PRODUCTS
Fast, Accurate Measurements to -105 °C. Suitable for laboratory use, calibrations and spot checks.
Our flagship product. For use in aircraft and military applications.
CR-2 Convenience for Continuous-Use Applications. Suitable for toxic and corrosive gases, such as Arsine, Phosphine, HCl and HBr.
Portable, 3-stage TE cooler for measurements to -65 °C
Portable high-temperature hygrometer for measurements to 150 °C.
Separate sensor and transmitter with 3-stage TE cooler for measurements to -60 °C
The Best Conventional Aircraft Hygrometer
H-100BL/H-100CL Humidity calibration chamber
Portable humidity calibration chamber
CR-5 HYGROMETER

The CR-5 is a chilled mirror hygrometer that uses a 3-stage thermoelectric cooler (TEC) to enable frost point measurements of as low as 60 °C, under favorable ambient conditions. It is configured as a transmitter module with an external sensor connected by cable up to 9 feet in length.
Depending upon ambient temperature, the CR-5 can measure dew points as high as 60 °C and can display moisture concentration (ppmv or lbs/MMscf) with optional pressure sensor or %RH with optional ambient temperature sensor. Both of these require the optional LCD display The CR-4 is designed to measure in air and most non-corrosive gases at pressures ranging from near vacuum to up to 100 psia.
CR-5 Specifications:
3 Stage TE Cooler
Dew/Frost Range: – 60 to 60°C *
85°C Depression
Resolution: 0.01°C
Accuracy: ±0.5°C, optionally ±0.2°C
Sample Flow Rate: 0.25 to 3 liters/min
Sample Pressure: 0 to 100 psia
Isolated 4-20 mA Scaleable Analog Output with one 3A Relay output
RS232 Serial I/O
Dimensions: 7.5×8.5×3 inches, transmitter / 6.5×2.5×2.5 inches, sensor
Power Requirement: 24vdc @ 2 amps or 110 – 240 vac @ 50 – 400Hz
*Dependent upon ambient temperature