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Home  >  Water Quality - Analytical > Sensors - pH

Sensors - pH

Sensors - pH

A pH electrode can come in single- or double-junction models. The pH electrode in the double-junction model is highly recommended for any application that is not relatively “clean” as they protect the reference half cell in the sensor against contamination from heavy metals, organics, protein, and sulfides. Body material depends on whether you are measuring pH in the lab or field or if you require in-line capabilities. For field work, epoxy-body pH electrodes are impact resistant and are ideal for rough handling. Glass-body electrodes are well-suited for laboratories since they withstand high temperatures and highly corrosive materials or solvents. Industrial applications require in-line pH sensors made from durable materials like CPVC, PPS, or PVDF. Both industrial and laboratory/field pH electrodes are available with or without Automatic Temperature Compensation (ATC) element. The ATC element and connectors should be properly paired to the needs of your meter or controller. For laboratory and field work, Thermo Scientific Orion and Oakton are your choices. For industrial, in-line pH measurements, electrodes are offered from GLI (Hach) and GF Signet (+GF+Signet). If you have questions about selecting a pH electrode contact a Davis Application Specialist today.
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Representative photo only Oakton pH electrode epoxy body sealed single junction general purpose 3 ft 0 9 m cable BNC connector

Oakton pH electrode, epoxy body, sealed, single-junction, general purpose, 3-ft (0.9-m) cable, BNC connector

Product Type pH Electrode,Body type Epoxy,Built-in ATC No
Mfg Part#
DO-35801-00
In stock.
$45.90 USD/EACH

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Representative photo only pH electrode combination double junction gel filled BNC connector

pH electrode, combination, double-junction, gel-filled, BNC connector

Mfg Part#
DO-59001-70
In stock.
$84.00 USD/EACH

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Representative photo only pH electrode combination single junction gel filled BNC connector

pH electrode, combination, single-junction, gel-filled, BNC connector

Mfg Part#
DO-59001-65
In stock.
$70.00 USD/EACH

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DO-35805-04 Oakton pH electrode, glass body, refillable, double-junction, flushable junction, 3-ft (0.9-m) cable, BNC connector

Oakton pH electrode, glass body, refillable, double-junction, 3-ft (0.9-m) cable, BNC connector

Product Type pH Electrode,Body type Glass,Built-in ATC No
Mfg Part#
DO-35805-04
In stock.
$128.00 USD/EACH

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DO-05991-36 Electrode pH/Temp double-junction for high pH, low sodium error with 3-ft cable and ATC plug for Oakton pH5/6, 11/110, 510, 700, 1100/2100, 2700 meters

Electrode pH/Temp double-junction for high pH, low sodium error with 3-ft cable and ATC plug for Oakton pH5/6, 11/110, 510, 700, 1100/2100, 2700 meters

Mfg Part#
DO-05991-36
In stock.
$202.00 USD/EACH

Qty:
Representative photo only Oakton pH electrode epoxy body sealed double junction general purpose 3 ft 0 9 m cable BNC connector

Oakton pH electrode, epoxy-body, sealed, double-junction, general purpose, 3-ft (0.9-m) cable, BNC connector

Product Type pH Electrode,Body type Epoxy,Built-in ATC No
Mfg Part#
DO-35805-01
In stock.
$73.44 USD/EACH

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Representative photo only pH Electrode flat surface 3KOhm Balco thermistor ATC 3 4 NPT threads

pH Electrode, flat surface, 3KOhm Balco thermistor ATC, 3/4" NPT threads

ATC element 3KOhm Balco thermistor,Max pressure 100 psi,Model 3-2724-10
Mfg Part# 3-2724-10
DO-56561-02
In stock.
$303.00 USD/EACH

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Representative photo only Oakton double junction epoxy body gel filled waterproof pH electrode with ATC

Oakton double-junction, epoxy-body, gel-filled waterproof pH electrode with ATC

Mfg Part#
DO-35808-72
In stock.
$126.00 USD/EACH

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Representative photo only Thermo Scientific Orion pH ATC Triode epoxy body sealed single junction built in ATC with 8 pin miniDIN connection 5 ft 1 5 m cable BNC connector

Thermo Scientific Orion pH/ATC Triode, epoxy body, sealed, single-junction, built-in ATC with 8 pin miniDIN connection, 5-ft (1.5-m) cable, BNC connector

Product Type Sealed, gel-filled,Body type Epoxy,Built-in ATC Yes
Mfg Part#
DO-58823-30
In stock.
$248.00 USD/EACH
 $198.40 USD/EACH

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Representative photo only Oakton single junction epoxy body gel filled waterproof pH electrode with ATC

Oakton single-junction, epoxy-body, gel-filled waterproof pH electrode with ATC

Mfg Part#
DO-35808-71
In stock.
$98.00 USD/EACH

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DO-27400-00 Differential pH electrode

GLI Differential pH electrode, 10-ft cable, LCP body

ATC element NTC 300 thermistor,Material LCP (Liquid crystal polymer),Max pressure 100 psi
Mfg Part#
DO-27400-00
In stock.
$796.00 USD/EACH

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DO-35805-06 Image is for illustrative purposes only. Please refer to product description

Oakton pH electrode, epoxy body, sealed, double-junction, high sodium/high pH applications, 3-ft (0.9-m) cable, BNC connector

Product Type pH Electrode,Body type Epoxy,Built-in ATC No
Mfg Part#
DO-35805-06
In stock.
$74.00 USD/EACH

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DO-35811-74 Image is for illustrative purposes only. Please refer to product description

Oakton "All-in-One" pH/ATC electrode, glass body, refillable, double-junction, high sodium/high pH applications, built-in ATC with mini-phono connector, 2.5-ft (0.8-m) cable, BNC connector

Product Type pH Electrode,Body type Glass,Built-in ATC Yes
Mfg Part#
DO-35811-74
In stock.
$202.00 USD/EACH

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DO-58819-91 Thermo Scientific Orion pH/ATC Triode, epoxy body, sealed, single-junction, built-in ATC with 8 pin DIN connection, 3.3-ft (1-m) cable, BNC connector

Thermo Scientific Orion pH/ATC Triode, epoxy body, sealed, single-junction, built-in ATC with 8 pin DIN connection, 3.3-ft (1-m) cable, BNC connector

Product Type Sealed, gel-filled,Body type Epoxy,Built-in ATC Yes
Mfg Part#
DO-58819-91
In stock.
$233.00 USD/EACH
 $186.40 USD/EACH

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Representative photo only Thermo Scientific Orion ROSS Ultra pH ATC Triode glass body refillable double junction built in ATC with MiniDIN connection 3 3 ft 1 m cable BNC connector

Thermo Scientific Orion ROSS Ultra pH/ATC Triode, glass body, refillable, double-junction, built-in ATC with MiniDIN connection, 3.3-ft (1-m) cable, BNC connector

Product Type pH Electrode,Body type Glass,Built-in ATC Yes
Mfg Part#
DO-05718-28
In stock.
$528.00 USD/EACH
 $422.40 USD/EACH

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