B) Duct Sensor - For single point monitoring. It is available with various probe lengths and enclosures to fit any application.

D) Duct Average Sensor - Incorporates numerous sensors inside a copper tube. It acts as a single sensor, averaging any temperature change across the sensors.

F) OSA Sensor - Comes in an aluminum LB c/w ½" NPT fitting for connection to conduit. It incorporates a sun/wind shield to protect the sensor. 

The TE Series Temperature sensors offer a choice of precision platinum RTD's, IC, or NTC thermistor sensors which can be interfaced with a computerized monitoring or control system.

The sensors are available in different housings, with various configurations and options for duct, immersion, duct averaging, remote strap-on and outside air applications.

The single point sensors are encapsulated in a 6.35 mm (0.25") OD 304 stainless steel probe.  All probes are constructed to provide good heat transfer and fast response.  The averaging sensors are available in both plenum rated cable or with a copper probe.

C) Immersion Sensor - Comes in two configurations. It has either spring loaded or non-spring loaded probes and has a 1/2" NPT fitting to be mounted into a thermowell. It is available in various lengths and enclosures styles.

E) Strap-on Sensor - Is a stainless steel probe and is used in remote applications where an immersion sensor can not be installed.

FD) Flex-Duct Sensor -Is made of flexible plenum rated cable which incorporates numerous sensors along the assembly. It acts as a single sensor averaging any temperature change across the sensors.

The TE500 transmitter option comes with the 1000 ohm platinum sensor as standard and provides either 4-20mA, 0-5 Vdc or 0-10 Vdc output over a selected range. It is powered by either 24 Vac or Vdc. A 100 ohm platinum sensor transmitter is optional.

Transmitter General Specifications:
Supply Voltage:
Operating Temp.:
OSA Operating Temp.:
24 Vdc/Vac
4-20mA, 0-5 or 0-10 Vdc
0.1% of span
-70 (32F-158F)
-85 (-40F-185F)
In compliance with
ANSI/NCSL 2540-11994

    Standard probe assemblies are rated at -40
    -105 (-40F-221F). For higher or lower temperature applications, please contact Greystone.