Product description: Fluorine content measuring instrument is a perfect combination of advanced electronic technology, sensor technology and software design, it is the most cost-optimal fluoride content concentration analysis instrument of laboratories, widely used in fluoride test analysis of drinking water, surface water, sea water, sewage and industrial waste water, and the determination of fluorine in mineral materials, organic materials and biological materials. This instrument is built-in microprocessor chips, good looks, easy to use, with the following salient features: Technical Parameters Fluorine content: Measuring range electric meter: (0.00 ~ 9.00) pF; supporting: (1.00 ~ 6.00) pF Display Units pF, mol/L, mg/L, ppm Accuracy ± 0.01 pF Input current ≤2×10-12 A Input impedance ≥1×1012 Ω Stability ±0.01 pF/3h Temperature compensation range (0 ~ 50)℃(automatic or manual) mV: Measuring range -1999.9mV ~ 0 ~ 1999.9mV Resolution 0.1mV Accuracy ±0.1% FS