Signal Recovery have released the model 7270 Dual-Phase DSP Lock-In Amplifier. The model 7270 sets a new standard for general-purpose DSP lock-in amplifiers. Signal Recovery have taken advantage of the developments in technology since the first DSP lock-in amplifiers were introduced in the early 1990’s to update the core design, but made sure that they've included all the best features of their model 7265 and 7280 instruments. The result is a lock-in amplifier of outstanding performance that is easy to use and suitable for all measurements over a frequency range extending from 1 mHz to 250 kHz.