Announcing the first product sold under the Boston Electronics name. The Chop-In Opus 1™ is an affordable, digital, dual-phase lock-in amplifier and phase-locked chopper combination. The lock-in amplifier and chopper system is available for virtually the price of a chopper alone. The Chop-In provides digital dual-phase lock-in amplifier functionality up to 5 kHz. It is USB powered; no additional power is needed. Included is a compact chopper assembly with 3-inch diameter disk, and control software.
For more information see the Chop-In page.