USB temperature data logger, Temperature measuring range: -18-55°C, High accuracy, Temperature accuracy: ± 0.1°C, Humidity measuring range: 0-100% r.F, Humidity accuracy: ± 2%, Storage capacity: >1,000,000 measured values and 500 measured values per measurement channel, Sample rate: 10 s-24 Std., Incl. 2 x AAA 1.5 V batteries, Battery life: >1 year, Start modes: immediate/at the touch of a button/delayed start/triggered by parameters, Alarm: Tone/LED/Display, Protection class: IP4X