Extech EC400 Waterproof ExStik Conductivity/TDS/Salinity Meter

The Extech EC400 ExStik® is a waterproof, pocket-size meter that measures conductivity, TDS, salinity and temperature at the same time with one high-accuracy, multi-range conductivity cell. It autoranges across three ranges, so the same cell handles everything from tap and pure water to salinity solutions, waste water, boiler and cooling water and any other aqueous solution that needs a conductivity, TDS or salinity reading.

The 2000-count display shows conductivity, TDS or salinity together with temperature, with an analog bargraph to follow sample trends. The meter self-calibrates on power-up, compensates automatically for temperature, and stores up to 15 labeled readings for later recall. The conductivity cell module is easy to replace.

EC400 features:

• One sensor measures four parameters: conductivity, TDS, salinity and temperature
• Autoranging across 3 measurement ranges
• 6 units of measure: µS/cm, mS/cm, ppm, ppt, mg/L and g/L
• Adjustable conductivity-to-TDS ratio factor from 0.4 to 1.0, so the meter calculates TDS for you
• Simultaneous display of conductivity, TDS or salinity plus temperature
• 3-1/2 digit (2000 count) display with analog bargraph for sample trends
• Automatic temperature compensation (2% per °C)
• Internal memory stores up to 15 labeled readings
• Self-calibration on power-up
• Interchangeable, easy-to-replace conductivity cell (Extech EC405)
• Data Hold, auto power off and low battery indication
• Waterproof IP57 housing

The EC400 includes:

• EC400 meter with conductivity cell
• Protective sensor cap
• Sample cup with cap
• Four CR2032 (3 V) button batteries
• 48 in (1.2 m) neck strap

The EC410 kit version of this meter has been discontinued by Extech. For a complete kit with calibration standards, sample cups and a carrying case, see the Extech EC510 Waterproof ExStik pH/Conductivity Kit, which also measures pH.