Greystone

Greystone Products

Current Sensors and Switches

Greystone Current Sensors

AC current SENSORS monitor line current for electrical loads and provide an output of 4-20 mA, 0-5 Vdc or 0-10 Vdc (model specific) to represent the load current.

Greystone Current Switches

AC current SWITCHES monitor line current for electrical loads such as pumps, conveyors, lighting, heaters or fans and close the output contacts when the trip point is exceeded.

Gas Detectors

Greystone CDD3 Carbon Dioxide Detectors with BACnet or Modbus

The CDD3 Series CO2 Detector w/ BACnet or Modbus Communciation. Low profile wall or duct mount enclosures and with optional Temperature and/or Relative Humidity sensing.

Greystone CDD5 Carbon Dioxide Detectors with Temp RH and Analog Output

CO2/Humidity/Temperature transmitter incorporates three sensors in one attractive wall mount enclosure for the most efficient environmental monitoring.

Greystone CMD Carbon Monoxide Gas Detectors

Environmental, industrial and commercial indoor Carbon Monoxide (CO) gas detectors. Availbale in space and duct enclosures.

Pneumatic Transducers

Greystone ETP-9500 Pneumatic Interface Transducers

Install between the controller and a pneumatic device. Available in 4-20ma and 0-10vdc 2 wire or 3 wire versions, with or without an enclosure.

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.

Greystone GFS Pressure Switches

General purpose airflow proving switch designed for HVAC applications. Used to sense positive, negative, or differential air pressure.

Pressure Transmitters - Liquid

Greystone PGS Gauge Pressure Transmitters

Gauge pressure transmitter complete with a 2 wire 4-20mA output, various pressure ranges, 1/4” NPT connection and 2 foot cable.

Relays & Misc Controls

Greystone LY General Purpose Relays

LY series general purpose relays. 10A switching capacity.

Greystone PS Regulated DC Power Supplies

Regulated DC Power Supplies. 24 VAC input/DC outputs.

Current Switches

Greystone CS-425-HC Current Switch For Booster Fans

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.

Complete listing of Greystone Products