Monoprice RJ11 and RJ45 Modular Plug Tester
Product # 8138
UPC # 844660081388
$4.99
$8.99
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Questions and Answers
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What does the G light mean? I noticed it does not light up with Cat6A cables I purchased from Monoprice but it *does* light up with Cat7 cables I purchased from Monoprice.
Travis W L
on Mar 24, 2017
BEST ANSWER: "Ground" is correct. Cat7 cables should have a foil shield that gets bonded to the connector at each end. Not so for cat6... or, apparently, cat6a.
- Reply(1)
- Inaccurate
- Dan D on May 8, 2017
- Purchased on Nov 17, 2016
BEST ANSWER: "Ground" is correct. Cat7 cables should have a foil shield that gets bonded to the connector at each end. Not so for cat6... or, apparently, cat6a.
- Reply(1)
- Inaccurate
- Dan D on May 8, 2017
- Purchased on Nov 17, 2016
G is for testing Ground though there's honestly no point in grounding both sides of the cable. If you're making your own cables you would actually want to consider having only one side of the cable grounded for the sake of avoiding a ground loop, which causes a bigger headache than what ground tries to avoid.
- Reply
- Inaccurate
- Thi T on Mar 25, 2017
- Purchased on May 7, 2016
I think it stands for Grounded. It has light up for any of my cables yet.
- Reply
- Inaccurate
- Parris R on Mar 25, 2017
- Purchased on May 19, 2016
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Will this work with shielded Cat 5 and Cat 6 cables? Will it indicate whether the shield is properly connected, and if so, how?
A shopper
on Dec 30, 2019
BEST ANSWER: No it does not show if shield is properly connected. It only indicates if the wires are connected correctly as in blue to blue, white/blue to white/blue etc.
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- Inaccurate
- Hector G on Apr 22, 2020
- Purchased on May 11, 2019
BEST ANSWER: No it does not show if shield is properly connected. It only indicates if the wires are connected correctly as in blue to blue, white/blue to white/blue etc.
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- Inaccurate
- Hector G on Apr 22, 2020
- Purchased on May 11, 2019
It will show a ground and will indicate with a light. If there is a short circuit between two or more wires, or if wires are crossed.
- Reply
- Inaccurate
- Dr ken on Mar 28, 2020
- Purchased on Sep 23, 2019
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on one end of CAT5e lights light up in sequence on the main unit. However on the secondary unit the lights do not light up sequentially?
A shopper
on Jan 11, 2021
BEST ANSWER: No they both light up. Make sure they are in unison because off pulses or delays can mean high resistance in the cable.
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- Inaccurate
- Adam D on Jan 11, 2021
- Purchased on Jan 29, 2020
BEST ANSWER: No they both light up. Make sure they are in unison because off pulses or delays can mean high resistance in the cable.
- Reply
- Inaccurate
- Adam D on Jan 11, 2021
- Purchased on Jan 29, 2020
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I am testing CAT 6 RJ45 ethernet cable and only G and #3 don't llluminate on the Master and remote?
A shopper
on Apr 28, 2021
Reviews
4.7 / 5.0
162 Reviews
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Rated 4 out of 5
Works Great.
Sw and battery cover are suspect(may not last). but for the $, great deal 'cuz it works
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Rated 5 out of 5
Just buy it and STOP wondering!
It saved me time and headache wondering if my connection was terminated correctly and I am a beginner!! Love this product!
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Rated 4 out of 5
Okay;
it does what it is supposed to do and is inexpensive.
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Rated 5 out of 5
Great for Checking my New Home
My new home came with a central media center where all Ethernet and coax cables were terminated. I had five of each. They were not labeled as to which cable was connected to which room. Using this device, I was easily able to determine that and to confirm that all eight conductors were wired correctly. One room was completely disconnected and the builder fixed it. I used an RJ45 to coax adapter (which unfortunately Monoprice does not sell) to test the coax connections.
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Rated 5 out of 5
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Rated 5 out of 5
Great tester especially for the price! Small and lightweight. Beats having to run an external Cat5 to complete the loop for testing.
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Rated 5 out of 5
Does what it needs to do
Cheap price, works great ! A must to have for running cables.
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Rated 5 out of 5
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Rated 5 out of 5
continuity tester
Works well - simple inexpensive continuity tester
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Rated 5 out of 5
Handy Tester
This works great to verify that all wires are connected and working. It will show opens, mi-wired pins, and shorted pins or wires. It cannot test that the twisted pairs are mated to the correct pin pairs but this is a minor issue since that is easy to check visually. You can use 2 short jumpers to test your premise wiring.
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