■ Range:0~1.999mg/m3(HCHO); 0~9.999mg/m3(TVOC)

■ Detection Technique: Semiconductor sensing technology

■ Sample Mode: Diffusion type; Density Unit: mg/m3 & PPM

■HCHO alarm funtion &Datas recorded by graphic table

■Calibration funtion

■5-120 sec.record gay for TVOC & HCHO Thermo/Humidity

■ Built-in Rechargeable Lithium battery: 1500mAh

■Data record & clock display 

■ Dimenison: 150X67.5X24.5mm

■ENGLISH/CHINESE manuals