Smart Air Quality Detector LCD Display Carbon Dioxide Temperature Humidity Monitor Item Type: Air Quality Monitor Model: PT02 Material: ABS Uses: Household, kitchen, bar, restaurant, office, warm and humid greenhouse, etc. Basic Parameters: Temperature Detection Range: -20℃~60℃; ±2℃ Humidity Detection Range: 5%~95%RH; ±5%RH CO2 Detection Range: 400~5000ppm, Accuracy: 1ppm CO2 Detection Accuracy: ±50ppm or ±5% reading TVOC Detection Range: 0~20mg/m³ PM1.0 Detection Range: 0~500μg/m³ PM2.5 Detection Range: 0~500μg/m³