Car Air Quality Monitor 7 in 1 Detector CO2 CO Pressure Temperature Humidity Meter White 5V Item Type: Car Air Quality Monitor Model Number: PT04 Color: White Material: Fireproof ABS Detection Function: CO2, air pressure, humidity and temperature Carbon Dioxide Range: 400-5000PPM Carbon Monoxide Range: 0-1000PPM Atmospheric Pressure Range: 300-1100hPa Measuring Range: - Relative Accuracy (950-1050hPa at 25℃): ±0.12hPa Accuracy: - Absolute Accuracy (950-1050hPa at 40℃): ±1hPa Temperature Measurement Range: -10~60℃, Accuracy: ±2℃ Humidity Measurement Range: 5%-95% RH, Accuracy: ±5%RH CO2 Sensor: For NDIR CO2 sensor CO2 Sensor Resolution: 1PPM CO Sensor Resolution: 0.5PPM Operating Temperature: 0℃-50℃ Operating Humidity: 0-95% (non condensing) Response Time: <60S Power Supply: Built in lithium ion battery 5V, Battery Capacity: 3200mah Input Voltage: DC 5V 2A Application: For Tuya smart app Small Memory Card: 128MB(built in)