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Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9


Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
+1 403 282-7335

pH Lab Electrode

ID: 3550_0

This lab electrode measures the pH of a solution and connects to a pH/ORP Adapter.


Quantity Available: 3

Qty Price
5 $24.00
10 $23.00

The 3550 is an economical pH electrode ideal for your general-purpose applications in the lab or field. It has the impact-resistant qualities of an epoxy body.

The electrode provides a fast, stable response and is ideal for prolonged pH readings. The sealed, gel-filled design requires virtually no maintenance as there is no need to refill the reference chamber.

This product comes with a small container of buffer solution. Fill the sensor cap with the buffer solution and let it soak between uses.


  • Monitor the pH of a liquid or solution
  • Connects to a Phidget pH adapter via the BNC connector


This probe connects to the BNC connector on our pH interface boards. See the Connection & Compatibility tab for a complete list of options.


pH/ORP Interfaces

This pH electrode creates a voltage differential that can be read by one of our pH/ORP interfaces:

Product Sensor Properties
Part Number Price Controlled By
pH Phidget
$25.00 VINT
pH/ORP Adapter
$30.00 Voltage Input (0-5V)

Product Specifications

Electrode Properties
Electrode Type Combination Single-Junction (pH)
pH Measurement Range 0 to 14
Electrode Response Time Max 10 s
Operating Temperature Min 0 °C
Operating Temperature Max 80 °C
Physical Properties
Exterior Tube Material Impact Resistant Plastic
Connector Type BNC
Length 170 mm
Cable Length 1 m
Customs Information
Canadian HS Export Code 9027.89.00
American HTS Import Code 9027.89.45.30
Country of Origin CN (China)


Here is a complete list of the water quality probes we carry:

Product Electrode Properties Physical Properties
Part Number Price Electrode Type Operating Temperature Max Exterior Tube Material
ORP Industrial Electrode
$110.00 Combination Single-Junction (ORP) 110 °C PPS Plastic
pH Industrial Electrode
$100.00 Combination Single-Junction (pH) 110 °C PPS Plastic
pH Lab Electrode
$25.00 Combination Single-Junction (pH) 80 °C Impact Resistant Plastic