[SNO] 21 [PROJECT NAME] 
Energy Leak Detector: This circuit is primarily used to detect draughts around doors and windows which cause energy leaks. This circuit is essentially a temperature sensor and can be used where sensitive temperature detection is needed. It makes use of a comparator and detects the slight changes in temperature by comparing it to room temperature (ambient temperature). A couple of LED’s (RED and GREEN) are used to indicate the change in temperature whether it is above or below the room temperature.