Meet the FNIRSI S1 Smart Digital Multimeter your all-in-one electrical diagnostics powerhouse. Designed for professionals and hobbyists alike, it combines precision, durability, and user-friendly intelligence in a compact package.

Key Features

• Wide Measurement Range: Accurately measures AC/DC voltage, resistance, capacitance, frequency, temperature, diode, continuity and non-contact voltage (NCV).

• True RMS & Auto Mode: Delivers precise readings on complex waveforms and automatically identifies DC/AC voltage, resistance and continuity—no dial-twisting required.

• Intelligent Protection: Anti-burning circuitry guards against overloads, while a low-battery indicator warns you before power runs out.

• Rapid Sampling: Captures data at up to 3 samples per second, displaying results on a spacious 9999-count backlit LCD.

• Handy Data Hold & Alerts: Freeze readings for easy reference, and hear a buzzer when continuity is detected.

• Built-In Illumination: Work in any environment with an integrated flashlight and backlit display for low-light conditions.

• Rechargeable & Portable: Internal lithium battery charges via USB (power bank, computer, or wall adapter) no disposable cells needed.

• Rugged Construction: Housed in impact-resistant ABS for years of reliable service.

• Versatile Use: From household outlets and automotive circuits to industrial panels and electronics servicing -installs and removes quickly for on-the-go testing in kitchens, bathrooms, offices and beyond.

In the Box

• FNIRSI S1 Multimeter

• USB Charging Cable

• Insulated Test Leads

• User Manual

Whether you’re troubleshooting home wiring, diagnosing vehicle electronics or performing routine maintenance in the workshop, the FNIRSI S1 Smart Digital Multimeter delivers the accuracy, safety and convenience you need every time.