Analysis and Comparison of VOCs Monitoring Technology Sensor technology: Common sensors for PID, FID; PID sensor response to low alkanes; FID sensor sensitive to hydrocarbon; Both monitoring accuracy up to PPb, but can not distinguish between VOCs species; Commonly used in hazardous area alarm, indoor air monitoring ; Chromatography: The total amount of VOCs and characteristic components can be measured by column separation; however, the analysis cycle is long; it is generally used for on-line monitoring of fixed pollution sources; Mass spectrometry technology: high sensitivity (ppt), short response time, measurement of many components, no calibration; but the price is relatively expensive; generally used in laboratories, hospitals, environmental emergency / traceability monitoring; Spectral Technology: Commonly used technologies are FTIR, DOAS, TDLAS; fast response, generally used for regional ambient air monitoring / pollution source monitoring. Equipped with 10-inch Tubeless fat Tires which has long wear-resistance, anti-explosion, long battery life and strong bearing capacity, it designed to increase riding safety. Scoter Electric Scooter,Folding Electric Scooters,Fat Tire Electric Scooter,Electric Foldable Fat Tire Scooter Yongkang Mysail Technology Co., Ltd. , https://www.mysail-scooter.com