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 | Aquamedic Refractometer
The refractometer is an precision optical instrument used to determine the salt concentration in salt water aquariums.Its exact value can be determined in seconds and can be read either as absolute salt concentration (°/°°,ppt) or as specific density (kg/l). When a beam of light enters the refractometer it is bent or refracted by the water in the test panel. This refraction is proportional to the salinity of the sample and can be directly read by viewing the internal scale. As salinity varies in inverse proportion to temperature our refractometer is fully temperature compensated.The strong plastic carrying case contains the refractometer, a pipette for the water sample, a screw driver for calibration and full instructions.Technical Dataspecific density 1.000 to 1.070 salt concentration 0 to 100 °/°° Accuracy 0.001 /1 °/°° Temperature Compensation 10 to 30 °C
Price: £49.99
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 | Red Sea Hydrometer
Continuous or periodic reading of specific gravity for saltwater aquariumsAccurate measurement of specific gravity Easy to read digital thermometer User friendly patented design The most basic water quality parameter in a saltwater aquarium is the Salinity. The unique, patented design of Red Sea’s hydrometer enables the hydrometer to be installed permanently inside the aquarium or sump giving a continuous “real-time” reading of S.G. in addition to being used as a regular hydrometer for periodic S.G. measurements. The Hydrometer includes a digital thermometer to ensure that the water being tested is at the correct temperature.
Price: £12.75
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