Collection: By Manufacturer: Greystone Energy
Greystone Energy Systems, a Bemsiq Group company with 40+ years of experience, is a leading manufacturer of HVAC sensors. Following its 2021 acquisition, it expanded in 2024 by adding QEL and Armstrong Monitoring to strengthen its gas detection portfolio for building automation. Shop all of the items that we offer from Greystone here. We will be adding more to our catalog in 2026!
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Greystone TXSOE12XA001 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, w/ thread adaptor & cable gl& adaptor, 1000 Ohm platinum, , 4-20 mA 2 or 3 wire, 0°C to 35°C (32°F to 95°F)
Regular price $106.70 USDRegular priceSale price $106.70 USD -
Greystone TXSOA12XE006 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 0-10 VDC 3 wire, -50°C to 50°C (-58°F to 122°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XE002 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 0-10 VDC 3 wire, 0°C to 50°C (32°F to 122°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XE001 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 0-10 VDC 3 wire, 0°C to 35°C (32°F to 95°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XD006 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 0-5 VDC 3 wire, -50°C to 50°C (-58°F to 122°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XD002 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 0-5 VDC 3 wire, 0°C to 50°C (32°F to 122°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XD001 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 0-5 VDC 3 wire, 0°C to 35°C (32°F to 95°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XA006 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 4-20 mA 2 or 3 wire, -50°C to 50°C (-58°F to 122°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XA002 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 4-20 mA 2 or 3 wire, 0°C to 50°C (32°F to 122°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone TXSOA12XA001 Temp Transmitter, Strap-On - 254 mm (10") stainless clamp, ABS enclosure w/ hinged & gasketed cover, 1000 Ohm platinum, , 4-20 mA 2 or 3 wire, 0°C to 35°C (32°F to 95°F)
Regular price $100.41 USDRegular priceSale price $100.41 USD -
Greystone UPF2BX Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, BACnet®, No Relay
Regular price $464.45 USDRegular priceSale price $464.45 USD -
Greystone UPF2BR Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, BACnet®, Relay
Regular price $481.59 USDRegular priceSale price $481.59 USD -
Greystone UPF2AX Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, Analog, No Relay
Regular price $350.13 USDRegular priceSale price $350.13 USD -
Greystone UPF2AR Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, Analog, Relay
Regular price $367.28 USDRegular priceSale price $367.28 USD -
Greystone UPF1BX Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, BACnet®, No Relay
Regular price $407.27 USDRegular priceSale price $407.27 USD -
Greystone UPF1BR Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, BACnet®, Relay
Regular price $424.42 USDRegular priceSale price $424.42 USD -
Greystone UPF1AX Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, Analog, No Relay
Regular price $292.99 USDRegular priceSale price $292.99 USD -
Greystone UPF1AR Ultra Low Pressure Transducer, Polycarbonate enclosure with hinged gasketed cover,thread adapter and cable gland fitting, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, Analog, Relay
Regular price $310.10 USDRegular priceSale price $310.10 USD -
Greystone UPB2BX Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, BACnet®, No Relay
Regular price $457.30 USDRegular priceSale price $457.30 USD -
Greystone UPB2BR Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, BACnet®, Relay
Regular price $474.41 USDRegular priceSale price $474.41 USD -
Greystone UPB2AX Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, Analog, No Relay
Regular price $342.94 USDRegular priceSale price $342.94 USD -
Greystone UPB2AR Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±0.25 €œWC, ±0.125 €œWC, ±60 Pa, ±30 Pa, Analog, Relay
Regular price $360.14 USDRegular priceSale price $360.14 USD -
Greystone UPB1BX Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, BACnet®, No Relay
Regular price $400.12 USDRegular priceSale price $400.12 USD -
Greystone UPB1BR Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, BACnet®, Relay
Regular price $417.23 USDRegular priceSale price $417.23 USD -
Greystone UPB1AX Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, Analog, No Relay
Regular price $285.82 USDRegular priceSale price $285.82 USD -
Greystone UPB1AR Ultra Low Pressure Transducer, Polycarbonate with hinged and gasketed cover, ±1 €WC, ±0.5 €WC, ±250 Pa ±125 Pa,, Analog, Relay
Regular price $303.00 USDRegular priceSale price $303.00 USD -
Greystone CERMC59 Room Carbon Dioxide Sensor, 0-2000 ppm, 10,000 Ohm NTC Thermistor, ±0.2 C
Regular price $204.80 USDRegular priceSale price $204.80 USD -
Greystone CERMC24 Room Carbon Dioxide Sensor, 0-2000 ppm, 10,000 Ohm, type 2, NTC Thermistor, ±0.2 CType 59 - 10,000 ohm NTC Thermistor ±0.2°C
Regular price $200.51 USDRegular priceSale price $200.51 USD -
Greystone CERMC20 Room Carbon Dioxide Sensor, 0-2000 ppm, 20,000 Ohm, NTC Thermistor, ±0.2 CType 24 - 10,000 ohm Type 2 NTC Thermistor ±0.2°C
Regular price $200.51 USDRegular priceSale price $200.51 USD -
Greystone CERMC14 Room Carbon Dioxide Sensor, 0-2000 ppm, 10,000 Ohm, type 3, NTC Thermistor, ±0.2 C c/w 11K shunt resistorType 20 - 20,000 ohm NTC Thermistor ±0.2°C
Regular price $204.80 USDRegular priceSale price $204.80 USD -
Greystone CERMC13 Room Carbon Dioxide Sensor, 0-2000 ppm, 1000 Ohm Nickel, Class B, DIN 43760Type 14 - 10,000 ohm Thermistor ±0.2°C c/w 11K Shunt Resistor
Regular price $204.80 USDRegular priceSale price $204.80 USD -
Greystone CERMC12 Room Carbon Dioxide Sensor, 0-2000 ppm, 1000 Ohm Platinum, IEC 751, 385 Alpha, thin filmType 13 - 1000 ohm Nickel RTD ±0.3°C
Regular price $204.80 USDRegular priceSale price $204.80 USD -
Greystone CERMC08 Room Carbon Dioxide Sensor, 0-2000 ppm, 2.252K Ohm, NTC Thermistor, ±0.2 CType 12 - Pt1000 - 1000 ohm Platinum RTD ±0.3°C
Regular price $204.80 USDRegular priceSale price $204.80 USD -
Greystone CERMC07 Room Carbon Dioxide Sensor, 0-2000 ppm, 10,000 Ohm, type 3, NTC Thermistor, ±0.2 CType 8 - 2.252K ohm NTC Thermistor ±0.2°C
Regular price $200.51 USDRegular priceSale price $200.51 USD -
Greystone CERMC06 Room Carbon Dioxide Sensor, 0-2000 ppm, 3000 Ohm, NTC Thermistor, ±0.2 CType 7 - 10,000 ohm Type 3 NTC Thermistor ±0.2°C
Regular price $200.51 USDRegular priceSale price $200.51 USD -
Greystone CERMC05 Room Carbon Dioxide Sensor, 0-2000 ppm, 1801 Ohm, NTC Thermistor, ±0.2 CType 6 - 3000 ohm NTC Thermistor ±0.2°C
Regular price $200.51 USDRegular priceSale price $200.51 USD -
Greystone CERMC02 Room Carbon Dioxide Sensor, 0-2000 ppm, 100 Ohm Plat. IEC 751, 385 Alpha, thin filmType 5 - 1800 ohm NTC Thermistor ±0.2°C
Regular price $204.80 USDRegular priceSale price $204.80 USD -
Greystone CERMC00 Room Carbon Dioxide Sensor, 0-2000 ppm, No temperature sensorType 2 - Pt100 - 100 ohm Platinum RTD ±0.3°C
Regular price $192.12 USDRegular priceSale price $192.12 USD -
Greystone HTRC5NVS Room Humidity/ Temperature Transmitter, 5%, Concealed LCD, 0-5 Vdc or 0-10 Vdc output - Jumper selectable, Override switch (Includes OCC input)
Regular price $188.80 USDRegular priceSale price $188.80 USD -
Greystone HTRC5NV Room Humidity/ Temperature Transmitter, 5%, Concealed LCD, 0-5 Vdc or 0-10 Vdc output - Jumper selectable
Regular price $183.57 USDRegular priceSale price $183.57 USD -
Greystone HTRC5NIS Room Humidity/ Temperature Transmitter, 5%, Concealed LCD, 4-20 mA output, Override switch (Includes OCC input)
Regular price $188.80 USDRegular priceSale price $188.80 USD -
Greystone HTRC5NI Room Humidity/ Temperature Transmitter, 5%, Concealed LCD, 4-20 mA output
Regular price $183.57 USDRegular priceSale price $183.57 USD -
Greystone HTRC5LVS Room Humidity/ Temperature Transmitter, 5%, Viewable LCD, 0-5 Vdc or 0-10 Vdc output - Jumper selectable, Override switch (Includes OCC input)
Regular price $215.04 USDRegular priceSale price $215.04 USD -
Greystone HTRC5LV Room Humidity/ Temperature Transmitter, 5%, Viewable LCD, 0-5 Vdc or 0-10 Vdc output - Jumper selectable
Regular price $209.81 USDRegular priceSale price $209.81 USD -
Greystone HTRC5LIS Room Humidity/ Temperature Transmitter, 5%, Viewable LCD, 4-20 mA output, Override switch (Includes OCC input)
Regular price $215.04 USDRegular priceSale price $215.04 USD -
Greystone HTRC5LI Room Humidity/ Temperature Transmitter, 5%, Viewable LCD, 4-20 mA output
Regular price $209.81 USDRegular priceSale price $209.81 USD -
Greystone HTRC3NVS Room Humidity/ Temperature Transmitter, 3%, Concealed LCD, 0-5 Vdc or 0-10 Vdc output - Jumper selectable, Override switch (Includes OCC input)
Regular price $241.28 USDRegular priceSale price $241.28 USD -
Greystone HTRC3NV Room Humidity/ Temperature Transmitter, 3%, Concealed LCD, 0-5 Vdc or 0-10 Vdc output - Jumper selectable
Regular price $236.04 USDRegular priceSale price $236.04 USD -
Greystone HTRC3NIS Room Humidity/ Temperature Transmitter, 3%, Concealed LCD, 4-20 mA output, Override switch (Includes OCC input)
Regular price $241.28 USDRegular priceSale price $241.28 USD -
Greystone HTRC3NI Room Humidity/ Temperature Transmitter, 3%, Concealed LCD, 4-20 mA output
Regular price $236.04 USDRegular priceSale price $236.04 USD