Lascar Temperature Data Logger, USB, Battery-Powered, Model Number: EL-USB-1-PRO, Maximum Temperature Measurement: +125 °C, Best Temperature Measurement Accuracy: ±0.2°C, IP Rating: IP67, Minimum Operating Temperature: -40°C, Maximum Operating Temperature: +125°C, Alarm: Yes, Battery Life: 2 Years, Battery Type: 2/3AA.