From Hanna , the HI 98130 Combo waterproof tester offers high accuracy pH, EC/TDS and temperature measurements in a single tester!
No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to- read, dual-level LCD and automatic shut off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives the meter a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted. The EC/TDS conversion factor is user selectable as well as the temperature compensation coefficient (ß). Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you've asked for and more!
HI 98130 is supplied complete protective cap, electrode removal tool, batteries and instructions.