UNI-T UT338A Digital Formaldehyde Meter (HCHO & TVOC Detector) – Air Quality Monitor with Real-Time Concentration & Temperature/Humidity Testing

Overview 

The UNI-T UT338A is an advanced, professional-grade digital air quality detector designed to measure hazardous formaldehyde (HCHO) and Total Volatile Organic Compounds (TVOC) in indoor environments. New office spaces, freshly painted homes, newly manufactured wooden furniture, and industrial workshops often emit toxic gases that pose long-term health risks. Equipped with a high-sensitivity electrochemical sensor, real-time visual and acoustic alarms, and concurrent temperature and humidity monitoring, the UT338A provides accurate, reliable indoor air quality audits on Hall Road and beyond.

Key Features 

• High-Precision Electrochemical Sensor: Accurately detects trace levels of formaldehyde gas and volatile organic compounds with fast response times.

• Dual Monitoring (HCHO & TVOC): Simultaneously measures and displays concentrations of formaldehyde and TVOC in mg/m³ or ppm units.

• Audible & Visual Alarm System: Configurable safety thresholds trigger flashing screen alerts and buzzer warnings when indoor pollutant levels exceed safe standards.

• Integrated Climate Monitoring: Built-in ambient temperature and humidity tracking helps evaluate environmental conditions that influence gas evaporation rates.

• Data Storage & Max/Record Mode: Easily review maximum, minimum, and average recorded pollution peaks during long-term testing sessions.

• Rechargeable Battery Operation: Powered by a built-in high-capacity lithium battery for extended field testing without constant battery changes.

Technical Specifications 

Common Applications 

• Air quality testing for newly renovated homes, apartments, and commercial offices before move-in

• Auditing indoor air pollution emitted by new wooden furniture, carpets, and laminates

• School, daycare, and hospital environmental safety checks

• Industrial workplace monitoring for volatile organic chemical exposure