These thermosensitive modules are made of safe materials, have stable performance, and are used to detect trigger relay modules. workmanship, with adjustable potentiometer to temperature detection. It can be widely used in temperature detection, sensor, etc. Features - - Material: Electronics. - Size: 3.20X1.40X1.00cm/ 1.26X0.55X0.39inch. - Working voltage 3.3V-5V. - Driving ability: more than 15mA. - Photosensitive resistance most to temperature, commonly used to detect trigger relay module. - With adjustable and practical potentiometer to temperature detection - Fixed bolt holes for easy installation, save your time and effort in a large extent - The DO output can be directly driven our relay module, which can form a temperature-operated - Used for temperature detection, sensor, intelligent module and so on Package list: 10 x thermosensitive Relay Modules