ស្លាក: កាបូនឌីអុកស៊ីដ, ឧស្ម័ន co២ វិភាគ, CO២ វិភាគ, ថោកកាបូនឌីអុកស៊ីដ, គុណភាពខ្ពស្ម័ន co២ វិភាគ, ប្រទេសចិន co២ វិភាគផ្គត់ផ្គង់.
|The only problem is that there are no user instructions in English. Only in chinese language. Correctly measured after several days. This is because autocalibration start after 4-5 days.The smallest during this period is considered to be 399 ppm. If the room is not ventilated, there will be an incorrect calibration. Autocalibration periodically.|
|three come device, packed well. i wrote the seller before shipping, and it is well packed device that i do not to reliving)))). come to instrument brand box without damage, dents., постарался seller so. device itself the pretty interesting, reading accurate, сравнивал device different temperature and humidity, same reading. походу меряет co2 real time box открываешь immediately start co2 drop, gradually closed when the box. as there are three leds which show the allowable co2 levels. detectors on aliexpress выбирал long carbon dioxide revised all have, as a video to them, dwelled on this instrument. or small children who have so co2 планируются level'll buy this device to track))). fast ship the seller, high quality for co2 device, присланное for me message thanks a lot!!!!!|