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Greystone Energy Systems

Greystone Energy Systems Inc. manufactures HVAC sensors and transducers with a wide range of products related to temperature, humidity, pressure, current, air quality, and hazardous gases.

BACnet/Modbus/LONworks

  1. CO2 Transmitters

  2. Combination Humidity/ Temp Room

  3. Gas Transmitters (CO)

  4. Room Sensors

COVID-19 Resources For Buildings & Occupants

  1. Particulate Sensors

Farming & Horticulture

  1. CO2 Transmitters

  2. Combination Humidity/ Temp Room

Flow

  1. Accessories - Flow

  2. Airflow Measuring Probes

  3. Water Flow Switches

Gas Detectors

  1. Accessories - Gas

  2. Air Quality Sensors

  3. CO2 Transmitters

  4. Gas Transmitters (Chlorine, Combustibles, etc.)

  5. Gas Transmitters (CO)

  6. Particulate Sensors

Healthy Building Technologies

  1. Air Quality Sensors

  2. Particulate Sensors

Humidity / Condensation

  1. Accessories - Humidity

  2. Combination Humidity/ Temp Duct

  3. Combination Humidity/ Temp Outside Air

  4. Combination Humidity/ Temp Room

  5. Dew Point Sensors

  6. Duct Humidity Sensors

  7. Outside Air Humidity Sensors

  8. Room Humidity Sensors

Interface Devices / Signal Conversion

  1. Accessories - Interface Devices

  2. Analog To Analog

  3. Analog To Pneumatic

  4. Analog To Relay

  5. Analog To Resistance

Leak Detection

  1. Moisture Sensors

Power Meters/Current Switches/Current Sensors

  1. Current Sensors

  2. Current Switches

Pressure

  1. Accessories - Pressure

  2. Differential Pressure Switches

  3. Differential Pressure Transmitters

  4. Gauge Pressure Switches

  5. Gauge Pressure Transmitters

  6. Pitot Tubes & Pressure Probes

  7. Pressure Monitors

Temperature Sensors

  1. Accessories - Temperature

  2. Duct Averaging Sensors

  3. Duct Sensors

  4. Freezer and Extreme Temperature Sensors

  5. Immersion Sensors

  6. Outside Air Sensors

  7. Remote Probes

  8. Room Sensors

  9. Strap-On Sensors

  10. Thermowells

  11. Wall Plate Sensors

Thermostats & Controllers

  1. Accessories - Thermostats

  2. Freezestats

  3. High Limit Thermostats

  4. Snow Melt Controls

Transformers & Power Supplies

  1. Accessories - Transformers

  2. Power Supplies