The invention features compact apparatuses useful in electrosurgery. The compact apparatuses have a housing having a cavity, an electrosurgical system located within the cavity, the electrosurgical system having optionally a monopolar output system, optionally a bipolar output system, optionally an argon plasma coagulation output system, a processor located within the cavity, the processor operatively coupled to each output system of the electrosurgical system to control outputs generated by each output system, optionally a high frequency generator located within the cavity and operatively coupled to the processor and a gas canister holder and control system located within the cavity of the housing for receiving a gas canister within the cavity of the housing.
