Cheap High Precision Digital Display Gauge Module
3-Digit Mini LCD Digital DC Panel Meter – High Precision Voltage Current Display Module Perfect fit for: ✅ Solar & off-grid power systems ✅ RV, camper & marine battery monitoring ✅ DIY electronics & ham radio projects ✅ Factory automation & industrial control cabinets ✅ Battery capacity testing & power supply maintenance ✅ Student electronic teaching & lab equipment Technical Specifications Display 3 Digit LCD Digital Screen Working Power Supply DC 9V Default Input Range
Voltage range
200mV
Place of Origin
Wuxi, China
Phase
Single Phase
Packaging Details
carton packaging
Accuracy Class
Class 0.5
Model Number
PM438
Product Description
3-Digit Mini LCD Digital DC Panel Meter – High Precision Voltage Current Display Module
Perfect fit for:
✅ Solar & off-grid power systems
✅ RV, camper & marine battery monitoring
✅ DIY electronics & ham radio projects
✅ Factory automation & industrial control cabinets
✅ Battery capacity testing & power supply maintenance
✅ Student electronic teaching & lab equipment
Technical Specifications
| Display | 3 Digit LCD Digital Screen |
| Working Power Supply | DC 9V |
| Default Input Range | DC 0 ~ 200mV |
| Measured Signal Input | DC Voltage / DC Current (customizable) |
| Decimal Setting | Adjustable via P1/P2/P3 jumper pins |
| Range Calibration | Configure by RA / RB external resistor |
| Operating Temperature | -10℃ ~ +60℃ |
| Installation | Standard embedded panel mounting |
| Weight | 35g |
How It Works & Installation Guide
- Power the meter: Connect DC 9V power to the dedicated DC9V power terminal
- Connect your measured DC signal to the IN+ / IN- signal input terminals
- Adjust RA and RB resistors to match your target voltage or current testing range
- Short P1/P2/P3 pins to set your needed decimal point display position
- Fix the module into standard panel opening, complete installation and power on for instant real-time reading
Why Choose Our Digital LCD Panel Meter?
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Price: $2.90-6 / piece
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