OLCT10 Fixed Gas Detector for Nitrogen Dioxide (NO2). Range 0-30ppm. Output 4-20mA. Power supply 15-30vDC, consumption 30mA max. Operating temperature -10 to +50°C. Life span 24 months. Response time less than 120 second (T90). Plastic housing, 118 x 157 x 60mm, IP65. OLCT10 Fixed Gas Detector for Nitrogen Dioxide (NO2). Range 0-30ppm. Output 4-20mA. Power supply 15-30vDC, consumption 30mA max. Operating temperature -20 to +55°C. Life span >24 months. Response time less than 90 second (T90). Plastic housing, 118 x 126 x 63mm, IP65.