Honeywell Home DT4R Black Room Thermostat Spare | DTS42BRFST22 Wireless
The Honeywell Home DT4R Black Room Thermostat DTS42BRFST22 is a spare wireless thermostat head for replacing failed DT4R units or expanding existing systems. Modern slim design with large energy-efficient LED display and full backwards/forwards compatibility across Honeywell RF ecosystem including evohome and HCC100.
Key Features
- Spare thermostat only - requires existing compatible receiver (DT4R, evohome, HCC100).
- Ramses II & III RF protocol ensures seamless integration with all Honeywell RF products.
- Built-in eco-mode provides timed temperature offset for energy savings.
- Energy-efficient LED display auto-off technology with wake-up button.
- Backlit captive touch buttons for intuitive operation in all lighting.
- Fuzzy Logic control optimises boiler operation for precise temperature maintenance.
Why Choose DT4R Black Spare Thermostat?
Cost-effective replacement for failed thermostat heads maintaining full system functionality without complete kit replacement.
Perfect match for black DT4R installations or system expansion with consistent styling and performance.
Suitable For
- DT4R system replacements (thermostat head failure).
- Evohome and HCC100 expansions requiring additional thermostats.
- Existing Honeywell RF installations needing spare parts stock.
Technical Specifications
- Brand: Honeywell Home by Resideo
- Model: DT4R Black Spare Thermostat Head
- MPN: DTS42BRFST22
- GTIN: 5059085002695
- Power Supply: 2 x AA batteries
- Battery Life: Approx. 3.5 years
- Set Point Range: 5 °C to 35 °C
- Display Range: 0 °C to 40 °C
- Sensor: 10k NTC thermistor @ 25 °C
- RF Frequency: ISM 868.0-868.6 MHz (Ramses II/III)
- Range: 30 m residential
- ErP Class: Class V (+3 %)
- Dimensions: 101 x 101 x 54 mm (WxHxD)
- Weight: 130 g
- Warranty: 2 years
Compatibility & Installation
Direct replacement for DT4R black thermostats or spare for evohome/HCC100 systems. Simple battery installation and automatic binding to existing receivers. Supports heat pumps, zoning, underfloor heating, and 24-230V on/off appliances.
Original: $85.03
-65%$85.03
$29.76More Images
Honeywell Home DT4R Black Room Thermostat Spare | DTS42BRFST22 Wireless
The Honeywell Home DT4R Black Room Thermostat DTS42BRFST22 is a spare wireless thermostat head for replacing failed DT4R units or expanding existing systems. Modern slim design with large energy-efficient LED display and full backwards/forwards compatibility across Honeywell RF ecosystem including evohome and HCC100.
Key Features
- Spare thermostat only - requires existing compatible receiver (DT4R, evohome, HCC100).
- Ramses II & III RF protocol ensures seamless integration with all Honeywell RF products.
- Built-in eco-mode provides timed temperature offset for energy savings.
- Energy-efficient LED display auto-off technology with wake-up button.
- Backlit captive touch buttons for intuitive operation in all lighting.
- Fuzzy Logic control optimises boiler operation for precise temperature maintenance.
Why Choose DT4R Black Spare Thermostat?
Cost-effective replacement for failed thermostat heads maintaining full system functionality without complete kit replacement.
Perfect match for black DT4R installations or system expansion with consistent styling and performance.
Suitable For
- DT4R system replacements (thermostat head failure).
- Evohome and HCC100 expansions requiring additional thermostats.
- Existing Honeywell RF installations needing spare parts stock.
Technical Specifications
- Brand: Honeywell Home by Resideo
- Model: DT4R Black Spare Thermostat Head
- MPN: DTS42BRFST22
- GTIN: 5059085002695
- Power Supply: 2 x AA batteries
- Battery Life: Approx. 3.5 years
- Set Point Range: 5 °C to 35 °C
- Display Range: 0 °C to 40 °C
- Sensor: 10k NTC thermistor @ 25 °C
- RF Frequency: ISM 868.0-868.6 MHz (Ramses II/III)
- Range: 30 m residential
- ErP Class: Class V (+3 %)
- Dimensions: 101 x 101 x 54 mm (WxHxD)
- Weight: 130 g
- Warranty: 2 years
Compatibility & Installation
Direct replacement for DT4R black thermostats or spare for evohome/HCC100 systems. Simple battery installation and automatic binding to existing receivers. Supports heat pumps, zoning, underfloor heating, and 24-230V on/off appliances.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Honeywell Home DT4R Black Room Thermostat DTS42BRFST22 is a spare wireless thermostat head for replacing failed DT4R units or expanding existing systems. Modern slim design with large energy-efficient LED display and full backwards/forwards compatibility across Honeywell RF ecosystem including evohome and HCC100.
Key Features
- Spare thermostat only - requires existing compatible receiver (DT4R, evohome, HCC100).
- Ramses II & III RF protocol ensures seamless integration with all Honeywell RF products.
- Built-in eco-mode provides timed temperature offset for energy savings.
- Energy-efficient LED display auto-off technology with wake-up button.
- Backlit captive touch buttons for intuitive operation in all lighting.
- Fuzzy Logic control optimises boiler operation for precise temperature maintenance.
Why Choose DT4R Black Spare Thermostat?
Cost-effective replacement for failed thermostat heads maintaining full system functionality without complete kit replacement.
Perfect match for black DT4R installations or system expansion with consistent styling and performance.
Suitable For
- DT4R system replacements (thermostat head failure).
- Evohome and HCC100 expansions requiring additional thermostats.
- Existing Honeywell RF installations needing spare parts stock.
Technical Specifications
- Brand: Honeywell Home by Resideo
- Model: DT4R Black Spare Thermostat Head
- MPN: DTS42BRFST22
- GTIN: 5059085002695
- Power Supply: 2 x AA batteries
- Battery Life: Approx. 3.5 years
- Set Point Range: 5 °C to 35 °C
- Display Range: 0 °C to 40 °C
- Sensor: 10k NTC thermistor @ 25 °C
- RF Frequency: ISM 868.0-868.6 MHz (Ramses II/III)
- Range: 30 m residential
- ErP Class: Class V (+3 %)
- Dimensions: 101 x 101 x 54 mm (WxHxD)
- Weight: 130 g
- Warranty: 2 years
Compatibility & Installation
Direct replacement for DT4R black thermostats or spare for evohome/HCC100 systems. Simple battery installation and automatic binding to existing receivers. Supports heat pumps, zoning, underfloor heating, and 24-230V on/off appliances.
