Guitar Pickup Phase Checker

If you’re wondering how to check the phase of a guitar pickup, there are several methods available, such as using a multimeter or your ear. However, having a dedicated tool designed specifically for this purpose can make the process much easier and faster.

That’s where the N-audio guitar pickup phase checker comes in.

This small but incredibly useful device is designed to help you determine the wire function of any humbucker or single pickup. It’s an ideal tool for luthiers, guitar repair shops, or DIY enthusiasts who need to perform quick pickup phase detection.

While companies like Seymour Duncan or DiMarzio typically provide manuals showing how to connect their pickups, most stock guitar pickups and unknown pickups require an initial phase check. For example, four-wire humbuckers need to be identified in order to match the pickup phase, among others.

Thankfully, using this tester, you can quickly check the phase of any passive or active pickup or to verify the phase of guitar effects and identify open circuit pickups.

With the N-Audio guitar pickup phase checker, you can simplify the process of pickup phase analysis and testing, allowing you to spend more time playing your guitar and less time troubleshooting. Together with the N-audio Magnetic Pole Detector you will have everything for proper guitar pickup analysis.

Phase Tester


  • Easy and non-invasive pickup phase checking directly on the guitar, without the need for desoldering or disassembly.
  • Finding an open circuit pickup.
  • Compatibility with any type of single or humbucker pickup, whether passive or active.
  • Identification of the wiring of unknown 2, 3 or 4-wire pickups, saving time and hassle during installation or repair.
  • Capability to check the phase of guitar effects pedals.
  • Direct pickup phase check on any guitar without desoldering

Now you can buy your N-audio Guitar Pickup Phase Checker with a high-quality, durable soft silicone 18AWG cable with a mono jack and two convenient alligator clips for quick checking guitar pickups out of the box.

Guitar Pickup Phase Checker cable


  • PCB size: 48x21mm
  • Battery: CR2032 (not included)
  • Idle current consumption: 200uA
  • Dual LED indication: Green – positive phase, Red – negative phase

Buy Now

Including Free shipping

Product Documentation