The TSI Alnor 980 IAQ Probe is a measuring probe that is used with the TSI Alnor Model 9565. The IAQ probe has a length of 7 in (17.8 cm) and a diameter of 0.75 in (1.9 cm). It has a NIST certificate of calibration and was made in USA.
The TSI Alnor 980 has a temperature measuring range of -10 to 60 °C (14 to 140 °F) with an accuracy of ±0.3 °C (0.5 °F) and a CO2 measuring range of 0 to 5,000 ppm with an accuracy of ±3% of reading or ±50 ppm. The IAQ probe has a humidity measuring range of 0 to 95 %rH with an accuracy of ±3 % of rH.