The Extech ExStik Conductivity TDS Salinity Tester measures four parameters simultaneously: Conductivity, TDS, Salinity, and Temperature. An auto-ranging feature allows the meter to offer 3 ranges of measurements. The internal memory stores up to 25 labeled readings. Durable in a wet environment, the ExStik meets the IP57 standard.
Measurements are reported on an easy-to-read LCD (2000 count) display. An analog bar graph tracks sample trends. The electronic components self-calibrate on startup. Data Hold, Auto Power Off, and low battery indicators allow the user to monitor the device status.
Using an adjustable Conductivity to TDS ratio factor from 0.4 to 1.0, the ExStik calculates the TDS value. Meter verification/calibration is only required once a month during normal use. The ExStik allows for a 1, 2, or 3 point calibration.
Auto-ranging meter offers 3 ranges of measurements
Measures include: µS/cm, mS/cm, ppm, ppt, mg/L, and g/L
Simultaneously displays Conductivity, TDS, or Salinity plus Temperature
Performs self-calibration of electronics on startup
Specifications for Extech ExStik Conductivity/TDS/Salinity Tester
2000 count LCD with Bargraph
0 to 199.9µS/cm 200 to 1999µS/cm 2.00 to 19.99mS/cm
0 to 99.9ppm or mg/L
0 to 99.9ppm
0.4 to 1.0 adjustable
2.0% per °C
0.0°C to 65.0 °C (32.0°F to 149°F)
0.1 up to 99.9, 1 >100
±1°C; 1.8°F (from 0 to 50°C; 32 to 122°F) ±3°C; 5.4°F (from 50 to 65°C; 122 to 149°F
Conductivity ATC Range:
0.0°C to 60.0 °C (32.0°F to 140 °F)
Conductivity: ±2% full scale TDS: ±2% full scale Salinity: ±2% full scale