SIGNAL RECOVERY is part of AMETEK Advanced Measurement Technology, and designs, manufactures and sells lock-in amplifiers, signal averagers, amplifiers, light choppers, signal multiplexers, and specialized counters.
Amplifier
7270 General Purpose DSP Lock-in Amplifier
computer control via Ethernet and USB, in addition to front-panel control
7230A General Purpose DSP Lock-in Amplifier
dual reference & harmonic detection and a low profile design for integration with larger systems
5113A Low Noise Voltage Preamplifier
a high performance, low noise voltage preamplifier with continuously adjustable gain and selectable high, low and bandpass filtering
5402A Low Noise Current Amplifier
a low noise current input preamplifier designed for use whenever the signal source is a current source