testo Saveris 2-T2; WiFi data logger (wireless LAN) with display, for measuringtemperature, two connections for external NTC temperature probes or door contacts, incl. USB cable, wall bracket, batteries testo Saveris 2-T2 DIN EN 12830 compliant Meas. range: -50 to +150 °C Accuracy: ±0.5 °C