0–200V DC Solar Power Meter — Real-time monitoring for solar, battery, and off-grid systems
Are you guessing how much power your system is actually producing or consuming? Without a dedicated monitor, you are flying blind. This DC solar meter provides a comprehensive overview of your energy usage, displaying voltage, current, power, kWh, Ah, and internal resistance all at once on a crisp, backlit LCD screen.
Note: For system voltages below 8V DC, an external power supply is required to keep the display active.
Why choose this model? (Key Benefits):
- 9-in-1 Real-time Display — View voltage, current, power, kWh, Ah, internal resistance, impedance, runtime, and a battery discharge bar simultaneously without toggling screens.
- 100A or 300A Options — Choose the 100A model for standard residential setups, or the 300A version for high-capacity industrial installations and large battery banks.
- High Sensitivity — Detects current as low as 20mA and power from 0.2W, ensuring you capture even the smallest standby power draws from your inverter.
- Long-term Energy Tracking — Monitors up to 9999 kWh with 1Wh resolution, allowing you to track production or consumption over months without needing a manual reset.
- Wide 12V–200V DC Range — Fully compatible with various configurations, including automotive batteries, 48V off-grid systems, and series-connected solar arrays.
- 10-Stage Discharge Bar — Get an instant visual representation of your battery’s charge percentage without complex calculations or external apps.
- Internal Resistance Measurement (0–999mΩ) — Diagnose the true health of your batteries rather than relying solely on surface voltage.
Performance and Specifications
This meter is designed exclusively for Direct Current (DC) systems, handling a voltage range of 0 to 200V and power up to 60,000W — making it ideal for medium to large-scale solar arrays. Beyond basic voltage monitoring, the internal resistance and impedance functions help you identify battery degradation or power losses in your wiring. The load runtime feature automatically logs up to 999 hours, perfect for analyzing your system’s actual duty cycles.
| Parameter | Specification |
|---|---|
| Voltage Range | 0 – 200V DC (External power required below 8V) |
| Current Range | 0 – 100A or 0 – 300A (Starts at 20mA) |
| Power Range | 0 – 60,000W (Detection from 0.2W) |
| Internal Resistance | 0 – 999 mΩ |
| Impedance | 0 – 1000 Ω |
| Battery Capacity | 0 – 1000 Ah |
| Energy Accumulation | 0 – 9999 kWh (Resolution: 1Wh = 0.001 kWh) |
| Battery Discharge Bar | 10-segment graphical display (10% per segment) |
| Load Runtime | 0 – 999 hours |
| Display | Backlit LCD |
| Current Type | DC (Direct Current) |
| Primary Applications | Solar PV, 12V/24V/48V batteries, wind turbines, RVs, industrial |
Installation and Setup
- Connect the current shunt in series with the circuit you wish to monitor, ensuring correct polarity.
- Connect the voltage sensing wires (V+ and V–) in parallel with your power source or battery.
- If your system voltage is below 8V DC, connect an external power source to the meter to activate the display.
- Access the settings menu to configure your battery capacity (Ah) and calibrate the discharge bar.
- Reset the kWh energy counter upon installation to begin tracking from zero.
- Regularly inspect connections and ensure you do not exceed the rated current of your chosen shunt (100A or 300A).
Package Contents
- 1x Multifunction DC Solar Meter with LCD
- 1x Current Shunt (100A or 300A, depending on your selection)
- Connection Cables
- User Manual
Frequently Asked Questions
Does this work with a 48V solar system?
Yes. The meter covers 0–200V DC, making it fully compatible with 12V, 24V, 48V, and higher voltage configurations used in off-grid or hybrid setups.
What is the difference between the 100A and 300A versions?
The difference is the included shunt. The 100A version is ideal for residential systems and medium-capacity batteries, while the 300A version is designed for high-load installations, large battery banks, or industrial DC applications.
Can I use this to test automotive or marine batteries?
Yes. The ability to measure internal resistance, real capacity (Ah), and the discharge bar makes it an excellent tool for diagnosing 12V or 24V batteries in automotive, marine, or stationary applications.
Does it record energy usage when I am away?
Yes. The meter continuously logs kWh and load runtime as long as it is powered and there is current flowing through the circuit.
Can it be mounted outdoors?
Not directly. The unit is intended for indoor use or within a protected enclosure. If mounting outdoors, you must provide a weather-resistant housing to protect it from moisture and dust.
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