One channel Smart Datalogger – Outdoor Temperature, certifiable ACCREDIA ( Precision 0,2 °C in the range by 0 to 50 °C and 0,5 °C in the range by -30 to 0°C - Risolution 0.01 °C) - Type "AA" lithium internal battery for a battery life of five years with samples every ten minutes - USB Interface. IP65 sealing.