PRO1 T855ISH, Universal, Digital, Thermostat, Wi-Fi Enabled (5H/3C)

HVAC thermostat — PRO1 T855ISH, Universal, Digital, Thermostat, Wi-Fi Enabled (5H/3C)

The HVAC thermostat (manufacturer part T855ISH) is a genuine OEM thermostat available at Cedars HVAC, your trusted source for heating, cooling, and refrigeration parts. We stock this thermostat for fast nationwide shipping from our Miami warehouse, so contractors, facility managers, and homeowners can get the exact replacement they need without delay.

Product details

The Pro1 T855ISH thermostat features: 16 Remote sensor capable, 8 sq. inch display, Blue backlight, Glow in the dark light button, Easy access battery compartment, Two and four occupancy/non-occupancy time periods available, Partial and full keypad lockout, Adjustable setpoint limits, Summer away mode Control, Humidity and dehumidify control, Set dual fuel balance points (requires R250S), Compatible with indoor remote sensors (R251S), Ventilation control, IAQ fan settings, Advanced pre-occupancy purge, Auto changeover, Customizable staging logic, and 5 Year Warranty.

Why buy from Cedars HVAC

• Genuine OEM HVAC parts — not aftermarket substitutes
• Contractor-friendly pricing on every thermostat
• Fast nationwide shipping from Miami, FL
• Real HVAC expertise — call us at (305) 850-6693 if you need help confirming compatibility
• Financing available through PayPal Pay Later

About this part

This HVAC thermostat is part of our Thermostats catalog. Contact us if you need help identifying compatible models or sourcing volume quantities. For installation guidance, always refer to the manufacturer documentation and consult a licensed HVAC technician where required.

Shipping and returns

Most HVAC thermostat orders ship the same or next business day from Cedars HVAC in Miami, Florida. Standard ground shipping covers the continental United States, and expedited options are available at checkout. Returns are accepted within 30 days on unopened, uninstalled parts — see our return policy for full details. International shipping is available on request; contact our team for a quote.

Frequently asked questions

Is this part new and in stock? Yes, we list only in-stock items. The HVAC thermostat ships from our Miami warehouse the same or next business day.

Will this thermostat fit my equipment? Compatibility depends on the model and revision of your existing equipment. If you need help confirming fitment for the HVAC thermostat, call us at (305) 850-6693 with your unit model number and we will confirm before you order.

Can I get a contractor or wholesale discount? Yes. Cedars HVAC offers volume pricing for licensed HVAC contractors, property managers, and resellers. Request contractor pricing or call us to set up an account.

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