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Sensorex® pHASE pH Electrodes

By Sensorex
Sensorex® pHASE pH Electrodes

Sensorex® pHASE pH electrodes provide fast, accurate, stable pH measurements, even with large changes in the sample temperature. The built-in double junction references keep silver ions from contacting samples and therefore eliminate undesirable reactions with heavy metals, sulfides and proteins. Use these electrodes with nearly any make laboratory or portable pH meter. Available with either of the following reference types and an epoxy or glass body.

Sealed (no-maintenance) reference. Economical electrodes with large area porous polyethylene junctions that resist clogging.

Rapid-renew reference. Easily refillable (no need for awkward rubber sleeves or screw plugs) for use with dirty or other junction fouling samples. Pushing a spring-loaded knob opens the sleeve junction and produces a fresh junction.

Epoxy body. Durable and chemical resistant. Offered with either a removable bulb guard that protects spherical pH bulb from breakage, or with break resistant flat bulbs that make excellent contact with viscous materials, solid surfaces and slurries.

Glass body. Maximum chemical resistance with fully exposed pH bulbs. Includes pH bulb with a stronger hemispherical shape. For use in a variety of non-slurry applications.

Electrodes include 30" (76cm) cables. When ordering, specify the connector or the make and model of your pH meter.


pH range 0-14 (0-12 without sodium ion error)
Temperature range 0-100°C
Isopotential point 7 pH
Slope 95-100%
Speed of response Stable to 0.01 pH within 30 seconds going from 25 to 75°C in pH 7 buffer
Accuracy 0.04 pH between 0 and 100° in pH 7 buffer after standardization at 25°C
Stability ±0.005 pH drift per 24 hours

Epoxy body

Cat.No. Name EA    
73-S1010CD Removable bulb guard, sealed reference $0.00
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73-S1021CD Removable bulb guard, refillable reference $0.00
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73-S1030CD Flat measuring surface, sealed reference $0.00
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Glass body

Cat.No. Name EA    
73-SG1041CD Hemispherical bulb, refillable reference $0.00
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73-SG1050CD Hemispherical bulb, sealed reference $0.00
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