FS899L Digital Multimeter Tester, 2026 Upgraded, 6000 Counts True RMS AC/DC Voltage Tester, USB C Rechargeable Electrical Testing, Automatic Digital Display with Color Screen, NCV, Voltage
Built Tough, Tested Safe: Your safety comes first. The FS899L is built to CAT.III 1000V / CAT.IV 600V safety standards, so it can handle high-energy circuits without compromising protection. Dual fuses and overload safeguards help prevent burns and shocks, and CE & RoHS certifications give you peace of mind—whether you're working under the hood or inside a panel.
True RMS Precision You Can Trust: Get lab-grade accuracy with every reading. True RMS technology and 6000 counts deliver reliable measurements across the board: AC/DC voltage (60mV–600V, ±1.2–1.5%), current (300mA–10A, ±2.2–2.5%), capacitance (10nF–60mF), resistance (600Ω–60MΩ), plus frequency and ambient temperature. Everything a pro needs to diagnose with confidence.
One Tool, Endless Diagnostics: From household outlets to industrial machinery, the FS899L handles it all. Measure AC/DC voltage and current, continuity, resistance, capacitance, frequency, and even detect live wires without contact (NCV). Add ambient temperature readings to the list, and you've got a go-to tool for HVAC and appliance troubleshooting—versatility built right in.
Work in the Dark, See It All: Cramped panels and dim basements? No problem. The large 4.8-inch backlit screen gives you clear, easy-to-read readings in low light, while the built-in flashlight lights up your workspace. Need to capture a reading in a tight spot? Data hold locks it in—so you don't have to contort to see the screen.
USB-C Rechargeable, Always Ready: Skip the disposable batteries. A full charge takes just two hours via USB-C and gives you up to eight hours of continuous use—plenty of time for long jobs in the shop, lab, or field. Modern, cost-effective, and ready when you are.
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