Professional Quality Digital Detector Air Tester Analyzer HCHO TVOC for Home Use

[Versatile Usage] Ideal for detecting hcho and tvoc in the air, making it for home use.[Premium Material] The product is crafted with quality abs material, providing a sturdy and shell.[Portable Design] Compact and portable, with a convenient cord for easy carrying in your pocket.[Easy Calibration] Comes with a calibration button marked with 'm' for user friendly , ensuring accurate results.[Clear Display] Features a clear led display screen for easy reading of detecting data, ensuring accuracy.