The FNIRSI S1 is a feature packed smart digital multimeter with a large color LCD display and rechargeable battery, designed for accurate electrical measurements across a wide range of applications. With automatic range detection, true RMS measurement, and intuitive controls, it provides reliable performance for professionals and hobbyists alike. Equipped with built in NCV (non contact voltage) detection, a flashlight, and auto measurement functions, the S1 makes quick work of common electrical testing tasks, from AC/DC voltage to resistance, capacitance, frequency, and temperature, without the need to manually select ranges. Highlights: True RMS digital multimeter with automatic range selection. Large, easy to read color LCD display. Built in NCV voltage detection for safe live wire identification. Integrated flashlight & data hold function. Rechargeable battery (USB C) for modern convenience. Durable ABS construction and CAT III 1000V safety rating. Specifications: Model: FNIRSI S1. Display: VA color LCD, 9999 counts. Power Supply: Built in 1000mAh rechargeable lithium battery (USB C charging). AC Voltage: 0-1000V (True RMS). DC Voltage: 0-1000V. Resistance: 0-100MΩ. Capacitance: 0-10mF. Frequency: 0-10MHz. Temperature: –20°C to 1000°C (with probe). Non-Contact Voltage (NCV): Yes. Continuity & Diode Test: Yes. Backlight & Flashlight: Yes. Auto Range & Data Hold: Yes. Safety Rating: CAT III 1000V. Material: ABS plastic. Dimensions: ~143×75×19mm. Weight: ~350g. Ideal For: 🔌 AC/DC voltage & current diagnostics. 🔧 Electrical troubleshooting in households & workshops. 📡 Automotive electrical testing. 📘 STEM education and student labs. 📊 Hobbyist electronics & repair projects. 🏠 Live wire detection and safety checks.
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