FNIRSI S1 Digital Multimeter

The FNIRSI S1 is a versatile digital multimeter designed for both hobbyists and professionals. With a 9999-count VA color display, True RMS measurement, and a wide range of functions including AC/DC voltage, resistance, frequency, temperature, continuity, and diode testing, it handles everything from PCB repair to automotive diagnostics. The built-in NCV detection and live wire check enhance safety, while the Smart Anti-Burn protection prevents damage from overloads. Powered by a rechargeable 1000 mAh lithium battery via USB-C, it's eco-friendly and convenient. The included temperature probe, test leads, and carrying case make it ready for any task.

• True RMS for accurate readings on non-sinusoidal waveforms
• 9999-count display with high resolution
• NCV and live wire detection for contactless voltage sensing
• Auto range and data hold for ease of use
• Rechargeable battery with USB-C charging
• CAT III 1000V safety rating

Whether you're an electrician, technician, or DIY enthusiast, the FNIRSI S1 delivers reliable performance and essential safety features in a compact, portable design.