Min-Max Thermometer Magnet 680

Used in weather stations, cold storage rooms, construction, industry, or anywhere, indoor and out, requiring a record of minimum and maximum temperatures. Small floats are pushed to each temperature extreme by the two mercury columns and stay there until reset with the attached magnet. Dual scales of -50/50˘XC and -60/120˘XF. Weight: 4oz (108g). Dim: 11" x 2 1/2" x 1" (279 x 64 x 25mm).

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Min-Max Thermometer Push Button 690

Same as 680 but reset by the push of a button. Dual scales of -40/50˘XC and -40/120˘XF. Weight: 4oz (108g). Dim: 7 7/8" x 21/2" x 7/8" (200 x 64 x 22mm).

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Red Liquid Whirling Hygrometer (-50~50˘XC) 700

Obtain fast and accurate humidity readings anywhere by comparing the reading of the wet and dry bulb thermometers on the enclosed humidity chart. Eliminates the hazard of splattering mercury by using a safe and easy to read red liquid. The thermometers are recessed into a protective plastic mounting. The mounting also contains a water reservoir eliminating the need to constantly rewet the wick. Comes with a carrying case and plastic humidity chart. Weight: 4oz (108g). Dim: 8 1/2" x 6" x 1" (216 x 152 x 25mm).

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Red Liquid Whirling Hygrometer (20~120˘XF) 710

Same as 700 except for range.

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Red Liquid Masons Hygrometer 740

One thermometer bulb is kept constantly wet by a siphon reservoir while the other gives a dry temperature reading. Humidity is obtained by comparing the two readings on the enclosed chart. Uses a safe and easy to read red liquid in place of the usual mercury. Dual scales of -10/50˘XC and 10/120˘XF. Dim: 12" x 27/8" x 11/4" (304 x 73 x 32mm). Weight: 4oz (108g).

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