DC 100V Digital Voltmeter Ammeter – LED Volt Meter Gauge

DC Digital Voltmeter & Ammeter – Dual Display Gauge for Vehicles & DIY Projects

Keep a precise eye on your electrical systems with this compact DC 100V Digital Voltmeter Ammeter. Featuring a bright 0.56-inch three-digit LED display available in your choice of Red, Green, or Blue, this dual-function volt meter gauge delivers accurate, real-time voltage readings for motorcycles, electromobiles, cars, solar setups, battery banks, and a wide range of DIY electrical projects.

Made in Mainland China.

Why You'll Love It

• Wide Measurement Range: Reads DC voltages from 0 to 100V with ±1% allowable error for dependable accuracy.
• Three LED Color Options: Choose Red, Green, or Blue display to match your dashboard or panel aesthetic.
• Fast Refresh Rate: Updates approximately every 200ms so you always see up-to-the-moment readings.
• Compact & Panel-Mount Ready: Overall dimensions of just 47 × 29 × 21mm with a 46 × 27mm panel cutout — easy to fit into tight spaces.
• Low Power Draw: Working current as low as 13mA (Blue), making it ideal for always-on monitoring without draining your system.
• Broad Operating Temperature: Functions reliably from -10°C to 65°C, indoors or outdoors.
• Three-Wire Design: Simple wiring with a 20cm lead length for straightforward installation.

Technical Specifications

• Product Type: Three-Wire DC Digital Voltage Meter
• Measurement Range: 0 – 100V DC
• Power Supply Range: DC 3 – 30V
• Input / Output: DC 0 – 30V (exceeding this voltage may cause damage)
• Allowable Error: ±1% (±1 digit)
• Input Impedance: >100K ohms
• Working Current: Red <23mA | Green <18mA | Blue <13mA
• Refresh Rate: ~200ms
• Display: 3-digit, 0.56-inch LED digital tube
• Lead Length: 20cm
• Display Colors: Red, Green, Blue
• Overall Dimensions: 47 × 29 × 21mm
• Panel Cutout: 46 × 27mm
• Net Weight: ~14.6g
• Operating Temperature: -10°C to 65°C
• Battery Required: No

Great Pairings for Your Projects

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Frequently Asked Questions

Q: What vehicles and applications is this digital voltmeter compatible with?

A: This DC digital voltmeter ammeter is compatible with a wide range of applications including motorcycles, electromobiles, cars, solar panel systems, battery banks, and general DIY electrical projects — anything operating within its DC 0–100V measurement range and requiring a 3–30V power supply.

Q: How do I wire the three-wire digital volt meter gauge?

A: The meter uses a simple three-wire connection: one wire for the positive power supply, one for the negative/ground, and one for the voltage measurement input. The included 20cm leads make panel installation straightforward. Always ensure your measurement input does not exceed 30V DC to avoid damage.

Q: Can I choose the LED display color when ordering?

A: Yes! This voltmeter is available in three LED display colors — Red, Green, and Blue. Simply select your preferred color option when adding the product to your cart. Each color also has a slightly different working current draw (Red <23mA, Green <18mA, Blue <13mA).