RE300 ExStik® ORP MeterApplicationsFlat surface electrodes provides "On-the-Spot" measurementsFeatures• Measures ORP from -999 to 999mV• Automatic electronic self calibration• Simulated analog bar graph displays change in ORP reading• Memory stores and recalls 15 readings and saves last calibrated value• Data validation indicators show user the reading is stabilized• Large 3-1/2 digit (2000 count) Digital display with bar graph• Data Hold, Auto shut-off and low battery indication• Easy to replace electrode module is interchangeable with pH and chlorine ExStik® modules; (built in chip automatically recognizes the type of probe plugged in for specific measurements)• Waterproof (IP57) design floats in water and protects the meter in wet environment• Complete with meter and electrode, protective sensor cap, sample cup, four 3V CR-2032 batteries, and neckstrap• Optional weighted base (EX006) holds plastic cup and ExStik® meter