This modern Hanna GroLine Waterproof EC/TDS meter is only 0.7" thick and extremely ergonomic, fitting comfortably in your hand. The meter has a very large easy to read LCD display that shows both EC and TDS along with calibration, stability and low battery indicators. All operations are simplified to two buttons. One is for turning the meter on/off and the other for automatic one or two point calibration.

Automatic calibration is achieved easily. Simply submerge the sensor in calibration solution and the meter will automatically detect the calibration standard (5.00 mS/cm in Quick Cal mode or 1.41 mS/cm in standard calibration mode). Temperature is automatically compensated for with the integrated temperature sensor.

• Model:  HI98318
• Graphite sensor for reduced polarization effect common with amperometric testers that use two stainless steel pins
• Two-Button Operation
• Quick Calibration Mode using Hanna pH/EC Quick Cal Solution

• Made specifically for hydroponics, this meter provides a simple, inexpensive solution to measure fertilizer concentration in a nutrient solution.