Safety light curtains use an array of photoelectric beams to sense intrusion into a plane of detection, offering protection where a process may require open and frequent access. Type 4 / Category 4 curtains achieve high fault tolerance through redundancy/monitoring, have a tighter field-of-view and are therefore less susceptible to optical short circuits.
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Would you buy this item again? Undecided
Here is the reason for the review. We broke one of the receivers, which is totally our fault. Someone grabbed and turned the plug and busted the pins in the end cap. As is the case with safety items, the manufacturer will not just sell you a new end cap. It must be sent in for repair, so that's fine. (Review update from Patrick on 3/16/21) My issue here is that returning to (the manufacturer) for repair has been nothing short of a PITA, from getting an RMA even through to today, some 2 months later (the RMA states 10 days). The item was shipped to them on 1/28/21. Today is 3/16.21. I've had no contact. I will say that Automation Direct has stepped in to assist me and I am getting my updates directly from them. Automation Direct has always been very responsive, and we use them here for a plethora of items with never any issues and tech support has been great, and the pricing is very competitive. That said, the next time I need light guards, I will be looking harder to see what other vendors have to offer. Competitive pricing cannot outweigh reliability, of a product or a manufacturer. Kudos to Automation Direct for stepping in to assist. I got a call from them this morning letting me know that my items are back in the US (why it needed to go to Italy for a new end cap is beyond me), and I am supposed to receive an email from the vendor shortly to confirm the repair cost.2 of 2 people found this review helpful.