30A Analogue Ammeter Gauge 12V-24V for Cars, Trucks, Tractors

A battery that goes flat after a long park is a current draw nobody has measured. This analogue ammeter reads the current flowing in a 12V or 24V circuit on a pointer dial, so one look under the dash tells you what is happening. It suits drivers, fitters and tractor owners chasing a fault.

See the Current Before It Turns Into a Fault

✅ Find what drains the battery With the engine off, the dial shows current still moving through the circuit it is wired into.

✅ Watch a load as you switch it on Switch on a light bar and the pointer swings to show that circuit's draw.

✅ See a charger doing its job In a charging line, the dial shows how much current is going into the battery.

✅ Read it in one glance The pointer dial needs no menu, no button and no waiting for a screen.

✅ One gauge for both voltages It is made for 12V and 24V systems, so it covers cars, vans, trucks and tractors.

The gauge reads current on a 30A scale, and it works in line with the circuit it measures: the feed you want to watch passes through it and the pointer follows the load. That is why it suits one accessory circuit or one charging line rather than a whole vehicle.

Fitting it is a panel job. The square case measures 5.5 by 5.5 by 5 cm, so measure the space on the dash or the bracket before ordering, and plan the wiring run at the same time. Only the ammeter is in the box; wire, terminals and fixings are not included.

It shows current, not voltage, and the scale stops at 30A, so a starter motor or a winch sits outside what it can read. For one circuit, one accessory or one charging line it is enough; for a whole vehicle's charging system you need a different instrument.

Technical details

• Type: analogue ammeter gauge
• Measurement: current on a 30A scale
• System voltage: 12V and 24V
• Display: pointer dial
• Housing: metal
• Face size: 5.5 x 5.5 x 5.0 cm (2.16 x 2.16 x 1.97 in)
• Mounting: square panel fitting
• In the box: 1 x ammeter
• Not included: wiring, terminals and fixings

Fit it to the circuit you want to watch and read the draw before the next flat battery.

See more: explore more vehicle diagnostic and testing tools