Abstract: An environmental controller arranged to control an environmental control system and a method of setting the operational configuration of such an environmental controller are described. The method comprises: displaying a user query from a series of user queries on a display of a user interface on the environmental controller, receiving in response to the at least one user query, a user input at the user interface, the user input relating to at least one of the one or more appliances intended to be controlled by the environmental controller, determining an expected connection configuration for physical connection terminals on the environmental controller based on the user input, and then detecting by the controller connections at the plurality of physical connection terminals; and validating the user input by comparing the detected connections to the physical connection terminals with the expected connection configuration.

Abstract: A battery-powered environmental control and/or sensor device is disclosed. The device includes a mounting plate arranged to be affixed to a support surface; and a main body including a battery compartment. The main body is adapted to be releasably secured to the mounting plate, with the battery compartment being substantially inaccessible when the main body is secured to the mounting plate. The mounting plate and main body comprise complementary securing elements arranged to secure the main body to the mounting plate. The mounting plate or the main body include a lever having a portion extending beyond a periphery of the device so as to be operable by a device user when the main body is secured to the mounting plate. The lever is operable when activated to disengage the complementary securing elements and separate the main body from the mounting plate to provide access to the battery compartment.

Abstract: An environmental controller arranged to control an environmental control system and a method of setting the operational configuration of such an environmental controller are described. The method comprises: displaying a user query from a series of user queries on a display of a user interface on the environmental controller, receiving in response to the at least one user query, a user input at the user interface, the user input relating to at least one of the one or more appliances intended to be controlled by the environmental controller, determining an expected connection configuration for physical connection terminals on the environmental controller based on the user input, and then detecting by the controller connections at the plurality of physical connection terminals; and validating the user input by comparing the detected connections to the physical connection terminals with the expected connection configuration.

Abstract: A battery-powered environmental control and/or sensor device is disclosed. The device includes a mounting plate arranged to be affixed to a support surface; and a main body including a battery compartment. The main body is adapted to be releasably secured to the mounting plate, with the battery compartment being substantially inaccessible when the main body is secured to the mounting plate. The mounting plate and main body comprise complementary securing elements arranged to secure the main body to the mounting plate. The mounting plate or the main body include a lever having a portion extending beyond a periphery of the device so as to be operable by a device user when the main body is secured to the mounting plate. The lever is operable when activated to disengage the complementary securing elements and separate the main body from the mounting plate to provide access to the battery compartment.