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August 27, 2017


The Amprobe team is voluntarily recalling the AT-4000 Wire Tracer Series.

Why is this recall happening?

The T-4000 and T-4000-A Transmitters included in the AT-4000 Series Advanced Wire Tracer kits exhibit a condition that may lead to electric shock.

When a transmitter is connected to hazardous voltage (T-4000 up to 600V and T-4000-A up to 300V), that voltage may appear on the exposed pin of the battery backup terminal or the backup battery if connected. Both the center pin and the battery terminal are accessible to being touched.


How did this happen?

Designed more than 15 years ago, the AT-4000 technology was to be discontinued and replaced with newer technology by 2018. However, in a recent internal review we discovered this risk, so we are now undertaking this voluntary recall immediately because we place tremendous importance on our customer's safety and the reputation of our products.

We are confident our current safety testing standards will ensure every product meets and exceeds the safety our customers expect.

How do I know my Wire Tracer is an AT-4000?

  • If your Transmitter & Receiver have the form factor shown below and have the number "4000" on the faceplate (for example, "R-4000", "T-4000", "T-4000-A", etc.), you own an AT-4000 Wire Tracer Kit that is under recall.
  • Faceplate may not match exactly.
  • If your Transmitter & Receiver are listed in the following table:
    Amprobe Part # Model name and Description
    2733553 T-4000, Transmitter for the the AT-4000 series
    2734238 AT-4001CON, Advanced Wire Tracer
    2734245 AT-4003CON, Advanced Wire Tracer
    2734250 AT-4004CON, Advanced Wire Tracer
    2734261 AT-4005CON, Advanced Wire Tracer
    4416052 AT-4001-A, Advanced Wire Tracer
    4416065 AT-4003-A, Advanced Wire Tracer
    4416076 AT-4004-A, Advanced Wire Tracer
    4416083 AT-4005-A, Advanced Wire Tracer
    4425261 T-4000-A, Transmitter for the AT-4000 series
    4487621 T-4001-A/WWG, Advanced Wire Tracer
    4487639 T-4003-A/WWG, Advanced Wire Tracer
    4487642 T-4004-A/WWG, Advanced Wire Tracer
    4487656 T-4005-A/WWG, Advanced Wire Tracer
  • If you do own the AT-4000 Series Wire Tracer, STOP USING IMMEDIATELY. Amprobe will replace it with a new and complete kit of your choice at no cost to you once your AT-4000 kit has been shipped back.
    • For each AT-4000 Series kit you own, you may select an equal number of replacement kits. (For example, if you own three (3) AT-4000 Series Kits, you may select two (2) AT-7030 kits and one (1) AT-2004 kit if preferred.)

If you have any concerns or questions, please call 888-753-5853 or email
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