{"product_id":"exosens-4g-image-intensifier-tube","title":"Exosens 4G Image Intensifier Tube","description":"\u003cp\u003eExosens 4G (formerly Photonis) is a high-performance image intensifier tube designed to provide excellent image quality and detection range in demanding low-light conditions.\u003c\/p\u003e\u003cp\u003ePositioned above ECHO and ECHO+ and below 4G+, 4G is the established mid-tier performance option in the current Exosens range. It combines fast auto-gating with an extended spectral response. P45 white tubes are available to order with a minimum Figure of Merit (FOM) of 1800 or 2000; select your preferred option above.\u003c\/p\u003e\u003cp\u003eExosens 5G sits at the top of the range and is available only by enquiry to approved military and government customers.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMinimum FOM: 1800 or 2000, according to the selected P45 white option\u003c\/li\u003e\n\n\u003cli\u003eMinimum signal-to-noise ratio: 28\u003c\/li\u003e\n\u003cli\u003eMinimum centre resolution: 64 lp\/mm\u003c\/li\u003e\n\u003cli\u003eHigh-light resolution: 55 lp\/mm\u003c\/li\u003e\n\u003cli\u003eFast auto-gating\u003c\/li\u003e\n\u003cli\u003eExtended spectral response\u003c\/li\u003e\n\u003cli\u003eP43 green or P45 white phosphor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eManufacturer brochure\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.exosens.com\/system\/files\/2026-06\/Exosens%20NV_Leaflet%204G_VD_0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload the current Exosens 4G product brochure (PDF)\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eThe brochure describes the 4G range rather than an individual tube. Please contact us before ordering if you require a particular specification beyond your selected minimum FOM.\u003c\/p\u003e\u003ch3\u003eChoosing the correct tube\u003c\/h3\u003e\u003cp\u003eThis product uses the 18 mm 10160-style, three-contact EGAC tube format. Please check the product images and compatibility with your device. Contact Deep Dark before ordering if you are unsure whether this version is suitable.\u003c\/p\u003e\u003ch3\u003eTube format and gain control\u003c\/h3\u003e\u003cp\u003eThis is an 18 mm 10160-style tube with three contact pads. The centre contact provides external gain control through a 180 kΩ EGAC circuit when used in a compatible three-contact device.\u003c\/p\u003e\u003cp\u003eIt can also be installed in a compatible standard two-contact device. In that configuration, the centre contact remains unconnected and the tube operates without user-adjustable manual gain, using its automatic brightness-control functions.\u003c\/p\u003e\u003cp\u003ePlease contact Deep Dark with your device manufacturer and model if you are unsure about compatibility.\u003c\/p\u003e\u003ch3\u003eOrdering and delivery\u003c\/h3\u003e\u003cp\u003eP45 white versions may be purchased online for delivery to approved countries. P43 green versions with minimum FOM 1800 or 2000 are available by enquiry only; please contact Deep Dark for availability and pricing. All orders remain subject to product availability and applicable destination, end-use and export-control checks. We may contact you for additional information before dispatch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAvailability and lead time:\u003c\/strong\u003e In-stock P45 tubes are dispatched on our normal schedule. If a P45 tube is not currently in stock, it remains available to order with a lead time of up to four weeks. We will confirm the expected dispatch date after your order. P43 remains enquiry-only.\u003c\/p\u003e","brand":"Exosens","offers":[{"title":"18 mm 10160-style — 3-contact EGAC \/ Green - P43 — enquiry only","offer_id":8764763209775,"sku":"","price":4475.0,"currency_code":"GBP","in_stock":false},{"title":"18 mm 10160-style — 3-contact EGAC \/ White - P45 — minimum FOM 1800","offer_id":8764775039023,"sku":"","price":4554.0,"currency_code":"GBP","in_stock":true},{"title":"18 mm 10160-style — 3-contact EGAC \/ White - P45 — minimum FOM 2000","offer_id":57411126395260,"sku":null,"price":4950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/3019\/2174\/files\/Image_20intensifier_20tube_204G_0.jpg?v=1788592658","url":"https:\/\/deep-dark.co.uk\/products\/exosens-4g-image-intensifier-tube","provider":"Deep Dark","version":"1.0","type":"link"}