Newentor CO2 Monitor with Voice Alert - Indoor Air Quality Meter, Carbon Dioxide Detector, Temperature & Humidity Sensor - Large Display CO2 Tester for Home, Office, RV, Grow Tents - 2 Pack Black - Perfect for Air Quality Monitoring in Bedrooms, Classrooms, and Greenhouses

Product Description

Newentor Carbon Dioxide Detector Track air quality instantly to safeguard your environmental health. Real-Time CO2 Monitor 4-Inch Immersive Display Crisp visual data presentation with an eye-friendly large screen. Dual Power Supply Seamlessly switch between battery mobility and wired reliability. Supplied by power cord (cable included, charger not included): update the CO2 value every 6s. Supplied by battery (not included): update the CO2 value every 20 minutes, or manually push the DETECT button to update in real-time. 3-level Backlight Control 3 adjustable levels for any lighting condition. Supplied by power cord (cable included, charger not included):can set the backlight to High or Low or Off. Supplied by battery (not included):make the backlight light for 10 seconds when the top button is touched. 2 Placement Options Easily adapts to your space needs. Professional-grade Swiss sensors deliver lab-accurate CO2 measurements. Help to combat hidden airborne threats in modern living. Learn More about the CO2 Detector Detection Technology Photoacoustic Sensing Technology Display Mode LED digital display CO2 Sensor Sensirion SCD41 Sensor Power Supply USB to DC charging cable(cable included, charger not included) or Battery(3 X AAA Batteries, not included) CO2 Range 400-5000 ppm Operating Voltage 5V 0.5A Temperature&Humidity Range 14.18℉-122℉ & 20%-95% Package Includes CO2 detector, USB power cord, and user manual Q: How do I turn off the audible alert? A: Press the ALERT button to turn the audible alert on or off. When there is no speaker icon on the screen, the sound will not sound even if the measured value reaches the set warning value. Warm Tip: We recommend turning off the audible alert before bedtime to avoid sleep disruption, as rising CO2 levels during the night may trigger the alert and disturb your rest. Key features: Photoacoustic sensing technology for enhanced reliability±40 ppm measurement accuracyOptimized low-power operationCustomized CO2 alertColorful and vivid screenTemperature, humidity, clock, alarm, calendar integration