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Square analog panel meter with white dial black needle and chrome bezel

Unique-Bargains

Unique-Bargains 91C4-A Analog Ammeter DC 0-50A Class 5 45x45x35mm

SKU CH-3PXC-Z27J3 MPN 91C4-A

Analog panel meter measures DC current from 0 to 50 A with Class 5 accuracy and fits a 45 x 45 mm cut-out

  • Product typeAnalog Multimeters
  • Measures DC current from 0 to 50A with Class 5 accuracy
  • Compact 45x45x35mm panel fits tight dashboard or enclosure spaces
  • Clear analogue scale with fine-tuning button for precise reading
  • Operates reliably between -20°C and +50°C ambient temperature
  • Requires external 75mV shunt (not supplied) for correct operation

Panel ammeter for DC circuits

This 91C4-A analog panel meter measures direct current from 0 to 50 A with Class 5 accuracy. It is built for technicians and hobbyists who need a simple, readable indication of current flow in automotive, marine or bench-top DC systems. The movement requires an external 75 mV shunt, which is not supplied with the meter.

Replaces basic indicator lamps

The meter upgrades a circuit that previously had no quantitative current display, letting the user see actual amperage instead of guessing from a warning light. The jump is worth it when troubleshooting charging systems, verifying load draw or setting up battery monitors where a numeric reading prevents over-current damage. It is not for installations that cannot accommodate a separate shunt or that need digital logging or alarm outputs.

Limited to analog DC measurement with separate shunt

The Class 5 movement reads only DC amperes and provides no voltage, resistance or continuity functions. Its operating range spans -20 °C to +50 °C, and the mechanism must be protected from knocks or vibration that could upset the needle. Because the shunt is sold separately, the installer must source a matching 75 mV part and ensure wiring runs stay short enough to avoid measurement error.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 94% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameUnique Bargains
Product typeAnalog Multimeters

Questions about this item

What size panel cut-out does the 45 x 45 mm Unique-Bargains 91C4-A analog ammeter require for mounting?

The meter fits a 1.5 x 1.5 inch square cut-out, which matches the mount size listed for this 45 mm panel meter.

How do I install the 91C4-A DC ammeter, and what is the step most people miss?

You must wire the meter in series with a separate 75 mV shunt; the meter alone cannot measure 50 A and the shunt is not included in the package.

What ongoing care does the 91C4-A analog panel meter need after installation?

Avoid knocking or shaking the instrument; the moving-coil mechanism can lose calibration if subjected to mechanical shock.

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