MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Measures water conductivity, total dissolved solids (tds), resisitivity, ph, oxidation-reduction potential (orp), temperature, and free chlorine (fce); provides results in hydroponics, in lab, or for use in the field; automatic or user adjustable temperature compensation; user adjustable conductivity/tds conversion ratios; auto shut off; non-volitile microprocessor provides data back-up; 4 digit lcd display; ph calibration prompts; low battery indicator; buoyant; large capacity kcl reservoir; 4 electrode cell for conductivity/resistivity/tds for accuracy, stability, and minimal maintenance; power: 9 v alkaline battery; battery life: approx. 100 hours (5000 readings); operating/storage temperature: 32 - 132 degrees f (0 - 55 degrees c); waterproof to 3 ft (1 m); real time clock with date and time; data logging with date and time stamp in memory; memory to record and store 100 separate readings; weight: 12.4 oz (352 g); dimensions: 7.7 in h x 2.7 in w x 2.5 in h