Elitech PDF USB Temperature Data Logger Reusable Recorder 32000 Points High Accuracy (Extra External Sensor)

* One external sensor (around 39-inch) and one internal sensor,a wide range of temperature measuring(-22℉~158℉) * Upgraded version of RC-5 with new functions of Auto PDF report (encryptable via PC or Android phones); restart logger by button pressing; double battery life up to 12 months. * Built-in USB port, no cable, no reader, even no software required to download data. Lower power consumption and battery replaceable; records up to 32,000 points. * More features as IP 67 waterproof protection, 5 alarm ranges, ℃/℉ options, Excel/PDF report formats, free software for windows & macOS and etc. * Please email/message us for the calibration certificate.: Requires to set the sensor type to "internal" on the software for internal sensor usage, please do not just remove USB cover! 24/7 US Technician Support via Email and Phone.