22mm 0-100A AC 20-500V Digital Voltmeter Ammeter – Blue

This 22mm panel-mount digital meter simultaneously measures AC voltage (20–500V) and AC current (0–100A) on a bright blue LED display. Designed for electrical monitoring in distribution panels, motor control centres, and industrial equipment, it is a compact, drop-in replacement for analogue meters.

Specifications

• Voltage measuring range: AC 20–500V
• Current measuring range: AC 0–100A (requires external current transformer, not included)
• Display: 3-digit blue LED
• Panel cut-out diameter: 20.3mm (0.8 inch)
• Overall panel size: 31 x 31mm
• Supply voltage: derived from measurement lines (no external power needed)
• Colour: blue display
• Material: flame-retardant plastic housing

Compatible with

• Single-phase AC distribution boards
• Three-phase panels (one meter per phase)
• Motor control centres (MCC)
• Generator control panels
• UPS output monitoring
• Any AC circuit up to 500V and 100A

What you can build with it

• Home energy monitor: Track real-time power consumption of a workshop or home appliance circuit.
• Industrial load tester: Verify current draw and voltage stability of motors, heaters, or transformers under load.
• Solar inverter output panel: Monitor AC output from a grid-tie or off-grid inverter.

Built and Backed by Compoden

Every meter ships with a QR code linking to our AI build companion – it helps you wire, calibrate, and integrate this meter into your project. With 10 years of supplying makers and institutions across India, we ensure you get a working part and the support to use it. Pay your way: UPI, cards, or Cash on Delivery, anywhere in India.

What payment options are available for this meter?

We accept UPI, all major credit/debit cards, and Cash on Delivery (COD) across India.

How do I connect this meter to measure current?

This meter requires an external current transformer (CT) with a 100A:5A or 100A:1A ratio. The CT secondary wires connect to the meter’s current input terminals. The voltage measurement wires connect directly to the line and neutral.

Does this meter need a separate power supply?

No. The meter is powered directly from the AC voltage it measures (20–500V). No external DC supply is needed.

What is the delivery time to my city?

We ship this meter across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Typical delivery is 3–7 business days via courier.