Greystone Products
Air Flow Transducers
Greystone ESF Air Flow Transducer
Air flow transducer for air flow measurement.
Control Interface Transducers
Greystone Control Interface Transducers
Control Interface Transducers
Current Sensors and Switches
Greystone Current Sensors
AC current sensors for monitoring AC circuits.
Greystone Current Switches
AC Current Switches for switching AC or DC circuits.
Gas Detectors
Greystone AIR Air Quality Monitor
Microprocessor based air quality monitor/controller sensitive to a wide variety of air pollutants.
Greystone CDD Carbon Dioxide Detectors
Environmental, industrial and commercial indoor Carbon Dioxide (CO2) gas detector.
Greystone CMD Carbon Monoxide Gas Detectors
Environmental, industrial and commercial indoor Carbon Monoxide (CO) gas detector.
Humidity Transmitters
Greystone Humidity Transmitters
The RH Series humidity transducers are intended specifically for use in environmental monitoring and control systems.
Greystone RH 2% Dual Humidity/Temperature Transmitters
2% Accuracy humidity transmitter c/w temperature transmitter. Can be ordered with different outputs and temperature ranges.
Greystone RH 3% Dual Humidity/Temperature Transmitters
3% Accuracy humidity transmitter c/w temperature transmitter. Can be ordered with different outputs and temperature ranges.
Greystone RH 5% Dual Humidity/Temperature Transmitters
5% Accuracy humidity transmitter c/w temperature transmitter. Can be ordered with different outputs and temperature ranges.
Pneumatic Transducers
Greystone Pneumatic Transducers
Greystone Electronic to Pneumatic Transducers
Pressure Switches
Greystone AFS Pressure Switches
General purpose airflow proving switch designed for HVAC and Energy Management applications. It may be used to sense positive, negative, or differential air pressure.
Pressure Transmitters - Gas
Greystone Low Pressure Transducer
The LP2 Low Pressure Transducer. Pressure in the ranges of 1.00" W.C. to 12" W.C. (200 to 2000 Pa).
Greystone ULP Ultra Low Pressure Transducers
Ultra Low Pressure Transducer used to measure differential pressure in the ranges of 0.125" W.C. to 1" W.C. (30 to 250 Pa).
Pressure Transmitters - Liquid
Greystone Gauge Pressure Transducers
Gauge Pressure Transducers
Greystone WP Gauge/Differential Liquid Pressure Transducers
Gauge/Differential Liquid Pressure Transducers. Compatible with a wide range of liquids and gases.
Relays & Misc Controls
Greystone LY General Purpose Relays
LY series general purpose relays.
Greystone Miscellaneous Equipment
Damper End Switch, Light Sensor, Loop Powered Indicator, Water Detector.
Greystone PS Regulated DC Power Supplies
Regulated DC Power Supplies
Temperature Sensors
Greystone Immersion Sensor Accessories
Immersion sensor accessories. Immersion wells and thermal joint compound.
Greystone Type 11 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 11: LM334 IC, 1.0uA/°C.
Greystone Type 11 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 11: LM334 IC, 1.0uA/°C.
Greystone Type 12 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 12: PT1000-1000 ohm Platinum, IEC 751, 385 Alpha, thin film.
Greystone Type 12 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 12: PT1000-1000 ohm Platinum, IEC 751, 385 Alpha, thin film.
Greystone Type 13 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 13: 1000 ohm Nickel.
Greystone Type 13 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 13: 1000 ohm Nickel.
Greystone Type 14 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 14: 10,000 ohm, Type 3, NTC Thermistor, ±0.2°C c/w 11K shunt resistor.
Greystone Type 14 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 14: 10,000 ohm, Type 3, NTC Thermistor, ±0.2°C c/w 11K shunt resistor.
Greystone Type 20 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 20: 20,000 ohm, NTC Thermistor, ±0.2°C.
Greystone Type 20 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 20: 20,000 ohm, NTC Thermistor, ±0.2°C.
Greystone Type 21 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 21: LM335 IC, 10mv/°C.
Greystone Type 21 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 21: LM335 IC, 10mv/°C.
Greystone Type 24 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 24: 10,000 ohm, type 2, NTC Thermistor, ±0.2°C.
Greystone Type 24 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 24: 10,000 ohm, type 2, NTC Thermistor, ±0.2°C.
Greystone Type 2 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 2: PT100-100 ohm Platinum, IEC 751, 385 Alpha, thin film.
Greystone Type 2 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 2: PT100-100 ohm Platinum, IEC 751, 385 Alpha, thin film.
Greystone Type 5 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 5: 1801 ohm, NTC Thermistor, ±0.2°C.
Greystone Type 5 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 5: 1801 ohm, NTC Thermistor, ±0.2°C
Greystone Type 6 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 6: 3000 ohm, NTC Thermistor, ±0.2°C.
Greystone Type 6 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 6: 3000 ohm, NTC Thermistor, ±0.2°C.
Greystone Type 7 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 7: 10,000 ohm, type 3, NTC Thermistor, ±0.2°C .
Greystone Type 7 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 7: 10,000 ohm, type 3, NTC Thermistor, ±0.2°C.
Greystone Type 8 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 8: 2.252 K ohm, NTC Thermistor, ±0.2°C.
Greystone Type 8 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 8: 2.252 K ohm, NTC Thermistor, ±0.2°C.
Greystone Type 9 Probe/OA Temperature Sensors
The TE200 Series temperature sensors offer a choice of precision platinum RTD's, IC's, or NTC thermistor sensors. Type 9: 100,000 ohm, NTC Thermistor, ±0.2°C.
Greystone Type 9 Space Temperature Sensors
The TE200 Series space temperature sensors are available in a wide selection of enclosures with a variety of options. TYPE 9: 100,000 ohm, NTC Thermistor, ±0.2°C.
Temperature Transmitters
Greystone TE510 Copper Duct Average Temperature Transmitters - Deg F LCD
Temperature Transmitters c/w LCD Readout. Copper Duct Average Version.
Greystone TE510 Duct Probe Temperature Transmitters - Deg F LCD
Temperature Transmitters c/w LCD Readout. Duct Probe Version.
Greystone TE510 Flexible Duct Average Temperature Transmitters - Deg F LCD
Temperature Transmitters c/w LCD Readout. Flexible Duct Average Version.
Greystone TE510 Immersion Temperature Transmitters - Deg F LCD
Temperature Transmitters c/w LCD Readout. Immersion Probe Version.
Greystone TE510 O.S.A. Temperature Transmitters - Deg F LCD
Temperature Transmitters c/w LCD Readout. O.S.A. Version.
Greystone TE510 Strap-on Temperature Transmitters - Deg F LCD
Temperature Transmitters c/w LCD Readout. Strap-on Version.
Current Switches
Greystone CS-425-HC Current Switch
Current AC switch used to start/stop a booster fan. This device senses when a device is drawing 1 Amp of current (or more) and then closes the output switch to activate the booster fan.
why buy from us?
We're engineers passionate about home ventilation and serious about customer service – so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.
Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.
