Coded Wire Tag Detectors

Coded Wire Tags are tiny rarely visible after injection. However, their presence can be electronically detected using Coded Wire Tag detectors.

When do you need a detector?

Detectors are used at four stages in most Coded Wire Tag projects:

  1. During tagging, you won’t be able to see if a tag has been injected, so you will need a detector to verify successful implantation. If you are using a Mark IV Injector, a common choice is to pair it with the Quality Control Device (QCD) to verify tag injection. However, this can also be done using a V-Detector or T-Wand.
  2. After tagging, but before release, you will need a detector to measure tag retention rates. A V-Detector is an excellent tool for this, and a T-Wand can also be a good choice.
  3. At recapture, you will need a detector to sort tagged and untagged animals unless they can be distinguished by a secondary tag or mark (eg a fin clip). The most suitable detector depends on the application. Tunnel detectors are a good choice for high volume sorting such as at hatcheries or processing plants. The T-Wand detectors is rugged and portable for field sampling. In some cases, it can be used to identify the specific body location of a tag when the body location is used as a batch code. V-Detectors are a good choice when they can be placed on a stable surface.
  4. Once tagged animals have been identified, you will need a Coded Wire Tag detector during the dissection process to quickly locate and remove tags. A V-Detector is the preferred tool for this job.

Available detectors

We offer four types of Coded Wire Tag detectors: T-Wand (specifications (pdf), how-to video (YouTube)), V-Detector (specifications (pdf)), and R9500 Tunnel Detectors.