With metal proximity sensors metallic objects are detected even with the sensor coming into contact with the object. This is why a lot of industries have invested in these products. Here's a good read about mercury tiltswitch, check it out! Depending on your needs you need to pick the best sensor and this is not easy most of the time especially when you don't know what you should be looking for. For starters, you need to think about the sensing distance. This is the distance between the item that has to be sensed and the sensor. Because of temperature concerns you need the sensor to be far from the sensing object. If it comes too close the sensor will fail and you will have to pay for maintenance of the same. In addition, you need to consider the nature of the material being sensed. To gather more awesome ideas on mercury switches, click here to get started. Non-metallic objects cannot be sensed using a metal proximity sensor. You need to make sure the object matches the sensor in question. Some materials will give you a hard time when it comes to sensing if the distance is long. In such a cause, a stainless steel sensing technology will be a good option. These sensors usually pick almost all materials within the sensing distance which is a good thing. Another aspect you need to keep in mind when making the purchase is the mounting space you have. You cannot just put the sensors in the open and be moving them around however you see fit. In mounting the sensors you need to think about switching frequencies, electrical protection, and even the sensing distances. This not only protects the sensor and increases its lifetime but also ensures accuracy in the process. Remember that the distance between the sensor and the object will affect the results you get and even the performance of the sensor which is why this aspect cannot be ignored when making a decision. In addition, you need to consider whether the sensor is shielded or not. If they are unshielded the sensing distance will sense longer distances which improves accuracy. However, the shielded ones will allow flush mounting. Thus, it is up to you to determine what you need the most depending on your objects for getting the sensor. The amount of money you will be spending on the product should also guide you. Make sure you have a budget and stick to it lest you waste all the business savings in making this purchase. Kindly visit this website https://www.quora.com/How-do-proximity-sensors-work for more useful reference.