
This is a wireless logger that measures relative humidity and temperature indoor a glasshouse or a growth chamber.
Relevant specifications
Relative humidity: 1% to 90% (accuracy is +/- 2% from 20 to 80%)
Temperature: -20 to 70 °C (accuracy is +/- 0.2 from 0 to 50 °C)
Materials
2 AAA replaceable batteries in ONSET HOBO MX1101
Mobile device with HOBOConnect (App Store or Google Play)

Also check out the Quick instruction guide (pdf) and manufacturer manual.
You will need to book through Bookitlab to use this equipment. You may request for Environmental sensor use/other equipment training at Bookitlab Reservations page if you are using the equipment for the first time.