Designed for your water quality applications measuring simultaneously pH and Conductivity/TDS, the Hach HQ40D portable multi meter is a two channels advanced handheld digital meter that takes the guesswork out of measurements. The Hach HQD digital multimeter combines reliability, flexibility and ease of use. The HQD portable meters connect with a wide range of Intellical smart electrodes addressing different parameters, sample types and operating environment for water quality, environmental and treatment process purposes. The Intellical probe automatically recognize the testing parameter, store the calibration history, and method settings to minimize errors and setup time.

Intellical™ PHC101 and CDC401 are digital combination pH and Conductivity/TDS electrodes with built-in temperature sensor. PHC101 has low maintenance needs thanks to a non-refillable gel-filled single open reference junction. These electrodes are shockproof with their plastic body protecting down to the sensing element. The PHC101 and CDC401 electrodes are ideal for measuring pH and Conductivity/TDS in wastewater, drinking water and general aqueous applications. The PHC101 is not suitable for use with organic solvents or samples with pH less than 2.