HANNA Instruments is pleased to announce the release of 12 new Checker® HC Handheld Colorimeters. Designed as an accurate, affordable alternative to chemical test kits, the new Checker HC portable meters measure a variety of parameters including: Ammonia (low, medium and high Ranges), nitrite (low and high range), total chlorine (ultra low range and high range), low range silica, bromine, chromium VI, marine calcium and alkalinity. The Checker line of handheld colorimeters are perfect for testing water quality in saltwater aquariums, water treated to remove chlorine prior to RO, cooling towers, swimming pools and spas as well as spot-checking water quality in wastewater, plating and environmental applications.