Photocell amplifiers OA 721 · 722 · 823 · 727 · 9214 · 9810
11-pin plug-in amplifiers with relay or transistor output, versions with automatic gain control, on/off delay or two channels, and compact terminal-block amplifiers.
Licensed distributor
Photocells & amplifiers
T.J.C. Teknik ApS, based in Virum near Copenhagen, Denmark, makes photocell systems: plug-in and terminal-block amplifiers, thru-beam emitters and receivers, proximity sensors for separate amplifiers, and mounting accessories. Its sensors work with all of its amplifiers.
Pick a range below to see its products. Each product page lists the type numbers to order and links to the TJC Teknik data sheet.



11-pin plug-in amplifiers with relay or transistor output, versions with automatic gain control, on/off delay or two channels, and compact terminal-block amplifiers.
Thru-beam emitters and receivers for separate amplifiers, with ranges of 5, 15 and 30 m, in Ø10 mm or M12 stainless steel housings, with cable or M12 connector.
Diffuse proximity sensors for separate amplifiers, from 60 mm range for shiny materials up to 2.5 m for wall mounting.
Mounting blocks and reflectors for TJC Teknik photocells.
Open the full TJC Teknik catalogue to filter by product group, safety rating, housing width, supply voltage and more, or search by part number.
Cookies on hirotronix.com Essential cookies keep the site and your quote list working. With your permission, we also use analytics cookies (Google Analytics and Microsoft Clarity) to see how the site is used so we can improve it. You can change your choice at any time. Cookie policy