Featuring an extra large LCD dual level display, this wall mounted meter gives a continuous readout of pH and temperature. The display itself is backlit to make it easy to read in low light conditions, or at night. The case is protected against water and dust with an ultrasonically welded LCD display window and rubber keyboard for the controls. Easy to use, the meter automatically recognises 5 different buffer solutions and also has an automatic calibration feature and pH stability indicator. Temperature is automatically compensated for using a temperature sensor which is included in the meter specification. The pH electrode is included in the price and is designed to last as long as possible in solutions with a high concentration salts/chemical compounds. A double junction construction and Teflon diaphragm reduce clogging and prolong operational life of the electrode.

HI 991401 is supplied complete with HI 1293D pH electrode, HI 1294 temperature probe (fixed), pH 4 and 7 buffers (20
mL each), 12 VDC adapter and instructions.