Temperature
RTD — 100 Ohm Platinum
Primary workspace temperature sensor
Class A, 3-wire sensor measured at the point of airflow entering the workspace. Specially designed platinum resistance elements ensure precise, repeatable, and interchangeable measurement across all chamber models.
Type T thermocouple
Limit controller sensor — standard
Standard product thermocouple included with all chambers except BD models with a high-limit only limit controller. Connects to the limit controller for safety monitoring.
Type J thermocouple
Limit controller sensor — BD series
Used on BD chambers equipped with the high-limit only limit controller, in place of the standard Type T thermocouple.
Type K thermocouple
Heater monitoring — SAFE chambers
Connected to heaters on SAFE chambers to monitor heater temperature and trigger alarms in the event of an overheat condition. This is not a product thermocouple.
Humidity
Vaisala HMM100
Standard relative humidity sensor
Measured at the point of airflow entering the workspace. Airflow speed does not affect measurement. Full temperature compensation across the entire operating range. Easy field calibration. Solid-state design.
Standard on all humidity chambers unless the high humidity option is selected.
High humidity heated sensor
Replaces standard RH sensor
Heated sensor and probe prevent condensation during high humidity operation. Maintains accurate measurement up to 98% RH. Suitable for vacuum and pressurized chamber environments.
Replaces the Vaisala HMM100 when the high humidity option (up to 98% RH) is purchased — not an add-on.
Gas
Toxic gas sensor
Network-enabled gas monitoring
Network-enabled gas sensor module providing Sentry, 4–20 mA, or Modbus output.
Oxygen sensor
Trace oxygen transmitter
True loop-powered trace oxygen transmitter (14–32 VDC). Ranges from 0–10 PPM to 0–20,000 PPM. 4–20 mA output compatible with data loggers, PLCs, DCS, and more. NEMA 7 explosion-proof housing available.