Fluke-971-Temperature-Humidity-Meter-Fluke-2418208-P-The-Fluke-971-measures-temperature-dew-point-or-wet-bulb-from-20-deg-C-to-60-deg-C-&-measures-relative-humidity-from-5-percent-to-95-percent-plusmn-2-5-percent-RH-Its-99-point-data-storage-capacity-means-users-can-take-multiple-readings-&-store-them-for-later-analysis-The-Fluke-971-Temperature-Humidity-Meter-features-a-liquid-crystal-display-with-backlight-&-a-low-battery-indicator-The-unit-operates-on-four-AAA-alkaline-batter