Rigid probe. Water resistant (IP22). Measurement range:(32.0 ~ 42.0) C/(89.6 ~ 107.6) F. Measurement accuracy:. +/- 0.1 C/0.2 F (35.5 C ~ 42.0 C/95.9 F ~ 107.6 F). +/- 0.2 C/0.4 F (32.0 C ~ 35.5 C/89.6 F ~ 95.9 F). Unit of measurement:0.1 C/0.1 F. Response time:60 seconds. Acoustic signal. Last measurement memory. Auto-off after 1 minute of non-use. Storage/transport temperature:(-25 ~ 55) C,