Extech EC500 Waterproof ExStik II pH/Conductivity Meter TDS Meter

In good used working condition.

Combination flat surface pH electrode with autoranging high accuracy Conductivity cell

Features:

• Measures 5 parameters including Conductivity, TDS, Salinity, pH, and Temperature using one electrode

• 9 units of measure: pH, µS/cm, mS/cm, ppm, ppt, mg/L, g/L, °C, °F

• Analog bargraph indicates trends

• Memory stores up to 25 labeled readings

• Adjustable Conductivity to TDS ratio from 0.4 to 1.0; 0.5 fixed Salinity ratio

• RENEW feature alerts user when electrode needs replacement

• Order Conductivity standards and pH buffers separately

• Complete with meter and electrode, protective cap, four 3V CR-2032 batteries, and 48\" (1.2m) neckstrap