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| Consist of mercury in glass or spirit thermometers, clamped
on wooden frame, scales marked both in centigrade and
fahrenheit -10 C to + 50 C x 1 C, 14 F to +120F x 2 F. These
thermometers are marked Dry and Wet. Bulb of Wet
thermometers covered by muslin wick connected to a plastic
water reservoir to keep it moist. Dimensions - length x
width 300 x 100 mm. |
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