Measuring Devices -Temperature Relay Module Highlights Generic Brand Temperature Relay Module Description: Using high quality HR202 humidity sensor Comparator outputs directly drive relays, or other devices connected to 220V AC Adjust temperature distribution position detection threshold Sensor interface can be installed pin, plus humidity sensor with wires Circuit board dimensions as: Approx. 5x2.6cm / 1.97x1.02 inch, thickness: approx. 1.9cm / 0.75inch, has four 3mm bolt holes for easy installation Specification: Material: Printed circuit board Power supply voltage: 5VDC (default 5V hair current: over 150mA Max load: 250V 10A AC or 30V 10A DC, this power can be used by a small Module to use: 1. The humidity sensor most sensitive to ambient humidity, generally used to detect ambient humidity 2. When the module is in ambient humidity exceeds the set threshold, the relay, often starting with a common terminal connected, when the ambient humidity is lower than the set threshold, the relay off, the common terminal and the normally closed terminal connected 3. Common, normally open , normally closed three ports is equivalent to a dual control switch, the power of the relay coil, often starting with common terminal conduction, when there is no electricity, the common terminal conduction and normally closed The package Include: 1 Piece Humidity Switch Relay Module