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Chronothermostat Bticino Livinglight L4451

BTI L4451 8012199813738

Chronothermostat built-in (in any box 3 places) Bticino anthracite color. The chronothermostat connected to the boiler or air conditioner is used to program the switching on and off and also the desired temperature.

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  • Buy it with Express shipping within
    and receive it from Tuesday, 3 August
  • Buy it with Express shipping within
    and receive it from Thursday, 5 August
  • Buy it with Express shipping within
    and receive it from Tuesday, 3 August
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This chronothermostat is a built-in device that can be used for heating and air-conditioning systems; it allows, through various programming options, to adjust the temperature for every hour of the day and, in a differentiated manner, for every day of the week. It is possible to choose the use of a standard programme (already memorised but modifiable according to the user's needs) or to create a new one through a simple programming procedure.


  • Operating temperature: 5 - 35 °C
  • Power supply: 2 x LR6/AA 1.5V alkaline batteries
  • Minimum time between a programmed intervention and the next: 15 minutes
  • Settable temperature values: 3 - 40 °C (with minimum interval of 0.1 °C)
  • Accuracy of the controlled temperature: ± 0.5 °C
  • Battery life: not less than one year
  • Built-in installation
  • Output contact rating, voltage free: 5 (3) A
  • Possibility of connecting an external temperature probe with the following characteristics: R (25 °C) = 10k BETA = 3435 - max. connection length 5 metres
  • Possibility of remote reactivation of the chronothermostat by means of a remote control (e.g. telephone switchboard, telephone actuator, burglar alarm system, etc.).

Data sheet

Programmable thermostats
With the display
Main Commands

Specific References

Compatible products