OAKTON® TempLog Temperature Datalogger helps ensure ambient temperature and humidity levels remain stable around the clock for months at a time. Housings are waterproof and dustproof.TempLog Temperature Logger is IP65 rated. Oakton® Software (sold separately) with RS-232 Serial Cable is required to download readings to a computer and select sampling rates from once/10 seconds up to once/2 hours. Other software capabilities include: delayed or immediate start and/or overwrite data or stop when full; a 20-character I.D. line for naming the device/room being monitored; graphic/tabular displays for spreadsheets; display options and pinpoint analysis for reading individual points or a difference between two points.