The air quality sensor with the model of M-VOC-5 from ProSense combines advanced MEMS technique & semiconductor technology. The sensor’s conductivity changes according to the concentration of the VOC gas which can be quantified by measuring the conductivity. Thanks to the MEMS technique the sensor has typical advantages of small size, low power consumption, high stability, low cost, etc. Technical Specification Item * Reliable evaluation of indoor air quality *Free from temperature affect *High precision, Fast response * Ultra-low power consumption (<66mW, *High stability *Automatic baseline correction * Adaptability to harsh environmen Application Air cleaners/fresh air system Indoor air quality monitoring Portable devices Smart home Green building Wearable devices 1. RO refers to the output in clean air with temperature of 23 + 5 °C and humidity of 50 + 10%; 2. Sensitivity is defined as R0/Rg, Rg is the sensor resistance in the air of 5ppm ethanol concentration, 23 + 5 °C, 50 + 10%;

3. Sensor Voltage is the voltage applied to the sensor electrodes, and should be kept between 1.5~4V in clean air. 2 All tolerances + 0.15mm unless otherwise stated 2. R1 is designed for modification of sensing performance which is recommended to be kept between 32 and 36mW; 3. Rl should be kept at -^lO kQ to avoid sensor damage; 4. Temperature compensation is not included. The typical influence of t & RH is shown in the following curve Typical Response Curve The typical response of the sensor to to Alcohol and HCHO is in the following curve

RO: resistance in clean air I Rg: resistance in target gas Ra: resistance in clean air at different temperature & humidity le welding furnace shoul r- /woia cnangmg or moving sensor on rne module. > Avoid exposure to organic vapor, organic solvent, silicone vapor. > The gas sensor must be reflow soldering in neutral atmosphere. The welding furnace should have sufficient flow of clean air to maintain the air clean. The maximum temperature is 260 °C. Manual soldering conditions are recommended for a maximum temperature of 350 °C for 5 seconds. > It is recommended to preheat at least 60 min. to...