Stanford Research SR400 Dual Channel Gated Photon Counter

The SR400 is a specialized photon counter with dual-channel capability and gated operation. It is tailored for applications in quantum optics, single-photon detection, and fluorescence lifetime measurements, where accurate counting and timing of photons are critical.

This unit is in good working condition and is tested to OEM critical specifications. Comes with a 30 day warranty, and we also offer a 7 day right of return (restocking fee may apply). We have been in business for over 25 years, our main focus is customer satisfaction by providing the highest quality of new or used test equipment. Please let us know if you have any questions.

We offer fast domestic and international shipping. We can ship on your FedEx, UPS, or DHL account upon request.  Lead time is typically 1-3 business days. Overseas customers, please consider duty’s and taxes before purchasing

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