Vigilant Aircraft Hygrometer

The Vigilant Aircraft Hygrometer is a rugged, shock mounted instrument used for accurate measurement of dew/frost point in flight or in installations with existing flow, such as wind tunnels. The Vigilant features a miniature, remote or mounted, primary method chilled mirror dew/frost point sensor employing a platinum resistance thermometer and has 15 feet of interconnecting cable to the control unit …

Features

  • A rugged, shock mounted dewpoint hygrometer for in-flight and wind tunnels
  • Uses a primary method chilled mirror dew/frost point sensor for high measurement accuracy
  • ISO/IEC 17025 accredited NIST traceable certification
  • Sensor is mounted through the skin of the aircraft or mounted to the controller
  • Precision accuracy, high repeatability and high reliability
  • Designed for atmospheric sciences

Model X3 Chilled Mirror Hygrometer Sensor

The Edgetech Instruments Model X3 chilled mirror sensor is specifically designed to measure the Dew/Frost point in demanding process and laboratory applications. It is available in multiple configurations to accurately measure very low dew/frost points in aggressive background gases. The Model X3 Sensor’s minimized sample cavity results in rapid dry-down times, fast response and quick detection of upset process conditions. …

Features

  • Chemically resistant sensor housing and mirror eliminate sensor failures when measuring dew/frost point in aggressive background gases
  • Chamber design and high efficiency heat exchanger result in the ability to measure very low frost points
  • Hinged cover plate allows easy access to the mirror for cleaning and inspection
  • Reduced cavity sample chamber speeds sample sweeping resulting in rapid dry-down after exposure to high moisture levels
  • Rugged, industrial electrical connectors and easy access slim line signal harness simplify installation and maintenance
RH-CAL Portable Humidity Calibrator Application Note

RH CAL Relative Humidity Calibrator

Primary‑Method Accuracy Uses chilled mirror dew/frost point measurement for true, drift‑free humidity traceability. Fully Self‑Sufficient & Portable No compressed air, water, or external utilities required, ideal for lab or field calibration. Independent Temperature & RH Control Calibrate at precise environmental conditions regardless of ambient surroundings. Fast Response & Superior Stability Integral chilled mirror sensor and proportional valve control deliver rapid …

DewTech 390 Low Dew Point Hygrometer

Ultra-Low Dew Point Capability Measures dew/frost points as low as –90°C with ±0.1°C accuracy using chilled mirror technology. No Recalibration Required Long-term measurement stability eliminates frequent recalibration, reducing maintenance costs. Fast, Repeatable, Reliable Responds quickly to changes in humidity with ±0.05°C repeatability and negligible hysteresis. Fully Scalable Output Multiple analog and digital outputs available for integration into lab systems and …

PDM75-X3 Portable

PDM75-X3SF Portable Dewpoint Hygrometer

Key Benefits Field-Ready, Primary-Method Accuracy Get true chilled mirror dew/frost point measurement—ideal for spot checks, audits, and critical moisture verification. Designed for Harsh Industrial Use Chemically resistant sensor materials and a rugged portable case support real-world environments from plant floors to compressor rooms. Low Maintenance & Easy Mirror Access Flip-top mirror access and Automatic Balance Control reduce service time and …

HP125 Series Relative Humidity Probe

Measure 4 Parameters with One Probe Simultaneously captures RH%, temperature, dew/frost point, and pressure (absolute or barometric). No Downtime for Recalibration Replace the smart sensor tip in seconds—each is pre-calibrated and ships with a NIST-traceable certificate. Built for Real-World Use Designed for in-situ measurements in compressed air systems, labs, and environmental testing setups. Modular & Flexible Works as a standalone …

DewTrak II MO for Motor Octane Testing

The DewTrak II MO specific humidity and barometric pressure transmitter is a chilled mirror dewpoint hygrometer that continuously measures the moisture content and barometric pressure in the motor octane testing process. It is used to monitor and ensure compliance with test standards ASTM D2700, D2699, D2885. NIST traceability guarantees measurement compliance for the allowable specific humidity and the pressure ranges. …

Features

  • NIST traceable chilled mirror hygrometer continuously monitors motor intake air fuel mix conditions required for Motor Octane Number (MON) and Research Octane Number (RON) testing
  • Monitors specific humidity and barometric pressure for compliance with test standards ASTM D2700, D2699, D2885
  • Can be easily fitted to existing knock engine systems
  • Ensures measurement compliance for allowable specific humidity and pressure range.
  • Powered by 24 Vdc with analog and digital outputs plus electrically isolated relay contacts

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 …

Features

  • 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 …

Features

  • 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
PTDM Pressure Transducer Data Sheet

PTDM Pressure Transducer

Edgetech Instruments Pressure Transducer is designed for accurate pressure measurement of gases or liquids compatible with stainless steel. The high level output signal requires no additional signal conditioning and results in excellent stability, accuracy, and fast dynamic response, making the Model PTDM ideal for high performance applications. The stable electronic circuit, combined with Edgetech’s patented variable capacitance sensor, results in …

Features

  • Designed for accurate pressure measurement of gases or liquids compatible with stainless steel
  • Excellent stability, accuracy, and fast dynamic response
  • Sensor features a one-piece 17-4 PH stainless steel pressure sensor and an insulated electrode, which forms a variable capacitor