The HI7634-00 is a two-pole amperometric EC/TDS probe for panel mounted mini controllers that measure in the low range (μS/cm and ppm). This probe has a built-in temperature sensor for Automatic Temperature Compensation and a ½ ” male NPT threaded connection for insertion mounting. The HI7634-00 probe provides a rapid response and high accuracy EC or TDS measurement.

• Two-pole amperometric probe
• Internal temperature sensor
• Low range measurement (μS/cm and ppm)

Two-Pole Probe
The HI7634-00 is an amperometric sensor, utilizing two-pole technology to achieve accurate EC and TDS measurements. An alternating voltage is applied to the two electrodes and the generated current is measured.

Internal Temperature Sensor
The integrated temperature sensor of the HI7634-00 probe is crucial for accurate EC and TDS measurements. Changes in temperature of a solution will change the ion mobility, which will influence the measurement. For this reason it is important that a fast and stable temperature measurement be taken in order to provide an accurate temperature compensated EC and TDS reading.

Threaded Connection
The ½” NPT threaded connection of the HI7634-00 allows for insertion mounting into a common “T” fitting without the need for additional hardware.

Multiple Cable Lengths
HI7634-00 comes with 2 meters (6.6 feet) of cable attached.
HI7634-00/4 comes with 4 meters (13.1 feet) of cable attached.
HI7634-00/5 comes with 5 meters (16.4 feet) of cable attached.