The Pyle Digital Indoor Air Quality Meter - Smart Carbon Dioxide / Air Pollution Sensor Detector (Measures CO2/Temperature/Humidity) - Universal Indoor Air Quality (IAQ) Meter - Measures Carbon Dioxide, Temperature, Humidity - Ensure Household Safety with Carbon Dioxide Gas Monitoring - Sleek & Stylish Modern Design - Compact & Portable Desktop Style - Removable Stand for Wall Mount Ability - Built-in Rechargeable Battery (or Powered via USB Cable) - Also Features Standard Digital Clock/Calendar Functions: Time & Date Display - Accurate & Reliable Data Readout - Laboratory Tested for Safety Level Pollution Detection - Target Meter Setting: Audible & Visual Alarm Notifications - Built-in Memory: Saves Thousands of Daily Data Records - Easy-to-Read Digital LCD Display Interface - Simple, Hassle-Free Operation - Button-Activated ‘Record’ Function Saves Real-Time Meter Readings - Includes Computer Software for Data Analysis Review (Windows PC Only) - Used for Home, Office, School, Business, Warehouse Air Quality Monitoring. DETAILSFeatures: Universal Indoor Air Quality (IAQ) Meter Measures Carbon Dioxide, Temperature, Humidity Ensure Household Safety with Carbon Dioxide Gas Monitoring Accurate & Reliable Data Readout Laboratory Tested for Safety Level Pollution Detection Target Meter Setting: Audible & Visual Alarm Notifications Built-in Memory: Saves Thousands of Daily Data Records Easy-to-Read Digital LCD Display Interface Simple, Hassle-Free Operation Sleek & Stylish Modern Design Compact & Portable Desktop Style Removable Stand for Wall Mount Ability Built-in Rechargeable Battery (or Powered via USB Cable) Also Features Standard Digital Clock/Calendar Functions: Time & Date Display Button-Activated ‘Record’ Function Saves Real-Time Meter Readings Includes Computer Software for Data Analysis Review (Windows PC Only) Used for Home, Office, School, Business, Warehouse Applications *For Indoor Use What’s in the Box: Digital Air Quality Meter USB Cable Wall Power Adapter Technical Specs: Selectable Temperature Unit Display: Fahrenheit / Celsius Built-in Memory: Saves Up to 12,700 Data Readings Gas Measurement Technology: Non-Dispersive Infrared Detector (NDIR) Particle Measurement Technology: 2.5/Micrometers Particle Matter co2 Measurement Range: 0~9999 PPM co2 Accuracy: +/-70 PPM (+/-3% of Reading 0~5000 PPM) co2 Measurement Resolution: 1 PPM Temperature Measurement Range: (-10~70° Celsius) Temperature Resolution: (0.1° Celsius) Temperature Readout Accuracy: (+/- 0.3° Celsius) Humidity Measurement Range: 0% ~ 99.9% (Relative Humidity) Humidity Resolution: 0.1% Humidity Readout Accuracy: ± 3% (10~90%) Operating Conditions: (0~50° Celsius)~85% RH Construction Material: Engineered ABS Built-in Rechargeable Battery: 3.7V Li-iOn, 2000mAh Power Supply: 110/220V AC to DC 5V USB Wall Adapter Dimensions (L x W x H): 4.2’’ x 4.2’’ x 2.3’’ - inches What's In The BoxDigital Air Quality Meter USB Cable Wall Power Adapter MANUALS & DOWNLOADS PCO2MT05 - Manuals