1. Infrared motion sensors
Infrared motion sensors are sensors that rely on the infrared radiation that the human body emits. When hands are brought under the sensor, the infrared rays that are emitted by the hands are detected by the infrared detectors. In some soap dispensers, radar-based infrared motion sensors are used. In these, there is a source that emits infrared radiation and its presence is detected by a sensor. If hands are brought under the sensor, the path of the rays is blocked and this change activates the valves and releases the soap.
2. Photosensors
Photosensors are sensors that can detect light. Soap dispensers that use this technology have a source that emits. When hands are brought in the path of the light, the light is reflected back. These reflected rays are detected by sensors and this change activates the pump and soap is dispensed.
3. Radar-based sensor
Radar-based sensors are those that can detect the presence of microwaves. Soap dispensers that use these sensors have a source emitting microwaves. The hands, when brought under the soap dispenser, reflect these microwaves and these reflected rays are detected by a sensor. This releases the soap.
There are a number of different materials used in soap dispensers. The most commonly used is stainless steel because they are unlikely to rust easily. Plastic soap dispensers are more cost-effective but are not as durable as stainless steel soap dispensers.
Given below are some of the popular soap dispenser products available in the market today.
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