The RF4 2003M Intelligent DC Power Supply is a high-precision 20V/3A digital regulated bench power supply designed for professional mobile phone repair, PCB diagnostics, electronics testing, battery activation, and laboratory applications. Featuring advanced low-ripple and anti-interference technology, it delivers clean and stable DC output, protecting sensitive electronic components during repair and testing.

Equipped with a bright digital LED display, the RF4 2003M provides real-time monitoring of voltage and current with 10mV/1mA resolution for highly accurate adjustments. Its intelligent Constant Voltage (CV) and Constant Current (CC) modes ensure stable output under varying loads, while multiple safety features—including an independent output switch, overload protection, and built-in fuse protection—enhance reliability and user safety. (martview.com)

Key Features

• Intelligent Digital Adjustable DC Power Supply
• Adjustable Output Voltage: 0–20V DC
• Adjustable Output Current: 0–3A
• Maximum Output Power: 60W
• High-Resolution Digital LED Display
• 10mV / 1mA Precision Adjustment
• Constant Voltage (CV) & Constant Current (CC) Modes
• Low Ripple & Anti-Interference Design
• Independent Output ON/OFF Switch
• High Accuracy (≤0.5%)
• Overload Protection
• Built-in T3A/250V Fuse Protection
• Compact & Durable Metal Housing
• Stable Output for Sensitive Electronics (martview.com)

Technical Specifications

• Model: RF4 2003M
• Maximum Output Power: 60W
• Output Voltage: DC 0–20V (Adjustable)
• Output Current: DC 0–3A (Adjustable)
• Input Voltage: AC 110V / 220V, 50/60Hz
• Display: High-Precision Digital LED Display
• Resolution: 10mV / 1mA
• Accuracy: ≤0.5%
• Operating Modes: Constant Voltage (CV) / Constant Current (CC)
• Protection: Overload Protection, T3A/250V Fuse, Independent Output Switch
• Output Type: Low Ripple, Anti-Interference Stabilized DC Output (martview.com)

Ideal For

• Mobile Phone Repair
• iPhone & Android Motherboard Repair
• PCB Diagnostics & Testing
• Battery Charging & Activation
• Electronic Circuit Development
• Laboratory & Educational Use
• Professional Repair Workshops
• DIY Electronics Projects

Package Includes

• 1 × RF4 2003M Intelligent DC Power Supply
• 1 × AC Power Cable
• 1 × Output Test Leads
• 1 × User Manual