Clear Displhello : A full resolution silhouetted screen , this device ensures easy reading of data even in shadowy conditions , enhancing user Wide Application Extentermeterror : Suitable for aquaculture , pool maintenance , and laboratory research , this tester meets both household and professional water needs With a inherent connection and advanced transducer technology , this tester is easy to use for novices and furnishes highly accurate measurements for consistent water assessment Accessible Hook Plannumber : Features a practical hook for easy installation and storage , saving space and ensuring the device is forever accessible for daily testing tasks Christmas star Single Functionality : The four hundred h Rich Water Tester integrates and temperature measurement , offering comprehensive water analysis for various applications, Manufacturer: ERRORY