data logger is an electronic recording device that automatically collects and stores data from sensors or signals over time � Wikipedia In this case, it specifically logs switch status (ON/OFF) instead of analog values. ⚙️ Working principle...
Measuring Range : -40 To 70 Deg C, 0-100% RH Non Condensing
Material : Plastic, Metal, Etc
Feature : Fast Response,Cost Effective,Dew Point Indication Via Software,User Programmable Alarm Thresholds,Start / Stop Logging By Button,USB Interface For Setup & Data Download