Truetone mA Meter and cable tester

The Truetone TT-MAM mA Meter and Cable Tester is a compact diagnostic tool designed to help guitarists and pedalboard users measure pedal current draw accurately and troubleshoot power issues with confidence. Connected inline between a power supply output and a pedal, it instantly displays the pedal’s actual current consumption, helping you properly match pedals to isolated outputs and avoid underpowering or overload problems.

Ideal for optimising complex pedalboard setups, the mA Meter helps identify power-hungry pedals, diagnose current mismatch issues and uncover hidden power-related faults before they become problems on stage or in the studio. It supports pedals operating from 9V to 18V DC and works seamlessly with all Truetone 1 Spot Pro models as well as the original 1 Spot.

In addition to current measurement, the TT-MAM includes a built-in cable tester for 1/4" instrument cables, adding another practical troubleshooting function for live and studio musicians. Its inline design requires no batteries, no external power and no modifications to your rig — simply connect it, read the display and diagnose with precision.

Compact enough to fit in any gig bag yet valuable enough to become a permanent setup tool, the Truetone mA Meter is an essential utility for players who want reliable power management and a healthier pedalboard.