Superconducting nanowire single-photon detection system from ID Quantique for quantum optics, quantum communication and fluorescence lifetime work. The ID281 closed-cycle cryogenic platform holds 4 to 16 channels, upgradeable in 4-channel steps, with detection efficiency up to the 90% class at telecom wavelengths, dark counts of a few per second and timing jitter in the tens of picoseconds. The ID1000 time controller is available. Petrano Supply Inc. is an authorized reseller in Canada of the ID281.