The Watts Vision BT-D03 RF Wireless Digital Thermostat is a battery-powered, radio-frequency (RF) digital room thermostat designed for individual room temperature control within a heating and/or cooling system.
It is a key component of the Watts Vision Wireless system, which is a smart home solution for managing heating, cooling, and electrical appliances.
Key Features and Capabilities
Wireless Communication: It operates using an 868 MHz radio frequency signal with bidirectional communication, offering flexibility in placement as no wiring is required to the boiler or receiver (it uses 2x AAA batteries for power).
System Compatibility: It is specifically designed to be compatible with the Watts Vision ecosystem. When associated with a Central Unit (like the BT-CT03-RF), it enables smartphone app control for remote operation.
Display and Control: It features a back-light LCD display and is operated using three sensitive touch buttons.
Temperature Control: It uses internal temperature sensors for control and also has the option to connect an external sensor (e.g., a floor sensor) if required.
Operating Modes: The thermostat offers several temperature modes, including:
Comfort
Reduced (often used for night or economy settings)
Anti-freeze
Off
Advanced Features:
Open Window Detection: It can detect a rapid drop in temperature and temporarily stop heating to save energy.
Regulation: It offers configurable regulation types: Hysteresis (simple on/off with a set differential) or Proportional Band (PWM), for more precise control.
Locking: It includes a Pin Code function for use in public areas to prevent tampering.
Mounting: It is versatile and can be used as a wall-mounted unit or placed on a surface using the included desk stand.
In essence, the BT-D03 RF is a versatile, battery-operated digital thermostat that provides precise, localised temperature control and integrates seamlessly into the Watts Vision® smart heating and cooling network.
Power Supply: 2 x AAA LR03 1.5V Alkaline batteries (typical life of approximately 2 years).
Operating Temperature: 0-40c.
Temperature Range:
Comfort / Reduced: 5-37c.
Anti-freeze: 0.5-10c.
Temperature Accuracy: 0.1c.
Sensing Element: Internal and/or optional external sensor.
IP Rating: IP30.
Dimensions (Approximate):
Length / Width: 83.5mm.
Depth: 16mm
Mounting Options: Wall or Desk mounting (stand included).
Memory: EEPROM (non-volatile memory, so settings are retained when batteries are changed).
Replaces obsolete BT D02 RF
One thermostat required per room
