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4-in-1 waterproof multi-parameter instrument for measuring pH, conductivity, TDS and temperature in one easy to use meter, utilising a single replaceable probe. This meter is available in two models with different EC ranges - select the meter which will work best with your range of conductivity, fro..

The HI-991003 is waterproof (to IP67 standard) for field use. It is the first pH meter that can measure pH, pH-mV (to check the electrode status), ORP and temperature with only one probe.Since ORP measurements are strongly effected by pH levels, the ability to measure both ORP & pH ranges simult..

High specification fully waterproof (to IP67 standard) portable dissolved oxygen meter for field and laboratory use. The new and improved HI 9146 meter measures and displays O² from 0 to 300%, 0 to 45 mg/L and temperature from 0 to 50°C.Results are microprocessor controlled and displayed on a large ..

The HI 9835 meter combines four important parameters which can be viewed simultaneously: Electrical Conductivity (EC), Total Dissolved Solids (TDS), sodium chloride (NaCl) and temperature.This extended range waterproof conductivity meter (up to 500 mS/cm) is particularly suited to environmental moni..