BST eltromat International offers various digital sensors that scan the web touch-free by registering contrasts in light.
The BST eltromat CCD CAM 100 sensor is especially suitable for the digital scanning of print lines, print edges, or web edges, and for the web center-line guiding and web width measuring.
As it's mains-powered that means you'll end up with a black power lead on display, and will need a plug socket near by.
We weren't hugely keen on the cord, but we'd rather that than for the camera run out of battery when away on holiday.
The BT Smart Home Cam 100 has been keeping watch on our house for the last couple of weeks.
Is it something worth investing in given how many options are out there, or is it just another gadget with an accompanying app to add to the ever-growing list?
Some are small, some large, some stick to your walls and others are designed to become part of your home décor.
It isn't packed full of features such as doubling as a night light, or offering the means to speak through it to those in your house, but it gives you what you need for basic monitoring, including notifications.
There are motion sensors on board and you can choose from five motion trigger sizes ranging from extra small to extra large through the app.
We had our camera set to large for the majority of the time as we found the smaller sizes pushed too many notifications through and affected the battery life on our smartphone.
If you want to know every time your dog moves when you are at work, for example, then the small setting works a treat.