DC Analog Ammeter 91C4 | Mechanical Pointer Panel Meter

This DC analog ammeter provides a reliable way to monitor current in your electrical projects. The mechanical pointer design gives you a clear, instant reading without the need for batteries or external power.

Whether you are working on a DIY electronics bench, an industrial control panel, or an educational project, this panel meter offers accurate current measurement across a wide range of amperage options. Choose from 1mA to 50A models to match your specific monitoring needs.

The compact 45x45mm square housing fits standard panel cutouts, making installation straightforward. Its analog display is easy to read at a glance, and the durable construction ensures long-term performance in various environments.

This meter operates reliably in temperatures from -20°C to +50°C, making it suitable for both indoor workshops and outdoor enclosures. The accuracy class 2.0 rating means you get dependable readings for your critical measurements.

Key Features and Benefits

- DC analog display that provides instant current readings without power supply requirements

• Wide current range selection from 1mA to 50A that fits multiple applications

• Compact 45x45mm panel size that fits standard mounting holes for easy installation

• Mechanical pointer mechanism that operates without batteries for reliable long-term use

• Accuracy class 2.0 rating that delivers dependable measurement precision

• Wide operating temperature range from -20°C to +50°C that suits various environments

Who Is This For

- Electronics hobbyists who need to monitor DC current in their DIY projects

• Electrical technicians working on control panels and industrial equipment

• Students and educators in electronics labs who require demonstration tools

• Maintenance professionals who need replacement meters for existing equipment

Usage Scenario

Mark was troubleshooting a battery charging circuit in his workshop. He needed to verify the current flow to ensure the charger was working correctly. He mounted this analog ammeter into his test panel, connected the leads, and immediately saw the needle move to the expected reading. The clear scale and responsive pointer helped him confirm the circuit was operating within safe parameters, saving him time and preventing potential damage to his equipment.

Micro Comparison

Unlike digital meters that require batteries and can be harder to read in bright light, this analog ammeter works passively and offers instant visual feedback. The mechanical pointer shows changing current levels smoothly, making it ideal for monitoring trends and fluctuations. Its simple design means fewer failure points compared to complex digital alternatives.

Specifications

- Model: 91C4

• Display Type: Analog Only

• Accuracy Class: 2.0

• Dimensions: 45 x 45 mm / 1.8 x 1.8 in

• Operating Temperature: -20°C to +50°C / -4°F to +122°F

• Battery Included: No

Package Includes

- 1 x 91C4 DC Analog Ammeter

Why You Will Love It

You will appreciate the straightforward reliability of this analog meter. No batteries, no setup menus, just connect and read. The classic pointer design gives you confidence in your measurements and adds a professional touch to your panel.

Questions and Answers

Question: Does this ammeter require a power source to operate?

Answer: No, this is a passive analog meter that works without batteries or external power. The current being measured drives the pointer directly.

Question: What current ranges are available for this model?

Answer: This meter is available in multiple ranges including 1mA, 5mA, 10mA, 30mA, 1A, 2A, 3A, 5A, 10A, 20A, 30A, and 50A. Please select the range that matches your application.

Question: How do I install this meter into a panel?

Answer: The meter has a 45x45mm square body that fits standard panel cutouts. You insert it from the front and secure it with the included mounting bracket from behind.

Question: Can I use this meter for AC current measurement?

Answer: No, this ammeter is designed for DC (direct current) measurement only. Using it with AC current can damage the meter or give inaccurate readings.

Question: What does accuracy class 2.0 mean?

Answer: It means the meter has a maximum error of 2% of the full scale reading. For example, on a 10A model, the reading will be accurate within plus or minus 0.2A.

Question: Is this meter suitable for outdoor use?

Answer: The operating temperature range is -20°C to +50°C, so it can be used outdoors as long as it is protected from direct moisture and weather exposure.