Description Accessories Description The 800220 temperature and humidity probe designed for use with Alnor EBT730 and EBT731. It is ideal for measuring inside of duct work before and after a coil. This telescopic probe extends from 9 in to 39 in and can be inserted into a standard 5/16 in diameter hole. The 800220 probe is used for pitot traverses and can be used to calculate web bulb and dewpoint temperatures. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories TSI Alnor EBT Micromanometer EBT730 $2,125.00 Was: Now: $1,912.50 In Stock Add To Cart View More TSI Alnor EBT Balometer Capture Hood EBT731 $3,710.00 Was: Now: $3,339.00 In Stock Add To Cart View More