Skip to content
HVAC Controls and Thermostats

HVAC Controls and Thermostats Total Products: 749

Sub Collections

Low Voltage Programmable Thermostats
Low Voltage Programmable Thermostats
Wi-Fi Programmable Low Voltage Thermostats
Wi-Fi Programmable Low Voltage Thermostats
OEM Thermostat Replacement Parts
OEM Thermostat Replacement Parts
Low Voltage Non-Programmable Analog Thermostats
Low Voltage Non-Programmable Analog Thermostats
Line Voltage Non-Programmable Analog Thermostats
Line Voltage Non-Programmable Analog Thermostats
Low Voltage Non-Programmable Digital Thermostats
Low Voltage Non-Programmable Digital Thermostats
Pneumatic Relays
Pneumatic Relays
Fan Control Switches
Fan Control Switches
Humidity Controls
Humidity Controls
Heat Exchanger Replacement Elements
Heat Exchanger Replacement Elements
Shell and Tube Heat Exchangers
Shell and Tube Heat Exchangers
Fan Coil Unit Thermostats
Fan Coil Unit Thermostats
HVAC Relays
HVAC Relays
Remote-Bulb Sensor Temperature Controls
Remote-Bulb Sensor Temperature Controls
Electric Actuators
Electric Actuators
Fireplace Thermostats and Remote Control Kits
Fireplace Thermostats and Remote Control Kits
Defrost Thermostats
Defrost Thermostats
Portable Heating and Cooling Plug-In Line Voltage
Portable Heating and Cooling Plug-In Line Voltage
Temporary Construction Thermostats
Temporary Construction Thermostats
Air Vents
Air Vents
Steam Traps
Steam Traps
Line Voltage Programmable Thermostats
Line Voltage Programmable Thermostats
HVAC Conduit Adapters
HVAC Conduit Adapters
OEM Thermostats
OEM Thermostats
Air Coil and Bi-Metal Sensor Temperature Controls
Air Coil and Bi-Metal Sensor Temperature Controls
Wi-Fi and Wireless Thermostat Connectivity Accesso
Wi-Fi and Wireless Thermostat Connectivity Accesso
Direct and Intermittent Ignition Igniters
Direct and Intermittent Ignition Igniters
Furnace Control Boards
Furnace Control Boards
Building Automation System Thermostat Controls
Building Automation System Thermostat Controls
Temperature Sensors
Temperature Sensors
Electric Actuator Accessories
Electric Actuator Accessories
Damper Linkages Crank Arms and Push Rods
Damper Linkages Crank Arms and Push Rods
HVAC Electrical Switches
HVAC Electrical Switches
Pneumatic Valves
Pneumatic Valves
Furnace Ignition Modules
Furnace Ignition Modules
Gas Valves
Gas Valves
Pilot Assemblies
Pilot Assemblies
Gas Appliance Controls
Gas Appliance Controls
Electric Appliance Controls
Electric Appliance Controls
Flame Sensors
Flame Sensors
Plate Heat Exchangers
Plate Heat Exchangers
Snap Disc Thermostats
Snap Disc Thermostats
Sequencers
Sequencers
Thermostat Wall Cover Plates and Mounting Kits
Thermostat Wall Cover Plates and Mounting Kits
Thermostat Remote Sensors
Thermostat Remote Sensors
Line Voltage Non-Programmable Digital Thermostats
Line Voltage Non-Programmable Digital Thermostats
Air Pressure Switches
Air Pressure Switches
Boiler Controls
Boiler Controls
Boiler Temperature Limit Controls
Boiler Temperature Limit Controls
Static and Total Pressure Probes
Static and Total Pressure Probes

Filters

$
$
Modulating Thermostat 2 Addition Outputs

Modulating Thermostat 2 Addition Outputs

HONEYWELL
$480.92 - $480.92
$480.92
$480.92 - $480.92
$480.92

VAV Thermostat Modulating Single Output Max and Min Setpoints for Heating and Cooling Modulating Conrol Night Setback (NSB) Terminal for Energy Sav...

View full Details
$480.92 - $480.92
$480.92
$480.92 - $480.92
$480.92
Thremostatic Radiator Control With Combi

Thremostatic Radiator Control With Combi

HONEYWELL HOME
$190.33 - $190.33
$190.33
$190.33 - $190.33
$190.33

Part

$190.33 - $190.33
$190.33
$190.33 - $190.33
$190.33
Temperature Sensor 24 in Lead

Temperature Sensor 24 in Lead

HONEYWELL
$312.24 - $312.24
$312.24
$312.24 - $312.24
$312.24

Temperature Sensor Input Voltage - Overall Height 62 in Overall Width 1/4 in Compatible with Series T775 Compatible with Grainger Part Number 278Y4...

View full Details
$312.24 - $312.24
$312.24
$312.24 - $312.24
$312.24
Pneu Temp Transmitter DA 40 to 240F

Pneu Temp Transmitter DA 40 to 240F

HONEYWELL
$1,304.22 - $1,304.22
$1,304.22
$1,304.22 - $1,304.22
$1,304.22

Pneumatic Temperature Transmitter Direct Acting Max Air Pressure 25 psi Max Ambient Temp 265 Degrees F Temp Control Range 40 Degrees to 240 Degrees...

View full Details
$1,304.22 - $1,304.22
$1,304.22
$1,304.22 - $1,304.22
$1,304.22
Pneumatic Tstat Heat 2Pipe High

Pneumatic Tstat Heat 2Pipe High

HONEYWELL
$1,094.70 - $1,094.70
$1,094.70
$1,094.70 - $1,094.70
$1,094.70

Pneumatic Temperature Transmitter Direct Acting Single Temperature Air Connections 1/4 in Barb Element Type Bulb Capillary Length 36 in Max Air Pre...

View full Details
$1,094.70 - $1,094.70
$1,094.70
$1,094.70 - $1,094.70
$1,094.70
Low Volt Prog Tstat Heat/Cool 18-30V AC

Low Volt Prog Tstat Heat/Cool 18-30V AC

HONEYWELL HOME
$894.60 - $894.60
$894.60
$894.60 - $894.60
$894.60

Low Voltage Thermostat Stages Heat 4 Heat Pump or 3 Conventional Stages Cool 2 Temp Settings per Day 4 Programs per Week 7 Terminal Designations A ...

View full Details
$894.60 - $894.60
$894.60
$894.60 - $894.60
$894.60
Remote-Control H/C 4 3/16in Length

Remote-Control H/C 4 3/16in Length

HONEYWELL
$597.68 - $597.68
$597.68
$597.68 - $597.68
$597.68

Line V Mechanical Tstat 120 to 277VAC 8A

$597.68 - $597.68
$597.68
$597.68 - $597.68
$597.68
Remote-Control H/C 4 3/16in Length

Remote-Control H/C 4 3/16in Length

HONEYWELL
$774.55 - $774.55
$774.55
$774.55 - $774.55
$774.55

Line V Mechanical Tstat 120 to 277VAC 8A

$774.55 - $774.55
$774.55
$774.55 - $774.55
$774.55
Pneumatic Transducer 2-10VDC 0-18 psi

Pneumatic Transducer 2-10VDC 0-18 psi

HONEYWELL
$1,296.16 - $1,296.16
$1,296.16
$1,296.16 - $1,296.16
$1,296.16

Electronic Pneumatic Transducer Voltage Input Type Max Safe Air PSI 30 psi Control Air Pressure 0 to 18 psi Air Connections 5/32 in or 1/4 in Barb ...

View full Details
$1,296.16 - $1,296.16
$1,296.16
$1,296.16 - $1,296.16
$1,296.16
Temp Control Heat and Cool -40-248F

Temp Control Heat and Cool -40-248F

HONEYWELL
$583.73 - $583.73
$583.73
$583.73 - $583.73
$583.73

Temperature Control Temperature Control Function Heat and Cool Product Type Temperature Control Number of Stages Single Contact Form SPDT NEMA Rati...

View full Details
$583.73 - $583.73
$583.73
$583.73 - $583.73
$583.73
Outdoor Temperature Sensor

Outdoor Temperature Sensor

HONEYWELL
$59.65 - $59.65
$59.65
$59.65 - $59.65
$59.65

Temperature Sensor Product Type Outdoor Temperature Sensor For Use With Building Automation Systems Building Automation System Compatible Compatibl...

View full Details
$59.65 - $59.65
$59.65
$59.65 - $59.65
$59.65
Convertor Analog 212 Deg 0-10V

Convertor Analog 212 Deg 0-10V

IFM
$168.69 - $168.69
$168.69
$168.69 - $168.69
$168.69

Converter IP Rating IP67 Input Voltage 0 to 10V AC Compatible with Manufacturer Model Number PT100 PT1000 Standards CE cULus Listed DIN IEC 68-2-27...

View full Details
$168.69 - $168.69
$168.69
$168.69 - $168.69
$168.69
Convertor Scaled Analog 302 Deg

Convertor Scaled Analog 302 Deg

IFM
$167.52 - $167.52
$167.52
$167.52 - $167.52
$167.52

Converter IP Rating IP67 Input Voltage 20 to 32V DC Compatible with Manufacturer Model Number PT100 PT1000 Standards CE cULus Listed DIN IEC 68-2-2...

View full Details
$167.52 - $167.52
$167.52
$167.52 - $167.52
$167.52
Low Volt NP Digital Tstat H or C Wired

Low Volt NP Digital Tstat H or C Wired

HONEYWELL HOME
$150.07 - $150.07
$150.07
$150.07 - $150.07
$150.07

Low Voltage Thermostat Heat or Cool Manual Compatible System Type Heat Pump with Aux Push Button Slide Switch Dehumidification Control No Digit Siz...

View full Details
$150.07 - $150.07
$150.07
$150.07 - $150.07
$150.07
Temp Control Heat and Cool -40-248F

Temp Control Heat and Cool -40-248F

HONEYWELL
$346.84 - $346.84
$346.84
$346.84 - $346.84
$346.84

Temperature Control Temperature Control Function Heat and Cool Product Type Temperature Control Number of Stages Single Contact Form SPDT NEMA Rati...

View full Details
$346.84 - $346.84
$346.84
$346.84 - $346.84
$346.84
Pneumatic Tstat Heat or Cool 1Pipe Low

Pneumatic Tstat Heat or Cool 1Pipe Low

SIEMENS
$161.75 - $161.75
$161.75
$161.75 - $161.75
$161.75

Pneumatic Thermostat Direct Acting 1 Pipe Heating and Cooling Single Temperature Control Air Pressure 3 to 15 psi Air Connections 5/32 in Barb Elem...

View full Details
$161.75 - $161.75
$161.75
$161.75 - $161.75
$161.75
Cal-Stat Tstat Basic 2 1/2in insertion

Cal-Stat Tstat Basic 2 1/2in insertion

VULCAN
$138.90 - $138.90
$138.90
$138.90 - $138.90
$138.90

Cal-Stat Thermostat Thermostat Type Process Thermostat Sheath Dia 1/2 in Overall Length 3 1/4 in Insertion Depth 2 5/8 in Switch Action Close on Ri...

View full Details
$138.90 - $138.90
$138.90
$138.90 - $138.90
$138.90
Low Volt NP Analog Tstat Heat/Cool

Low Volt NP Analog Tstat Heat/Cool

EMERSON
$54.15 - $54.15
$54.15
$54.15 - $54.15
$54.15

Low Voltage Thermostat Terminal Designations A B G O RC RH W Y System Switching Heat-Cool-Off Fan Switching Auto-On Dual Transformer Compatible Yes...

View full Details
$54.15 - $54.15
$54.15
$54.15 - $54.15
$54.15
Low Volt NP Analog Tstat Heat/Cool

Low Volt NP Analog Tstat Heat/Cool

EMERSON
$50.73 - $50.73
$50.73
$50.73 - $50.73
$50.73

Low Voltage Thermostat Terminal Designations A B G O RC RH W Y System Switching Heat-Cool-Off Fan Switching Auto-On Dual Transformer Compatible Yes...

View full Details
$50.73 - $50.73
$50.73
$50.73 - $50.73
$50.73
Infinite Switch 120V AC 450F Max

Infinite Switch 120V AC 450F Max

ROBERTSHAW
$33.60 - $33.60
$33.60
$33.60 - $33.60
$33.60

Infinite Switch Product Type Infinite Switch Capillary Tube Length Not Applicable Sensing Bulb Diameter Not Applicable Stem Length 2 in Sensing Bul...

View full Details
$33.60 - $33.60
$33.60
$33.60 - $33.60
$33.60
Stage Module 120/240V AC 5 in H

Stage Module 120/240V AC 5 in H

JOHNSON CONTROLS
$181.80 - $181.80
$181.80
$181.80 - $181.80
$181.80

Stage Module Input Voltage 120V AC 240V AC Overall Height 5 in Overall Width 2 3/8 in Compatible with Series A350 A350E A350P A350R Compatible with...

View full Details
$181.80 - $181.80
$181.80
$181.80 - $181.80
$181.80
Diff Pressure Control SPST 8 to 70psig

Diff Pressure Control SPST 8 to 70psig

JOHNSON CONTROLS
$343.43 - $343.43
$343.43
$343.43 - $343.43
$343.43

Differential Pressure Control Contact Form SPST Switch Action Open on Fall Pressure Differential - Minimum 8 psi Pressure Differential Max 30 psi P...

View full Details
$343.43 - $343.43
$343.43
$343.43 - $343.43
$343.43
Dual Pressure Control Differential SPST

Dual Pressure Control Differential SPST

JOHNSON CONTROLS
$381.44 - $381.44
$381.44
$381.44 - $381.44
$381.44

Dual Pressure Control Product Type Dual Pressure Control Pressure Type Differential Minimum Pressure Range - Low Side 12 in Hg Maximum Pressure Ran...

View full Details
$381.44 - $381.44
$381.44
$381.44 - $381.44
$381.44
Temperature Sensor Nickel -50-250 F

Temperature Sensor Nickel -50-250 F

JOHNSON CONTROLS
$91.36 - $91.36
$91.36
$91.36 - $91.36
$91.36

Temperature Sensor Display Type None Sensing Element Type Nickel Output Not Applicable Housing Type Conduit Box Housing Material Nickel Probe Lengt...

View full Details
$91.36 - $91.36
$91.36
$91.36 - $91.36
$91.36

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare