External NTC thermistor temperature probe for use with the HDT-161 PDF Temperature Data Logger. -30°C to +70°C (-22°F to +158°F) temperature range.

The probe is 20mm long x 3.75mm diameter with 2m cable length and a 3.5mm jack connector.

The probe can be connected to the HDT-161 data logger through the hole in the data logger cap.

This product can be supplied with a calibration certificate.