GF Signet 2774-2777 Threaded DryLoc pH/ORP Electrodes Sensor

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$375.00 - $643.45 ex. Tax


The Signet 2774-2777 pH and ORP electrodes are high performance sensors ideal for a wide range of applications. The unique foul-proof DryLoc® connector with gold-plated contacts is designed specifically for use with the Signet 2751 pH/ORP Smart Sensor Electronics or the 2760 Preamplifier. These dependable and highly responsive electrodes feature a PTFE double reference junction with potassium nitrate (KNO3 ) in the front chamber to block various poisoning ions such as Copper (CU2+), Lead (Pb2+), Mercury (Hg2+), and a large reference chamber that combine to extend the service life.

The positioning of the temperature element embedded in the pH sensing tip allows the temperature response to be quick and accurate. The electrodes are off ered with either flat or bulb style sensing elements. The flat versions allow sediment and particles to sweep past the measurement surface, minimizing risks of abrasion, breakage and coating. The bulb versions can be used for low temperature applications or where fast response is required. Due to the specially designed chambers which keep electrolyte in place, all sensor models can be installed at any angle, even inverted. The quick temperature response is available in either a PT 1000 or 3KΩ temperature sensor and allows compatibility with all Signet pH/ORP instruments.


Fields of Application:

  • Water Treatment and Water Quality Monitoring
  • Cooling Tower and Boiler Protection
  • Aquatic Animal Life Support Systems
  • Pool and Spa Control
  • Neutralization Systems


  • Double reference PTFE junction to block various poisoning ions and resist fouling and dirt buildup
  • Ryton (PPS) body for broad range of chemical compatibility
  • Memory chip enabled for access to a wide range of unique features when connected to the Signet 2751 pH/ORP Smart Sensor Electronics
  • Patented DryLoc® connector with gold plated contacts
  • Special design allows for installation at any angle, even inverted or horizontal
  • Temperature sensor (pH)
  • Quick temperature response
  • Easy sensor replacement using DryLoc® electrode connector
  • High temperature versions available
  • Mounts into standard ¾ inch threads
  • Compatible with all Signet instruments

Compatible Products

  • 2751 DryLoc® pH/ORP Smart Sensor Electronics
  • 2760 DryLoc® pH/ORP Preamplifiers and Connectors
  • pH/ORP Buffer Solutions
  • 8900 Multi-Parameter Controller
  • 9900 Transmitter
  • 9950 Dual Channel Transmitter


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Extra Information

GF Signet