To determine and chart temperature and relative humidity over a selected period. Dual chart switchable 1 day or 7 days with quartz clock, drive charts and pens, measuring range -15 to +40? for temperature, 0 to 100% RH.
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To determine and chart temperature and relative humidity over a selected period. Dual chart switchable 1 day or 7 days with quartz clock, drive charts and pens, measuring range -15 to +40? for temperature, 0 to 100% RH.