Brand: FORENSICS DETECTORSModel: FD-CO2000-USBUser Manual: Click HereBlog Article: Click Here Features: π USES: Classrooms, business, retail, restaurants, home, and car. AB841 compliant. π¬ ACCURATE: Employs advanced NDIR sensor technology with a 10-year life. π BATTERY: Li-Ion battery-powered with USB recharge for up to 8 hours of cordless operation. Also powered with direct USB power. πͺ SIMPLE: Easy to use, not complex, basic, and accurate CO2 monitor. Product stable on table or mounted to the wall. π΅οΈ TRUSTWORTHY: ** 1-year limited warranty ** 100% quality guaranteed ** The Challenge: Carbon dioxide monitoring is an imperative part of COVID-19 preparedness planning. CO2 is exhaled with aerosols containing pathogens such as SARS-CoV-2 from COVID-19 infected people. Therefore, CO2 measurements can be used as a proxy of indoor virus concentrations - as shown by research from the University of Colorado & Harvard School of Public Health. Various government legislatures and professional organizations such as ASHRAE recommend indoor air quality monitoring to reduce the risk of COVID-19 infection. The Technical University of Berlin shows that increasing uncontaminated air reduces indoor concentrations of CO2 and other aerosols. In turn, this strategy of fresh air ventilation lowers one's infection risk. Details: This is a simple and accurate CO2 monitor by FORENSICS DETECTORS. Complies with AB841 with 1100 ppm alarm and max feature. This product tracks indoor CO2 levels and is suited for both home and light industrial use, such as grow rooms, incubators, beer, hydroponics, cars, and transport vehicles. The monitor operates with any USB charger and for up to 8 hours when the battery is fully charged. The monitor also detects humidity, temperature, and time. Your CO2 monitor is already calibrated so just turn it ON and GO! The monitor incorporates a high-quality advanced NDIR sensor that detects with 1 ppm resolution. Included: CO2 monitor, USB charging cable, and user manual. Calibration Options: Calibration Service by Forensics DetectorsCalibration Tutorial (DIY) Sensor Specifications Gas Sensor Type: NDIR Gas SensorCarbon Dioxide (CO2) Detection: 0 - 5000 ppm with 1 ppm resolutionError: Β± 70 ppm or Β± 5% of reading (larger of the two)Temperature Compensation: Β± 0.1% of reading per FResponse Time: < 1 minuteWarm-Up Time: 20 seconds Temperature Sensor Specifications Operation Temperature: 32F - 195FResolution: 0.1FError: Β± 5% of readingResponse Time: < 1 minute Relative Humidity Sensor Specifications Range: 5 - 95% RHResolution: 1%Error: Β± 5% of readingResponse Time: < 1 minute General Specifications Storage/Operation Temperature: 32F - 122F, < 95% RHExpected Sensor Life: 10 yearsOperating Voltage: Li-Ion battery 1000 mAhDimensions: 120 mm x 90 mm x 35 mmWeight: 170 g (3.6oz)Voltage Input: USB DC 5V via mini USB B type input connector (USB charging cable included)