Apera Instruments AI4731 Portable Water Hardness Meter Kit

Features:

• Adopting the state-of-the-art electrode method to test hardness, having the same accuracy as EDTA titration method, yet much more convenient
• Patented 601-S 3-in-1 water hardness combination electrode: combines a measuring electrode, a reference electrode, and a temperature electrode all in one
• Intelligent chip design produces stable potential, fast response rate, and convenient use;
• 99 sets of data storage; automatic calibration and temperature compensation (ATC), auto-lock and power-off
• Complete kit in a rugged carrying case; suitable for both lab and field test
• The Apera Instruments' YD300 is designed for quick & accurate measurements of Water Hardness (the concentration of calcium ions Ca2+ and magnesium ions Mg2+). The YD300 comes equipped with a patented 601 water hardness combination electrode that is proven to provide results consistent with the EDTA tritration method, but in a much more convenient and cost-saving manner. Unlike the traditional EDTA Method, There is no need for probe stirring or adding reagents during tests, and you can directly measure your sample solutions' water hardness just like pH testing. 
• The meter utilizes an intelligent chip design that supports automatic calibration, data storage (up to 99 sets) and a low battery voltage indicator. The YD300 supports the ability to switch between eight commonly used Water Hardness units, including mmol/L, mg/L (CaCO3), mg/L (CaO), mmol/L (Boiler), mg/L (Ca), °fH (France Degree), °dH (German Degree) and °eH (England Degree). 
• The YD300 is IP57 waterproof rated and comes as a complete kit. This kit includes the Model 601-S water hardness electrode, Water hardness calibration solutions ( B1, B2 and B3 ); corresponding calibration bottles, Water hardness activation solution, a 20 ml test cup, a test cup pedestal, 2 AA batteries, and a quick manual all in a rugged carrying case. Applications: drinking water, wastewaters, cooling towers, boiler water, aquaculture, pools & spas, etc.

Kit Includes:

• YD300 water hardness meter 1
• 601-S water hardness/temp. electrode 1
• AA alkaline batteries (1.5V)(installed) 2
• 100mL hardness calibration solution (B1, B2 and B3) 1 for each
• 20ml empty vials 6
• 10ml protecting bottle 1
• Metal pedestal 1
• Water hardness soaking solution (50ml) 1
• Carrying case 1
• User manual 1