Yes. If you already have CCTV pointed at your machines, you likely don't need to add sensors to get machine-stop alerts or production counts. The camera is already looking at the thing you want to monitor. What's missing isn't hardware on the machine, it's software that watches the video feed and tells you what it sees - a line stopped, a cycle completed, a shift's output so far. That software runs against your existing DVR or NVR feed. No new wiring to the machine, no new box bolted onto the panel, no electrician on site for a day.

This matters because the usual answer to "how do I get visibility into my shop floor" has been to retrofit sensors - proximity switches, PLC taps, IoT counters wired into each machine. That works, but it's a project. Someone has to spec the sensor for each machine type, run wiring, integrate it with whatever control system is there, and keep it calibrated. For a plant with ten or twenty machines of different ages and makes, that's real time and real cost before you see a single alert.

Why the camera is usually enough

A camera doesn't care what kind of machine it's looking at. It doesn't need a signal from the PLC, a shaft encoder, or an electrical tap. It just needs line of sight. If your CCTV already covers the machine - which it probably does, because most plants installed cameras for security or supervision, not for this - then the data you need is already arriving at your DVR every second. The question becomes what you do with that video, not how you get a new signal out of the machine.

That's a different kind of problem. Instead of an installation job per machine, it's a configuration job per camera: point the system at the existing feed, tell it which part of the frame is the machine or the counting point, and let it start flagging stops and counting cycles. No sensor to order, no downtime on the machine while someone wires it up, no new maintenance item for your electrical team to track five years from now.

Where a retrofit still wins

There are real cases where a sensor retrofit is the right call. If a machine is tucked away with no camera coverage, you need a camera before you need anything else, and sometimes a direct sensor tap is cheaper than repositioning CCTV. If you need something a camera genuinely can't see - internal pressure, temperature, vibration inside a bearing - no amount of video analysis replaces an actual sensor reading that value. And if your cameras are old analog units with poor resolution or frame rate, video-based monitoring is only as good as the picture, so a sensor might be more reliable there too.

But for the specific thing most plant managers ask for first - knowing the moment a machine stops, and knowing how many pieces came off a line this shift - camera-based monitoring covers it without touching the machine at all.

What changes for you, practically

If you go the sensor route: you're looking at hardware cost per machine, installation labour, possible downtime while it's fitted, and someone on your team (or a vendor) who understands the wiring well enough to troubleshoot it six months later.

If you go the camera route: you're looking at a one-time setup against your existing DVR feed, done without stopping the machine, and alerts on WhatsApp once it's live. The ongoing cost is a subscription, not a maintenance line item for sensor wiring.

For a steel plant we monitor, the cameras were already up for security reasons, pointed at the rolling line. The gap wasn't visibility, it was that nobody was watching the feed in real time and turning it into a number anyone downstream could use. Once the video feed was connected to stop-detection and counting, the plant started getting a WhatsApp message the moment a line stopped, instead of finding out at the next walk-through or at shift handover.

The practical test

Before you plan a sensor retrofit, walk your floor and check: is there already a camera with a clean view of the machine or line you want to monitor? If yes, you're very likely looking at a software setup, not an installation project. If no, that's the one machine where you weigh a camera against a sensor, not the whole plant.

Most small manufacturing units have more camera coverage than they're using. The fastest way to get stop alerts and output counts usually isn't to add anything. It's to point software at what's already on the wall.