Item Parameter Detection gas HCHO Measurement Range 0-10 ppm Max detecting concentration 50 ppm Sensitivity (0.550.25) A/ppm Resolution ratio 0.02ppm Response timeïïT90ïï 60S Load resistanceïïrecommendïï 100 Repeatability 2 output value Output Linearity linear Zero driftïï-2040ïï 0.2ppm Humidity Range 1590RH Temperature Range -2050

Target Gas CH2O Interference Gas Alcohol, CO &ect. Output Data UARToutput(3VTTLElectrical Level) Working Voltage 3.7V5.5V Warm up time ï3 minutes Response time ï60s Resume time ï60s Detection Range 0ï5ppm

Output Data DAC(0.42V standard voltage output，corresponding concentration: 0 full scale ) UARToutput(3V TTL Electrical Level) PWM (3V) Working Voltage 3.7V5.5V Warm up time ï3 minutes Response time ï60s Resume time ï60s Detection Range 0ï5ppm Resolution ï0.01ppm Operating Temp. -20ïï50ï

Measurement Range: 0 “ 100 ppm Resolution: 0.1 ppm Maximum Overload: 200 ppm Sensitivity: 150 nA/ppm ± 100 nA/ppm Response Time: T50 < 20 sec. / T90 < 120 sec. Weight: < 6 g Dimensions (sensor): 20 x 16.6 mm (without pins)

Item Parameter Detection gas Formaldehyde (CH2O) Measurement Range 0-5 ppm Max detecting concentration 20 ppm Sensitivity 0.25-0.60µA/ppm Resolution ratio ‰0.02ppm Response time（T90） ‰60S Load resistance（recommended） (120/200/300)Î

Measurement Range: 0 “ 5 ppm Resolution: 0.01 ppm Maximum Overload: 100 ppm Sensitivity: 150 nA/ppm ± 100 nA/ppm Response Time: T50 < 20 sec. / T90 < 120 sec. Weight: < 6 g Dimensions (sensor): 20 x 16.6 mm (without pins)

Measurement Range: 0 “ 5 ppm Resolution: 0.01 ppm Maximum Overload: 100 ppm Sensitivity: 150 nA/ppm ± 100 nA/ppm Response Time: T50 < 20 sec. / T90 < 120 sec. Weight: < 0.7 g Dimensions (sensor): 11.5 x 11.5 x 5.5 mm (without pins)

Measurement Range: 0 “ 100 ppm Resolution: 0.1 ppm Maximum Overload: 200 ppm Sensitivity: 150 nA/ppm ± 100 nA/ppm Response Time: T50 < 20 sec. / T90 < 120 sec. Weight: < 0.7 g Dimensions (sensor): 11.5 x 11.5 x 5.5 mm (without pins