The ECHO image intensifiers are the high-performance commercial image intensifiers by Photonis. ECHO tubes are available in two high performance grades in both green and white phosphor offering the best option for any user. With a high Figure of Merit (FOM) and fast Auto-Gating, ECHO commercial grade tubes serve many night vision applications for users that require the extra range and details at night. ECHO 18 mm format is compatible with BNVD-15, PVS-14, or MUM-14 type devices. Options with the ONYX is the optional black and white night vision.