Let’s just say you need to know how much power a certain device is using. You can do that with this new product from Belkin. Conserve Insight, available for pre-order on Amazon for $29.99, was designed to help consumers conserve energy. The energy monitor shows you how much a device costs in watts, dollars, and carbon dioxide using preloaded or custom rate information. Belkin also has three other Conserve gadgets available for pre-order should you have the need: Smart AV, Valet, and Socket.