HCHO gas sensor CB-HCHO-V4

VOCelectrochemicalsemiconductor

CB-HCHO-V4 is Cubic fourth generation formaldehyde gas sensor with electrochemical principle. It adopts a dual-channel structure design and unique electrolyte packaging technology for anti-interference. Through mathematical algorithms and scientific calibration, it can simultaneously output formaldehyde and TVOC. With built-in digital temperature and humidity sensor combined with intelligent algorithms, the concentration measurement is more accurate. Features ▪ High sensitivity up to 1ppb ▪ HCHO, VOC in-one design ▪ Full range temperature and humidity compensation ▪ Unique dual-channel design, good anti-interference ▪ Multiple communication methods：URAT、IIC、PWM ▪ Lifetime can reach 3 years (in air) SPECIFICATIONS Working principle Electrochemical >0.1ppm：±25% reading（Reference instrument: Gaseraone，25±2℃，50±10%RH） Resolution HCHO: 1ppb VOC: 0.01ppm TVOC: 0.01ppm Response time T90 50s（@25±2℃，50±10%RH） Working condition 0~40℃；15~95%RH（Non-condensing） Storage condition -20~50℃；0~95%RH（Non-condensing） Working voltage DC (+3. 5V ~ +5.5V) Working current <15mA Signal Output 1、UART_TTL（3.3V） 2、IIC（Reserved） 3、PWM（Reserved） Dimension W23*H32*D7 Lifetime 3 years (@0.1ppm Formaldehyde concentration)