Wattmeter Posted on 27th December 20151st May 2021 by ThePD (The Project Definition) Wattmeter is a device for measuring power in watts of any given circuit. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Engineering and tagged device, electrical. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.