QT-03 series Button Temp/HR logger is used to measure the air temperature and relative humidity or soil temperature. the meter is small in size and has a stainless steel shell.

QT-03 Button Data Loggers are water resistant, powerful, and exceptionally affordable. the QT-03-2 Temperature Logger will log 8,000 measurements, while the QT-03-1 Temp/RH Logger will record 4,000 measurements - 2,000 each for temperature and humidity. They log temperatures features a battery life of up to 10 years, depending on measurement interval. Actual size is 17.35 mm x 5.89 mm.