The Digital LED DC Voltmeter Ammeter 100V 100A combines two instruments in one panel-mount module a voltmeter reading from 0 to 100V DC and an ammeter reading from 0 to 100A DC displaying both values simultaneously on a dual LED display. Seeing voltage and current together on one display lets the operator calculate power draw (watts = volts × amps) and monitor both parameters at the same time without switching between instruments or displays on a bench panel.
The digital voltmeter ammeter requires a separate power supply of 4.5V to 24V DC for the display module itself this is separate from the voltage and current being measured. That separate supply keeps the display operating even when the measured circuit voltage falls below what would power a self-powered two-wire voltmeter. The 100A current measurement requires an external shunt resistor in the measured circuit the ammeter measures the small voltage drop across a precision shunt to calculate current without passing 100A through the module’s PCB traces directly. Confirm whether a shunt is included with this unit or needs to be purchased separately.
The mini voltmeter ammeter ±1% accuracy across 0 to 100V and 0 to 100A suits solar charge monitoring, battery bank load tracking, and power supply output verification where percentage-level accuracy is adequate. Refresh rate at 500ms updates the display twice per second sufficient for tracking steady-state and slowly changing load conditions. The mini dc digital voltmeter ammeter suits solar panel output monitoring, DC load test bench panels, and battery discharge measurement. Available on StemVolt. This module is working on power monitoring and dual-parameter measurement.
Related Product:
- Checkout LED Display Digital DC Voltmeter
Features:
- Digital led dc voltmeter ammeter 100V 100A show voltage and current simultaneously
- 0 to 100V and 0 to 100A ranges cover small and large DC system monitoring
- ±1% accuracy across the full measurement range for reliable panel readings
- Separate 4.5V to 24V power supply isolates display from high-voltage circuit
- 500ms refresh updates voltage and current readings twice per second live
Technical Specifications:
| Specification | Details |
|---|---|
| Product Type | Digital LED Voltmeter Ammeter |
| Display Type | Dual LED Display |
| Voltage Range | 0V–100V DC |
| Current Range | 0A–100A DC |
| Input Current | ≤ 60mA |
| Power Supply | 4.5V–24V DC |
| Accuracy | ±1% |
| Refresh Rate | 500ms/time |
 Applications:
- Digital led dc voltmeter ammeter 100v 100a monitors solar panel output voltage and charge current
- Voltmeter ammeter displays battery discharge voltage and load current on robot
- Mini voltmeter ammeter monitors bench power supply output voltage and current draw
- LED digital voltmeter ammeter monitors EV battery voltage and motor current in
- DC digital voltmeter ammeter tracks 48V solar charge controller output in off-grid
Package includes:
- 1 x Digital LED DC Voltmeter Ammeter 100V 100A














Nitin Gaikwad –
Best deal available
Rajesh Aggarwal –
It provides accurate voltage and current measurement, making it ideal for engineering projects, battery monitoring, and power system testing
Meera Pillai –
Product as shown
Debojit Baruah –
Delivery was tracked and the product arrived without damage, while after sale support helped with installation and usage guidance.