Extech Compact temperature and humidity dataloggers

Place in small areas without AC outlets: refrigerators, freezers, vans, trucks, and storage crates

This versatile, low-cost datalogger includes a real time clock so you can program an immediate or delayed start time. You can also program high and low set points. The LED lights on the front panel flash when the datalogger is recording and reaches the set points. Set the flexible datalogging interval to collect sample data from 2 to 2 hours at 1 second increments.