HP125 Series Multi-Sense Humidity Probe

The HP125 Multi-Sense Humidity Probe is a cost effective, easy to use solution to many industrial and laboratory measurement and control applications. The HP125 probe exploits the latest advancements in polymer humidity sensing technology and compact electronic circuitry. It is designed to continuously measure up to 4 measurement parameters using a single intelligent sensor tip including RH%, calculated Dewpoint, Temperature …


  • Single, cost-effective probe continuously measures up to 4 parameters including relative humidity, dewpoint, temperature and pressure
  • The sensor can be replaced in seconds and automatically synchronizes with the HP125 probe
  • Can be used stand-alone or in combination with the HP125-DCM or with the SENTRY series of compressed gas alarm modules
  • No need to send the probe for calibration service off-site
  • Each new sensor comes with a NIST traceable calibration certificate
  • For industrial and laboratory measurement and control applications

200M Meteorological Humidity Measurement System

The Model 200M is a complete instrument for the measurement of Atmospheric Dewpoint, Ambient Temperature, % Relative Humidity, or other Psychrometric Variables. It employs the very reliable optical chilled mirror sensing technique which provides a primary measurement of dewpoint, and is traceable to NIST. The Model 200M is ideally suited for installations requiring continuous, automatic, and unattended measurement of humidity …


  • Complete instrument for measurement of atmospheric dewpoint, ambient temperature, relative humidity and other psychrometric variables
  • For installations requiring continuous, automatic, and unattended measurement of humidity over a very wide range
  • Certified in an ISO/IEC 17025 accredited laboratory with NIST traceability
  • Primary dewpoint measurement technique with high accuracy and reliability
  • No periodic sensor recalibration required

ELH Series – Precision Humidity Chambers

The ELH Series of precision humidity chambers has NIST traceable accuracies in humidity, temperature and dewpoint. The ELH Series incorporates programmable controllers for constant, precision parameter control and uniformity plus integrated DewMaster chilled mirror hygrometers for accurate temperature and humidity measurements. These highly accurate temperature and humidity control chambers are very similar in performance to two-pressure method devices but they …


  • A group of precision calibration chambers incorporating programmable controllers plus primary method DewMaster chilled mirror hygrometers
  • Highly accurate temperature and humidity control similar in performance to two-pressure method devices but at a significantly lower price
  • Delivered with multi-point, NIST traceable, ISO/IEC 17025 accredited certification
  • Various sized bench mount calibration chambers having 304 stainless steel interiors are available

CAM Compressed Air Module

The CAM (Compressed Air Module) is a sampling chamber for use with Edgetech Instruments humidity and dewpoint probes. It has a sample inlet ball valve for connection to a pressurized compressed air or gas takeoff point, providing an easy way to connect a probe or alarm module to a gas supply. The ball valve allows isolation of the probe from …


  • Sample chamber allows safe isolation and servicing of sensor probe at pressurized sample takeoff point
  • For installation and use with HP125 and Sentry humidity probes
  • Provides ball valve to isolate probe from process pressure and bleeder valve to allow flow of sample gas past the probe sensor
  • May be used for pressure dewpoint or atmospheric dewpoint measurements
  • Available in brass or stainless steel construction