PTM400-CH2O portable indoor environmental testing equipment formaldehyde detector

PTM400-CH2O portable indoor environmental testing equipment formaldehyde detector Description: PTM400-CH2O indoor environmental testing instruments Portable Formaldehyde Detector Features: * looks clean and elegant, explosion-proof, shock-proof design * high-precision, high-resolution, fast response * Use Large-capacity lithium rechargeable battery, can work long hours * by sampling can handle samples up to 1.5 meters distance * Digital LCD backlit display, audible alarm * Upper and lower limit alarm can be set arbitrarily, can be zero and any destination point calibration, built-in temperature compensation, easy maintenance * display the value of the magnification can be set to restart normal * Wide range, maximum range up to 50000ppm, 100.00% Vol, 100.0% LEL * simple operation, with data recovery, eliminating misuse causing worries PTM400-CH2O formaldehyde indoor environmental testing instruments Portable Detector Specifications: Detection of gas: formaldehyde detection principle: Electrochemical Detection range: 0 ~ 5ppm, 10ppm, 20ppm, 50ppm, 100ppm, 500ppm, 1000ppm selectable resolution: 0.001ppm (0 ~ 10 ppm); 0.01ppm (0 ~ 100 ppm); 0.1ppm (0 ~ 1000 ppm) detection method: pump-priming Display: LCD LCD backlight display detection accuracy: ± 2% .FS Alarm: sound and light alarm (alarm point adjustable) Response time: less than 30S Recovery time: less than 40S linearity error: ± 1.0% uncertainty: 2% Rd ± 0.1 Zero drift: ≤ ± 2.0% FS / Year Span drift: ≤ ± 1.0 % FS / month Power supply: DC3.6V Sensor life: more than 2 years Environment: Temperature -20 ℃ ~ + 70 ℃; relative humidity ≤95% RH (non-condensing); to be ordered using the battery in condensing environments. Capacity: 3.6VDC, 5000mA, with charging protection function Dimensions: 180 × 190 × 100mm (L × W × H) standard accessories: 0.8m handle a sample, a carrying case, charger Weight: 1.5Kg