Featured Brand — Honeywell
New T-Series Controllers.
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Industry-leading programmable thermostats and DDC controllers in stock at all four ECSI branches. Same-day pickup available.
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Honeywell TB7100A1013 Programmable Controller
SKU: HW-CTRL
Honeywell TB7220U1012 Touchscreen Stat
SKU: HW-CTRL
Honeywell TB8220U1003 7-Day Prog. Thermostat
SKU: HW-CTRL
On Your List — 3 items
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Honeywell
TB7100A1013 Programmable Controller
SKU: HW-TB7100A
Controllers
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LMB24-3-T On/Off Spring Return Actuator
SKU: BL-LMB24-3T
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ACI
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SKU: ACI-A1KO
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Series 616 Differential Pressure Transm.
SKU: DW-616-4
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E50H5 DIN Rail True RMS Power Meter
SKU: VR-E50H5
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QAE2120.010 Immersion Temp Sensor
SKU: SI-QAE2120
Sensors
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Latest from ECSI
May 14, 2026
New Honeywell Controllers Now in Stock
The latest Honeywell T-Series controllers are now available at all four ECSI locations. Competitive pricing for contractor accounts.
Read More →Apr 28, 2026
T1L Webinar: Register for the April Session
Join our free virtual webinar covering T1L installation and setup. Open to contractors and engineers. Registration link inside.
Read More →Apr 3, 2026
VFD Training Coming to Nashville in October
We're bringing our popular VFD & TC300/500 training class to Nashville this fall. Seats are limited — reserve yours now.
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