Shenzhen Ao Sien formaldehyde, benzene, TVOC indoor air quality testing instrument triple room ..

Triple indoor air quality testing instrument This instrument GB / T18204.26-2000 provisions in accordance with national standards "in public places Determination of formaldehyde in the air", exclusively developed to simultaneously detect three indoor pollutant gases (formaldehyde, benzene, After TVOC) field instrumentation, gas detection time each time by a microcomputer control system to adjust, to set the time automatically stop working, and the spectrophotometric field directly on the LCD formaldehyde readings result. Spectroscopic detection program uses the most advanced international ts1230 spectroscopic techniques, formaldehyde detection reagent for optical frequency spectral colorimetric, spectral samples obtained precise results. The instrument is simple, reasonable design, beautiful appearance. The device can be used: for supervision, monitoring agencies, management companies, decoration companies, construction companies, factories, mines and workshops can also be used for research, teaching, laboratory. This instrument is applicable; bedroom, office, hotels, restaurants, shopping malls and other places, the instrument looks, easy to carry, suitable for field use. Formaldehyde detection principle: indoor air quality spectrophotometer detector principle is based on the sample of formaldehyde reagent reacts with blue compound selectively absorb visible light and the establishment of a colorimetric assay. By spectrophotometric module can show content of harmful gases in the sample directly on the LCD screen. Specifications: detection limit: 0.02 mg / m3 (the sample size is 5 liters) measuring range: 0.00-2.20 mg / m3 (the sample size is 5 liters) Accuracy: ± 5% Measurement Methods: GB phenol reagent source: LED silicon photo diodes, wavelength 630 nm Operating temperature: 0-40 degrees Celsius main technical parameters: Voltage AC 220V power 5 * 2.5W flow 6 * 1.5L / min Weight 3KG Operating current 5A Dimensions 300 * 200 * 160mm required reagents: formaldehyde detection reagent a (liquid) formaldehyde detection reagent bis (powder) formaldehyde detection Reagent (liquid)