The UEi Agent1 RLD15 refrigerant detector's digital leak-size indicator provides information beyond simple detection to include approximate leak size. The Agent1 uses a heated sensor to generate an electrical signal in the presence of the target gas. The Agent1's sensor provides approximately 300 hours of service life, and also activates a visual flashing LED when refrigerants are detected. With three sensitivity levels -- high, norm and low -- the Agent1 can either complete quick passes or precision pinpointing to troubleshoot detection.