UNI-T UT338A Formaldehyde vs UNI-T UT938C Pm2.5 Which One To Buy?

51okfew0r9l-_sl1000_

UNI-T UT338A Formaldehyde Monitor Detector Formaldemeter Temperature Humidity Moisture Meter with Alarm is a kind of indoor formaldehyde gas concentration tester which adopts the newest imported electrochemical sensor and high precision operational amplifier chip. It can continuously translate the formaldehyde gas concentration in the air into the electrical signal in real time and show the…