Milwaukee Sharp EC C62

They are built in a one-piece splash-proof casing and theynare immersible up to the LCD. All models have Automatic Temperature Compensation and the temperature sensor housing is made out of 316 inox steel instead of plastic. 

This ensures 100 times faster readings and higher accuracy.  Models available are:

 

C62 conductivity tester high range, range: 0.00 to 19.99 mS/cm.

 

Specifications:

• Range 0.00 - 19.00 mS/cm  
• Resolution 0.01 mS/cm
• Accuracy ± 2% full scale
• Temp. Compensation Automatic 0 - 50°C
• Environment -5 to 60°C / 100% RH
• Battery Life 300 hours of continuous use
• Battery Type 4 x 1.5V
• Auto-off After 8 minutes of non-use