เครื่องวัดแก๊ส Gas Detector > 800046 CO2 เครื่องวัดก๊าซคาร์บอนไดออกไซด์ เครื่องวัดแก๊ส Carbon Dioxide Indoor Air Sper Indoor Air Quality Monitor Poor air quality may
Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large LCD (11/2" high, 38.1mm) with bar graph, low battery and over range indications.
Covers all of the substances of the Sugar - Brix Refractometer 0-32% 300001 and Sugar Refractometer 28-62% 300002, as well as very high sugar content products such as jam, marmalade and syrup