Carbon Dioxide Temperature and Humidity Detector 5 in 1 High Accuracy Portable USB Rechargeable Multifunctional Detector Silver Item Type: Multifunctional Detector Material: ABS Voltage: 5V Current: 2A Memory Card Type: Micro Storage Card Memory Card Capacity: 128MB CO₂ Measurement Range: 400-5000PPM Resolution: 1PPM CO₂ Measurement Accuracy: ±50ppm or ±5% of the Reading CO Measurement Range: 0-1000PPM Resolution: 1PPM CO Measurement Accuracy: ±10PPM or ±5% of the Reading Temperature Measurement Range: -10℃-60℃; ±2℃ Humidity Measurement Range: 5%-95%; ±5% Atmospheric Pressure Range: 300-1100hPa Relative Accuracy (950-1050hPa at 25℃): ±0.12hPa Absolute Accuracy (950-1050hPa at 0-40℃:) ±1hPa Sound Level: 85dB (3M) Working Temperature: 0℃-50℃ Working Humidity: 0-95% (Non Condensing) Battery: Polymer Lithium Battery 3200mAh (included) Gross Weight: Approx. 417g/14.7oz