Portable Formaldehyde detector F-7301A

Portable Formaldehyde Detector Model: F-7301A instrument information: ● high precision and high sensitivity imported electrochemical formaldehyde sensor ● Anti-Auto-Protect feature high concentrations of gas shocks ● Full software calibration, auto-zero, simple operation ● Built independent gas room, built-in high-performance fast response ● gas pump, flow rate 500-800 ml / min ● Built-in high-capacity rechargeable battery, long working hours with backlight LCD ● ● upper and lower limit alarm can be set arbitrarily, and comes with zero target point calibration function ● Automatic tracking zero, span drift and temperature compensation ● data recovery, eliminating the worries caused by misuse technical indicators: Detection of gas: air formaldehyde detection principle: Electrochemical measuring range: 0 ~ 10ppm, 20ppm , 50ppm, 100ppm, 500ppm, 1000ppm selectable resolution: 0.001ppm (0 ~ 10ppm); 0.01ppm (0 ~ 100ppm); 0.1ppm (0 ~ 1000ppm or more) Accuracy: ± 2% FS Response time: ≤50 seconds Recovery Time: ≤60 seconds Repeatability: ± 0.5% linearity error: ± 1.0% uncertainty: 2% Rd ± 0.1 Zero drift: ≤ ± 2% FS / month span drift: ≤ ± 2% FS / month life: 2 In the above-proof mark: ExdⅡCT6 Working temperature: -20 ℃ ~ + 70 ℃ Relative Humidity: 10% ~ 95% RH Power: 12VDC, rechargeable Weight: about 1.5Kg Volume: 20 * 20 * 8cm Accessories: carrying case 1, Sampling handle a Charger 1 Warranty: 1 year