Indoor Air Quality Monitor,for Co2, Temperature and Relative Humidity

[PREMIUM DETECTOR] This multifunctional air quality detector can accurately detect the current CO2 concentration, temperature, and humidity in the air. It can help you understand indoor air quality at a glance.[CO2 CONCENTRATION STAGE & SOUND ALARM] This CO2 detector is designed with 3 stages of CO2 concentration-normal stage (400-700 ppm), warning stage (700-1500 ppm), and dangerous stage (1500-5000 ppm). It will alarm you when the detected CO2 concentration is beyond the safe value you customized.[CONVENIENT CALIBRATION] to ensure the accuracy of measurement, this CO2 Detector supports the calibration function. Press three buttons at the same time in an open environment and let it stand for 200 seconds to calibrate this CO2 meter easily.[LONG BATTERY STANDBY] A 2400 mAh lithium battery is embedded inside the indoor air quality monitor, supporting a long time of continuous use, before it adopts a large and distinct LCD screen for ease for temperature or data viewing. display based on your need.[WIDE APPLICATION] A hanging hole is designed on the back of this portable CO2 detector so that you can hang it up to the wall for easy viewing. The indoor CO2 meter is perfect for use in grows, offices, kitchens, schools, kitchens, schools cellars, and cars.We spend 90 % of our time indoors, where the air is often 2-5 times worse than the air outside. Continuous monitoring of indoor air quality is essential to minimize negative health effects, prevent illness, and increase productivity, energy, and good health.The PTH-9C CO2 Meter is the perfect solution for homeowners who want to have a complete overview of three factors of the room air: Carbon Dioxide (CO2), Humidity and Temperature.What are the advantages of the PTH-9C CO2 meter? Unique design with the latest two-component NDIR sensor. 2022 latest version of CO2 meter. It features the latest dual NDIR sensor on the market, plus a unique honeycomb design for faster heat dissipation and better responsiveness.Alarm value setting. Double click the on/off button to adjust the CO2 meter alarm value; long press the + button to turn off the alarm. Easy calibration. After turning off the device, long press the three buttons to enter calibration mode (countdown from 200 seconds). Make sure to do it outdoors if no one is present.A big, beautiful and simple display, easy to use and even a wall mount feature.Colour: blackMaterial: ABSSize: 9 x 9.77 x 4cmPackage Contents:1 x detector1 x usb cableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.