The Hanna Combo® is the only tester on the market that measures pH, conductivity, TDS and temperature

? ± 0.05 pH, ± 2% FS, ± 0.5°F accuracy
? Waterproof
? Replaceable pH sensor
? Moist store sensor
? Automatic calibration

Designed for high accuracy portable pH, EC/TDS and temperature measurements. No more switching between meters, the Combo does it all. This waterproof, floating meter has a replaceable pH electrode with a cloth junction for rejuvenation of the electrode. The large dual-level LCD is easy to read and also displays the battery life percentage when first turned on. Automatic temperature compensation and automatic shut-off. Measures, EC form 0.00 to 20.00 mS/cm, TDS from 0.00 to 10.00 ppt, pH from 0.00 to 14.00 and temperature from 32°F to 140°F. Calibration solution not included, order separately. Imported.