How to Choose the Right Saluki Lock-in Amplifier? |
This page summarizes our full range of digital lock-in amplifiers, including key specifications, model comparisons and official datasheet downloads.
These instruments deliver ultra-high sensitivity for weak signal detection in spectroscopy, quantum research and industrial testing.

| Key Technical Features: |
| • Frequency range covers DC to 800MHz |
| • Noise as low as 2.5nV |
| • Standard virtual oscilloscope and multiple demodulators |
| • Includes PID control and FFT spectrum analysis |
| • Modular, compact size adaptable to different application scenarios |
| • 1 to 10 channels optional, suitable for different testing needs |
♦ Product Specifications:
| Model | Type | Freq. Range | Dynamic | Time constants | Sensitivity | Resource |
|---|---|---|---|---|---|---|
| SE1201 | Compact size | 50 mHz to 120 kHz | >120 dB | 1us to 3ks | 1 nV to 1 V | Datasheet |
| SE1022 | Single-channel | DC to 102 kHz | >120 dB | 10 μs to 3 ks | 1 nV to 1 V | Datasheet |
| SE1022D | Dual-channel | DC to 102 kHz | >120 dB | 10 μs to 3 ks | 1 nV to 1 V | Datasheet |
| SE2011 | Single-channel | DC to 250 kHz | >130 dB | 100 ns to 3 ks | 1 nV to 5 V | Datasheet |
| SE2012 | Dual-channel | DC to 250 kHz | >130 dB | 100 ns to 3 ks | 1 nV to 5 V | Datasheet |
| SE2021 | Single-channel | DC to 1.5 MHz | >130 dB | 100 ns to 3 ks | 1 nV to 5 V | Datasheet |
| SE2022 | Dual-channel | DC to 1.5 MHz | >130 dB | 100 ns to 3 ks | 1 nV to 5 V | Datasheet |
| SE2031 | Single-channel | DC to 10 MHz | >120 dB | 100 ns to 3 ks | 1 nV to 2 V | Datasheet |
| SE2041 | Single-channel | DC to 80 MHz | >120 dB | 100 ns to 3 ks | 1 nV to 2 V | Datasheet |
| SE2052 | Dual-channel | DC to 400 MHz | >120 dB | 25ns to 4.4 ks | 1 nV to 2 V | Datasheet |
| SE1300 | Modular | DC to 1 MHz | >130 dB | 1us to 3ks | 1 nV to 5 V | Datasheet |
| SE1354 | 3 to 8 channels | DC to 100/500kHz/1MHz | >130 dB | 1us to 3ks | 1 nV to 5 V | Datasheet |
♦ Explanation:
• Saluki’s SE1022, SE2011, and SE2021 are general-purpose, high-precision, low-noise input models designed for scientific research.
• Saluki’s SE1022D, SE2012, and SE2022 are dual-channel input models featuring dual-channel high-precision, low-noise signal detection and dual-channel.
• Additionally, the compact SE1201 and the modular SE1300 and SE1354 models are available to meet the requirements of various application scenarios.
• The aforementioned series are classified as low-to-medium frequency lock-in amplifiers, whereas the SE2031, SE2041, and SE2052 (dual-channel) are medium-to-high frequency models, capable of operating at frequencies up to 400 MHz.
• When measuring lower frequencies—such as 2 kHz—it is advisable to select a low-frequency lock-in amplifier to achieve a higher signal-to-noise ratio.
♦ Typical Applications:
| • Optical Experiments | • Biomedical Applications |
| • Sensing and Measurement | • Electrochemical Measurement |
| • Scanning Microscopy | • Impedance Measurement |
| • Materials Science |
♦ FAQ:
1. Definition and Core Functions of Lock-In Amplifiers.
2. Key Performance Parameters of Lock-In Amplifiers Explained.
3. Common Noise Categories in Electronic Measurement System.
4. Core Advantages of Digital Over Traditional Analog Lock-In Amplifiers.
5. Signal Input Mode Selection and Noise Suppression Solutions.
6. USB Connection Setup Guide for Lock-In Amplifiers on Windows.
7. Typical Application Fields and Use Cases of Lock-In Amplifiers.
8. Parameter Configuration for Fast-Changing Amplitude Signal Measurements.
9. Feasibility of Non-Sinusoidal Periodic Signal Detection With Lock-In Amplifiers.
10. Applicable Scenarios for Reference-Free Lock-In Measurement.
11. Selection Principles for Internal vs. External Reference Modes.
12. Weak DC Signal Detection Solutions for AC-Only Lock-In Amplifiers.
13. Measurable Parameters and Information Extraction of Lock-In Amplifiers.
♦ Need technical support or a custom solution? Contact our application engineers: saluki@salukitec.com.
♦ To request a quotation, please contact sales@salukitec.com or click “Contact Us“ to leave a message.
♦ Related Products
1. SE3001 Optical Chopper

| Module | Frequency | Description | Resource |
| SE3001 | 1 Hz to 10 kHz | Standard blade needs to be purchased separately. | Datasheet |
2. SE4102 Dual Current Preamplifier

| Module | Frequency | Description | Resource |
| SE4102 | DC-50MHz | 2 channels, Dual Current Preamplifier | Datasheet |
3. SE4002 FET Input Preamplifier

| Module | Frequency | Description | Resource |
| SE4002 | 10 MΩ input impedance | FET Input Preamplifier | Datasheet |
♦ Need technical support or a custom solution? Contact our application engineers: saluki@salukitec.com.
♦ To request a quotation, please contact sales@salukitec.com or click “Contact Us” to leave a message.

