0.28″ DC0-100V 10A Voltage And Current Digital Meter Display

0.28″ DC 0-100V 10A 4-Digit Voltage and Current Digital Meter is a compact, highly precise panel mount device that simultaneously measures and displays DC voltage and current. This versatile meter features dual 4-digit LED segments, providing clear, real-time feedback for both parameters. Consequently, this design simplifies monitoring complex DC systems where you must track power delivery and consumption. The unit measures voltages up to 100V DC and currents up to 10A, making it perfect for battery monitoring, power supply testing, and embedded systems. Furthermore, the meter requires no external current shunt resistor, simplifying wiring and reducing component count. Install this all-in-one voltmeter-ammeter easily into your project enclosures or test benches for accurate, quick diagnostics.

Key Features:

• Dual Measurement Display: The unit simultaneously displays voltage and current readings on separate 4-digit, 0.28-inch LED segments (typically Red for Voltage and Blue/Green for Current).
• Integrated Shunt Resistor: The current measurement circuit uses an internal shunt, eliminating the need for an external current shunt when measuring up to 10A.
• Wide Measurement Range: This meter measures DC voltage from 0 V to 100 V and DC current from 0 A to 10 A, suiting a broad spectrum of low-voltage DC applications.
• High Accuracy and Resolution: The 4-digit display offers improved resolution (e.g., 0.01V/0.01A), providing more precise data than standard 3-digit meters.
• Reverse Polarity Protection: The power supply input includes protection circuitry, helping prevent damage if you accidentally reverse the input polarity.

Technical Specifications:

• Operating Voltage (V_CC): DC 4.5 V to 30 V (Powering the meter itself)
• Measurement Voltage Range (V): DC 0 V to 100 V
• Measurement Current Range (I): DC 0 A to 10 A
• Resolution (Voltage): 0.1 V (for readings < 100V)
• Resolution (Current): 0.01 A (for readings < 10A)
• Measurement Accuracy: ±1% (+/- 1 digit)
• Display Type: Dual 4-Digit 0.28″ LED (Red for V, Blue/Green for A)
• Refresh Rate: ≈ 300 ms/time

Mechanical Specifications:

• Panel Cutout Required: ≈ 45.5 mm x 26.5 mm
• Mounting Style: Panel Mount with Snap-in Clips
• Connection Type: 5-Pin Connector with Tinned Leads
• Case Material: Durable ABS Plastic

Dimensions:

• Overall Dimensions: ≈ 48 mm x 29 mm x 21 mm (Length x Width x Depth)
• Display Size: 0.28 inches
• Weight: ≈ 20 g (Lightweight for embedded installations)

Pinout and Wiring:

• Thin Red Wire: Connects to the meter’s positive power supply (DC 4.5V-30V).
• Thin Black Wire: Connects to the meter’s negative power supply (GND). This must be isolated from the measurement ground if V < 4.5V.
• Thick Red Wire: Connects to the positive side of the load/power source for voltage measurement (V+).
• Thick Black Wire: Connects to the negative side of the load/power source (Current Shunt Input -).
• Thick Yellow Wire (or Blue): Connects to the positive side of the power source for current measurement (Load Input +). The thick black and yellow/blue wires must be connected in series with the load.
• Wiring Note: Importantly, for measuring current, you must wire the thick wires in series with the DC load.

Datasheet Reference:

• Download DC Voltmeter Ammeter Module Reference Guide

Commonly Used in:

• DIY Power Supplies: Integrators use it to monitor output parameters in laboratory and benchtop power supplies.
• Battery Monitoring Systems: It provides real-time voltage and charging/discharging current for 12V, 24V, and 48V battery packs.
• Solar/Wind Energy Systems: Crucial for monitoring power flow from solar panels or wind turbines to charge controllers.

Applications:

• Test Equipment: Serves as an essential component in custom electronic testing jigs and fixtures.
• Hobby Electronics: Makers use it to visually track power usage in robotics, RC models, and other high-power projects.
• Automotive Diagnostics: Moreover, it helps diagnose current draws and voltage drops in 12V automotive systems.

Equivalent Models:

• DPM-010: A similar model often found with slightly different casing or wiring harness colors, but possessing identical core electrical specifications.
• XH-M422: A functionally comparable module that offers simultaneous voltage and current display.

Package Includes:

• 1 x 0.28″ DC 0-100V 10A Digital Voltmeter Ammeter Display Module