A new universal dual-channel power and energy meter is built to measure lasers and other optical sources. The portable MPE-2500 interfaces with thermopile, pyroelectric, semiconductor, and temperature probes and features a digital readout, analog bar, and dynamic graphs on a high-resolution backlit LCD screen. The device also features a backlit keypad for use in dark environments. Interfaces include an SD card slot for logging stability data and a USB interface for remote virtual instrumentation via LabVIEW on Windows, Mac, and Linux. Users can choose from 55 probes operating in a variety of modes. Probe options include 36 thermopile models, including a 600-W air-cooled version, and 15 pyroelectric probes featuring 12, 25, 50, 75, and 100 mm diameter receptors with various absorption coatings. Semiconductor probes for UV, visible, and near IR applications are also available. Accessories include diffusers for high peak power lasers and fiber-optic adapters. Additional features include a dual battery option for remote operation up to 24 continuous hours, simultaneous measurement of average power and individual pulse energy, and ambient temperature tracking. The device typically arrives from stock within 48 of order placement.