Rosemount 3900

The 3900 pH sensor is meant for a variety of applications and provides enhanced performance and extended sensor life provided by a double junction. 

The rugged chemical resistant body is completely sealed to eliminate sensor leakage.


  • Enhanced performance and increased life with minimized glass cracking provided by field-proven AccuGlass pH glass fomulations
  • New ¾” and 1” mounting solutions to meet a variety of application installation requirements
  • Extended sensor life provided by double junction reference
  • Maximum chemical resistance provided by rugged polyphenylene sulfide body
  • Optimum versatility with various mounting options provided by one-piece construction with process threads in two places
  • Operates in sub-zero temperatures down to -10C and up to a maximum of 100C
Call To Action
Reach a Spartan Expert
Call To Action
Close x
Close x