FNIRSI S1 Large Screen Digital Display Smart Multimeter

FNIRSI S1 Smart Digital Multimeter with NCV and Temperature MeasurementAuto Identification Multimeter | True RMS | NCV Detection | Capacitance and Frequency Test | USB Type-C Rechargeable

The FNIRSI S1 Digital Multimeter is a compact measuring instrument designed for electrical diagnostics, electronics repair and general maintenance work. It combines automatic identification, practical measurement functions and rechargeable operation in a portable housing.

The device is suitable for measuring voltage, resistance, capacitance, frequency and temperature, while also supporting continuity test, diode test, NCV detection and live wire search. Its simple control layout and rechargeable design make it suitable for home use, workshop tasks and basic electrical troubleshooting.

Key Features

• Automatic identification: supports simplified operation during routine electrical measurements.
• True RMS measurement: improves AC measurement accuracy.
• NCV detection: allows non-contact voltage sensing.
• Live wire detection: supports phase identification during electrical checks.
• Data hold function: allows measured values to remain on screen for easier reading.
• Built-in flashlight: helps when working in low-light conditions.
• Rechargeable design: built-in battery can be charged through a power bank or computer.
• Anti-burning protection: supports safer operation during general use.

Measurement Functions

• DC voltage
• AC voltage
• Resistance
• Capacitance
• Frequency
• Temperature
• Continuity test
• Diode test

Technical Specifications

• Model: S1
• Voltage measurement: AC / DC
• Frequency test: supported
• Capacitance test: supported
• Resistance test: supported
• Temperature test: supported
• NCV: supported
• Live wire detection: supported
• Display: large LCD display with backlight
• True RMS: supported
• Charging port: USB Type-C
• Power supply: built-in rechargeable battery
• Body material: ABS

Package Contents

• FNIRSI S1 Digital Multimeter ×1
• Temperature Probe ×1
• USB Charging Cable ×1
• Test Leads (Meter Pen) ×1 Set
• User Manual ×1

The FNIRSI S1 provides a compact and convenient solution for voltage testing, electrical troubleshooting and everyday diagnostic work.