Air Quality Pollution Monitor, Formaldehyde Detector, Temperature And Humidity Have you gone nose blind to household odors or dust? Check multiple measures of your home's air quality. This air quality monitor has a FAN onboard that allows REAL-TIME accurate monitoring of temperature (in C), humidity, formaldehyde (HCHO), total volatile organic compounds (TVOC), and micron-sized fine particulate dust (PM2.5/PM1.0/PM10). Formaldehyde is an environmental carcinogen yet odorless at lower concentrations. Detect low levels of airborne TVOCs not perceivable to the human nose. Problems with allergies? See when you need to change your home?s air filter. Watch the levels of indoor total volatile organic compounds and formaldehyde drop when the windows are opened. Learn where air quality is poorer and where your allergies can worsen. Allergies that are difficult to control with unexplained coughing, runny nose, and shortness of breath may be signs of sick building syndrome. Tips on Use: -Calibrate on first use, esp. if 0.000 indoor readings noted. -If the HCHO, temp, or PM2.5 is inaccurate, use the "Sensor Set" Menu found under SET (press D), then SENSOR (press A) to further calibrate device readings. -Large variations 9.999 TVOC readings do not indicate an error as this instrument is a sensitive electronic nose; environmental TVOCs vary much and high TVOCs often can result from interference from benign fragrances or odors. Specifications: -2.8? color 240 x 320 LCD -DC 5V USB charging w/ 2-3 hrs battery life -HCHO: 0-1.999 mg/m -TVOC: 0-9.999 mg/m -PM1.0/PM2.5/PM10: 0-999 ?g/m -Multiple user options including continuous monitoring As the only US based retailer of this item, we have a chemist on staff to answer any technical questions. Product Features MULTIFUNCTIONAL SCIENTIFIC ? As our newest model, this indoor air quality monitor accurately assesses temperature in Celsius, humidity level, and multiple measures of air quality including concentrations of formaldehyde, total natural synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter (PM2.5/PM1.0/PM10) which travel deeply into the respiratory tract, reaching the lung alveoli. PORTABLE TESTING ? Spot check indoor air quality anywhere or leave device on for continuous monitoring. This easy-to-carry air quality tester can help monitor air quality at home, in the car, and in hotel rooms. The lithium battery provides portable power when DC 5V micro USB charging is not available. Information is displayed on a clear 2.8? 320 x 240 pixel color LCD display. ADVANCED FAN SENSORS ? This air quality monitor has a built-in fan to quickly draw in ambient air to allow REAL-TIME measurements. It incorporates a laser sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to test air quality including formaldehyde and natural/synthetic organic compound levels. HEALTHY HOME? ? Is your family suffering from sick building syndrome? This air quality tester detects organic compounds like formaldehyde which has suspected links to nasal cancer and lung cancer emitted from many household materials. By measuring particulate pollution, an air pollution monitor can also help you know when asthma may worsen and when to change your home?s air filter. ORIGINAL DESIGN USA BASED SUPPORT ? We have Midwest-based technical staff including a chemist to answer any questions you have. Also included will be a 20+ page eBook on Gas and Air Quality Hazards. We have worked with the supplier that holds this air quality detector?s design rights so you can be confident this item is tried and tested. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!