Microwave heating systems for industrial uses, notably for food and farm goods have been extensively developed. Microwave energy is now being used in many ways, with greater focus on consumption. If utilized for a consumer product as a power source, microwaves are typically employed in a totally shielded enclosure that does not allow access while the microwave source is running. The radio frequency (RF) leakage above 5mW (+ 10 dBm) is dangerous to humans, according to the World Health Organization (WHO) guideline. This manuscript focuses on the low cost hand held device for detection of microwave energy radiation because it is very hazardous for human body. This kind of device will be very helpful for clean and green society.