This RING Contact Sensor is an essential accessory for your Ring Alarm system. It is a white coloured contact sensor that is designed to work with Amazon Alexa. The sensor is lightweight with a weight of 67 grams and has dimensions of 82 x 25 x 24 mm (H x W x D). The sensor is powered by a long-lasting battery, ensuring that you don't have to replace it frequently. The device is equipped with Z-Wave connectivity and is compatible with the Ring app. The box includes a Ring Contact Sensor along with an alarm, and it comes with a manufacturer's guarantee of 2 years.
Works well, better with the smaller contact magnets because they are less bulky. Some packs come with both large & small magnets but I bought more small magnets at extra cost.
Good product, well manufactured and easy to install. Could perhaps be a bit slimmer and perhaps also include packing pieces to suit different situations.