HI 981400 is an indicator designed to check the pH of foodstuffs. pH is monitored at different stages of food preparation and processing to guarantee safety, improve production and enhance quality. The pH of raw ingredients such as milk and meat is measured to ensure that standards have been properly met. Along with temperature and water activity, pH also affects the shelf-life of foodstuffs. For example, by bringing the pH value below 4.5, growth and multiplication of pathogens are inhibited.HI 981400 is compact and affordable. It has a large LCD and comes with a molded eye for convenient positioning above a QC bench, or at the goods-in area. Through a trimmer on the back of the unit, an ideal pH value can be set between 4.0 and 7.5 pH. Should the pH exceed this user selectable limit, an incorporated LED will alert the user with a flashing light. This important feature permits pH control to be delegated to operators with less technical skills.** Electrode (FC 200B or FC 230B) not included. **** BNC Connection not included (it is included with the electrode). **Range pH 0.0 to 14.0 pH Resolution pH 0.1 pH Accuracy pH ±0.2 pH Calibration manual, 2 points, at pH 4 and 7 Setpoint adjustable from 4.6 to 7.5 pH Alarm red LED (blinks when pH reading > setpoint) Input Impedance 1012 Ohm Power Supply 12 Vdc power adapter (included) Environment 0 to 50°C (32 to 122°F); RH max 100% Dimensions 86 x 110 x 43 mm (3.4 x 4.3 x 1.7") Weight 150 g (5.3 oz.)