TK422PLUS Digital HCHO / CO2 / TVOC Meter with Humidity & Temperature Measurement IAQ Tester with Professional NDIR Sensor Ideal for Air Quality Monitoring in the Home, Offices, School, Hotels and Others

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Minimum Order Quantity (MOQ) : 10 piecesFor inquiries and orders, you may contact us via our chatbot Features: Multiple parameter measurements (HCHO, TVOC, CO2, Temperature, and Hu midity) Audible HCHO alarm Large LCD screen Battery strength indicator Switchable temperature unit Power saving mode function Rear air vent design Color indicator for CO2, HCHO and TVOC measurement Formaldehyde (HCHO) Green: concentration Show more