1. HVAC Thermostats Offered
  2. sku: 4942848257387682
  3. PRO1 IAQ T501ML4

PRO1 IAQ T501ML4 Line Volt Np Analog Tstat Dpst 1H 60FD44

T501ml4 Pro1 Iaq Line Volt Np Analog Tstat 1h White Dpst 60fd44

( Brand: Pro1 Iaq ), ( Manufacturer Part Number: T501ML4 )

Review PRO1 IAQ Line Volt Np Analog Tstat 1h White Dpst

The PRO1 IAQ T501ML4 Line Volt Nap Analog Thermostat is a sophisticated HVAC controlling device designed to optimize indoor comfort and air quality. This thermostat is a part of the PRO1 IAQ series, which is known for its advanced features and sleek design.

The T501ML4 is a Nap (Non-Programmable) model, which means it does not offer the ability to schedule temperature settings. However, it is a Digital Position Setback (DPS) thermostat, which allows for a slight adjustment of the temperature setting before the temperature is reached. This feature can help save energy by not overworking the HVAC system unnecessarily.

This thermostat is designed for Line Voltage systems, which requires a direct connection to the electrical power source. It is also an Analog model, meaning it uses an electromechanical mechanism to measure temperature. The temperature sensing element is located at the rear of the thermostat, and the thermostat has a 1-Hour differential setting.

The PRO1 IAQ T501ML4 is also equipped with an Indoor Air Quality (IAQ) sensor. This sensor monitors the indoor air quality and can be used to trigger the HVAC system to run when necessary, improving indoor air quality and overall comfort.

The thermostat is designed with a modern, sleek design and easy-to-read digital display. It is also equipped with a large, backlit keypad, making it easy to operate even in low-light conditions. The thermostat is compatible with both 115V and 230V power supplies and has a standard 60mm (2.36 inches) diameter faceplate.

In summary, the PRO1 IAQ T501ML4 Line Volt Nap Analog Thermostat is a modern, advanced thermostat designed to optimize indoor comfort and air quality. It is a non-programmable thermostat with a digital display, a large backlit keypad, and an indoor air quality sensor. It is compatible with Line Voltage systems and has a standard 60mm faceplate.

The Honeywell IAQ T501ML4 Line Voltage Analog Thermostat (60FD44) is a single-stage, 1-wire, 5-1-Day Programmable thermostat designed for use with heating and cooling systems. Here are some potential pros and cons of buying this particular model:

Pros:

1. Analog design: Some homeowners prefer the simplicity and reliability of an analog thermostat over a digital one.

2. Single-stage: This thermostat is suitable for homes with single-stage heating and cooling systems, which are less complex and typically less expensive to operate.

3. 5-1-Day Programmability: This feature allows users to set different temperatures for different days of the week, which can help save energy and reduce utility bills.

4. Line voltage: This thermostat operates on line voltage, which can make installation easier and more cost-effective than models that require a transformer or a C-wire.

Cons:

1. Limited features: Compared to newer digital thermostats, this model does not offer advanced features such as Wi-Fi connectivity, smartphone control, or compatibility with home automation systems.

2. Manual temperature adjustment: Since this is an analog thermostat, temperature adjustments must be made manually using the dial or buttons on the thermostat.

3. Lack of feedback: Unlike digital thermostats, which display the current temperature and other diagnostic information, this model does not provide any feedback beyond the temperature setting.

In conclusion, the Honeywell IAQ T501ML4 Line Voltage Analog Thermostat (60FD44) is a simple and reliable option for homeowners with single-stage heating and cooling systems who prefer an analog design and don't need advanced features. However, it may not be the best choice for those who want more flexibility, feedback, or energy-saving capabilities.

If you're looking for a more advanced thermostat with Wi-Fi connectivity or other smart features, you may want to consider a digital model instead. However, if you value the simplicity and reliability of an analog thermostat, and your heating and cooling system is compatible with this model, then the Honeywell IAQ T501ML4 Line Voltage Analog Thermostat (60FD44) could be a good choice for you.

Details:

Power adapters and other modifications may be necessary for proper operation in countries.

part #: t501ml4 prices

  • $46.28-$54.16

specifications thermoditto:

  • brand: Pro1 Iaq
  • mpn: T501ml4

general thermoditto:

  • Heating, Cooling Air > Thermostats > Non-programmable Thermostats
  • condition: New

offer thermoditto:

  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • started: August 25, 2025

shipping thermoditto:

  • cost: $6.99
  • class: Standard
  • service: UPS Ground
  • transit: 3-5 Days
  • type: Fixed
  • carrier: UPS

returns thermoditto:

  • method: Money back
  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

seller thermoditto:

  • rating: 99.3%
  • city: Lake Forest, IL
  • # reviews: 110976

payments thermoditto:

  • wallet: Paypal
  • other
  • credit card: Discover
category: home & garden > heating, cooling air > thermostats > non-programmable thermostats, sku: 4942848257387682,

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5 offers $46.28–$54.16 USD
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  • Offer #5: $395.00 price + $0.00 shipping estimate = $395.00* total. Non Programmable - Heat / Off / Cool. IAQ 4-Wire Heat Only Thermostat.FREE SHIPPING

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