Thexton power on tester
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=22009
Printed Date: July 06, 2025 at 11:43 PM
Topic: Thexton power on tester
Posted By: HamiltonAudio
Subject: Thexton power on tester
Date Posted: November 26, 2003 at 7:43 PM
does anybody use this tool in their bay?? https://www.thexton.com/catalog/diagnose/diag_2.htm#137 its item 137. any feedback, good or bad? We've been using "power probe" testers for a long time, but they are NOT computer safe, as verified by the mfg. This claims it is, and performs the same functions (and even looks very similar). With this day and age of computers, BCM's and multiplex, you can never get too safe....thoughts? b
Replies:
Posted By: auex
Date Posted: November 26, 2003 at 8:40 PM
That actually is completly unsafe, if you accidentally hit a button that unit WILL SEND power or ground through the probe.
-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: HamiltonAudio
Date Posted: November 27, 2003 at 7:10 AM
I realize that if you pump hard current through a circuit, you're not "safe" anymore...but the documentation clearly states that its high impedence (in test mode) so when you're probing circuits, just looking for polarity and function, its as safe as a logic probe. Was hoping others have used this tool and can verify its quality and relative safety.... b
Posted By: auex
Date Posted: November 27, 2003 at 10:36 AM
I have used this tool, I have also seen some one blow almost every computer in a sebring with one. As far as circuit safe, there really is no such thing, you should use a DMM. IMO you should get one of these if you want a test light. It is still resisted and has pos and neg detection. It is safe as long as you know what wires not to test. Personally ever since I left my test light at a job site, over a year ago, I have used my DMM. Once you get used to it you will never even want to go back. ------------- Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.
I've been sick lately, sorry I won't be on much.
Posted By: xetmes
Date Posted: November 27, 2003 at 12:30 PM
man im looking at that snap-on tester... 10ma @ 14V?!? thats horrible, that should really not have to draw more than a few micro or possible nano amps...
Posted By: HamiltonAudio
Date Posted: November 27, 2003 at 8:25 PM
the only PITA is changing one probe from + to - source....if you don't know what polarity a wire is, its a lot of bitching around. the power probes we have are the ideal tool, but they are not computer safe....the thexton one claims to be, but others here claim it not to be.... darn it.... :( b
Posted By: Alpine Guy
Date Posted: November 27, 2003 at 9:06 PM
does snap on sell a computer safe logic probe?? i can't find it on there web site
Posted By: HamiltonAudio
Date Posted: November 28, 2003 at 10:23 AM
I've got a bluepoint logic probe (and by definition, a logic probe is computer safe). however, it won't show you ground circuits.... b
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