Abstract: A dust extractor having an autostart functionality that includes: a motor and a fan to generate an air flow; an electric outlet connectable to a power tool; a control system; a user interface; and a current measuring unit to measure electric current of the outlet, wherein the control system is arranged to: measure a first representative current value of the electric outlet, associate the first representative current value with a first state of the power tool based on a first user input received via the user interface, determine a first threshold value from the first representative current value associated with the first state of the power tool, measure the electric current of the outlet, compare the measured electric current with the threshold value, and control the suction air flow of the dust extractor based on a result of the comparison.

Abstract: A dust extractor device that includes: a fan for causing an air flow, a motor to rotate the fan, a dust separator to separate dust particles from the air flow, a flow measuring unit for measuring air flow rate of the air flow, and a control unit configured to adjust electric power of the motor based on the measured air flow rate.

Abstract: A dust extractor having an autostart functionality that includes: a motor and a fan to generate an air flow; a dust separator to separate dust particles from the air flow; an electric outlet connectable to a power tool; a control system; a user interface; and a current measuring unit to measure electric current of the outlet, wherein the control system is arranged to: measure a first representative current value of the electric outlet, associate the first representative current value with a first state of the power tool based on a first user input received via the user interface, determine a first threshold value from the first representative current value associated with the first state of the power tool, measure the electric current of the outlet, compare the measured the electric current with the threshold value, and control the suction air flow of the dust extractor based on a result of the comparison.

Abstract: A dust extractor device that includes: a fan for causing an air flow, a motor to rotate the fan, a dust separator to separate dust particles from the air flow, a flow measuring unit for measuring air flow rate of the air flow, and a control unit configured to adjust electric power of the motor based on the measured air flow rate.

Abstract: A trigger apparatus for a powered device, such as a power tool is disclosed. The powered device comprises a trigger operable by a user to move from a first position to at least one second position so as to control an operation of the powered device. The trigger apparatus comprises: a linear Hall effect sensor for measuring a change in a magnetic field associated with the trigger being moved from the first position to the at least one second position, and configured to generate a sensor signal based on the measured magnetic field, for controlling the operation of the powered device; a power module configured to power, the linear Hall effect sensor, upon reception of an activation signal for indicating that the trigger apparatus is to be activated; and an activation switch configured to generate the activation signal, when the trigger is moved from the first position. A powered device comprising the trigger apparatus and a method of controlling an operation of a powered device are also disclosed.