Greystone Energy Systems Inc. is one of North America's largest ISO registered manufacturers of HVAC sensors and transmitters for Building Automation Management Systems.

  - Temperature Sensors
  - Current Switches & Sensors
  - Temperature Transmitters
  - KW/KWH Monitor
  - Humidity Transmitters
  - Signal Conditioning Interfaces
  - Gauge Pressure Transmitters
  - Power Supplies
  - Differential Pressure Transmitters
  - Air Quality Monitors
  - Static Pressure Transmitters
  - Carbon Dioxide Detectors
  - Air Flow Transmitters
  - Carbon Monoxide Detectors

An overview

Greystone Energy Systems Inc. is internationally recognized as one of the largest ISO registered manufacturers of HVAC sensors and transducers for Building Automation Management Systems. We have conscientiously established a worldwide reputation as an industry leader by maintaining leading-edge design technology, prompt technical support, and a commitment to on-time deliveries.

The company’s vision is to design and manufacture a wide range of products for sensing measurement and transmittal of data related to temperature, humidity, pressure, current, air quality, and hazardous gases. This vision is being realized through our rigid adherence to quality standards, the efficient service we offer our customers, the genuine pride we take in our work, and our continued quest to advance the state of our industry through research and development.

International Sales and Service

Having started in Canada, we successfully penetrated this market in our first four years of operation. In 1987, we launched our marketing campaign into the United States. Our focus expanded in 1989 when we moved into the Southeast Asia market, and again in 1998 moving into Europe and the Middle East. Recently, our marketing efforts have expanded to include Central and South America.

With supporting field representation in all our markets, we are capable of understanding regional ambiguities and providing technical support as needed.

ISO 9001 Certified

We have conscientiously established a reputation as a manufacturer dedicated to maintaining an exemplary adherence to Quality Management Standards.

As an ISO 9000-registered manufacturer with 9001 certification, we are able to meet stringent quality standards throughout our organization, and demand the same from our suppliers.

To achieve registration, we have implemented a comprehensive Quality Management System, and are audited annually by an independent outside agency. This certification system provides tangible evidence of product reliability and conformity with our customers’ requirements.

Engineering, Research and Development

Our design engineers are continually providing advanced technological solutions to meet and exceed today’s HVAC challenges. They are constantly researching industry changes to provide inspiration for new product innovation. They also work closely with our customers’ engineering and sales departments to assist them in developing leading-edge products.

The department is extremely well-equipped with the latest in testing and ancillary equipment.

Production Capacity

Since our inception, Greystone has followed a planned growth philosophy, a major component of which is to anticipate and provide for production increases.

Our specialization permits us to offer a complete range of components for HVAC systems, with a wide selection of specification variables. We have the production depth and flexibility to commit to Just-In-Time deliveries… a capability you can count on.