RH520A-220-NIST / Extech Humidity Plus Temperature Chart Recorder, 220V with Detachable Probe and NIST Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date.
SDL550-NIST / Extech Moisture Content Meter with NIST 23.7" (600mm) Heavy Duty Stainless Steel Single-Prong Probe with Replaceable Probe Head and inner filter.
testo 606-2 wood and material humidity meter withintegrated humidity measurement and NTC air thermometer incl. protection cap, batteries and calibration protocol