installation was fairly easy but it can be a bit difficult to get the bracket leveled on the wall. The “level” they give you is useless, it is only the tube - not in a housing, so 1 1/2” long. You will need a better level. Basically you place the bracket where you want the shelf to go then make sure it is level and take a pencil to mark the holes. We ended up using a heavier quality wall anchor so only needed 2 anchors instead of the four they send you. Once the bracket is on, slide the shelf onto the bars coming from the bracket and use the 2 set screws to secure it in place. Check for level and if it isn’t you can remove shelf and loosen bracket screws and wiggle the bracket while still attached while retightening screws. We had to re-level one of our shelves this way. Hope this helps and that it makes sense. As for weight capacity I wouldn’t want to put more than a couple of pounds on a shelf. As it is secure, it is hollow inside and too much weight would probably either cause the shelf to sag or damage your wall
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Reviewed in the United States on February 25, 2025
★★★★★ 5
Excellent product with height recommendation
Size: 24 Inch, Color: White, Size: 24 Inch, Color: White
My bathroom renovation is turning out great. These shelves are beautifully stable and show no visible assembly. The idea of these floating shelves is brilliant.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Beautiful and sturdy
Size: 24 Inch, Color: White
Excellent quality shelves. All hardware came with them and also the stickers to cover the screws. I also placed a plant on one of the shelves and it’s not leaning and again very nice and secure.
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Reviewed in the United States on May 13, 2026