A barometer is an instrument used in meteorology to measure
atmospheric pressure. Pressure tendency can forecast short term changes in the
weather. Sper Scientific offers both the classical dial and weather ball
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Spectral Technology Instrument Co.,Ltd.
99/532 Rat Phattana 22 Rd., Rat Phattana , Saphansung , Bangkok 10240.
+66 2 729 0927 +66 2 729 1348