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Standford Research SR810鎖相放大器和SR830鎖相放大器以合理的成本提供高性能。 SR830同時顯示信號的幅度和相位，而SR810只顯示幅度。

兩種儀器都使用數字信號處理（DSP）來代替傳統鎖相中發現的解調器，輸出濾波器和放大器。

The SR810 Lock-In Amplifier and SR830 Lock-In Amplifier provide high performance at a reasonable cost. The SR830 simultaneously displays the magnitude and phase of a signal， while the SR810 displays magnitude only.

Both instruments use digital signal processing (DSP) to replace the demodulators， output filters， and amplifiers found in conventional lock-ins.

·1 mHz至102.4 kHz頻率范圍

·> 100 dB動態保留

·5ppm /℃的穩定性

·0.01度相位分辨率

·從10μs到30 ks的時間常數（高達24 dB / oct滾降）

·自動增益，相位，-reserve和-offset

·合成參考源

·GPIB和RS-232接口

• 1 mHz to 102.4 kHz range

• >100 dB dynamic reserve

• 5 ppm/°C stability

• 0.01 degree phase resolution

• Time constants from 10 μs to 30 ks(up to 24 dB/oct rolloff)

• Auto-gain， -phase， -reserve and -offset

• Reference source

• GPIB and RS-232 interfaces