This semiconductor refrigerant leak detector features a heated diode sensor that triggers an alarm the moment leaking refrigerant contacts it, so you can quickly identify leaks. The 14.6-inch flexible probe helps you access hard-to-reach areas with ease. It detects all halogen refrigerants, including CFC, HCFC, HFC, HC, and HFO types such as R12, R22, R134a, R290, and R1234yf, and three adjustable sensitivity levels offer precision up to 0.1 oz/yr. Visual indicator lights keep readings clear at a glance: green means normal operation, red signals a detected leak, and yellow indicates a fault. You can also customize how you're alerted, with four alarm options including light, vibration, buzzer, and detect tone. Lighting is well covered too, with a built-in LED for general illumination, a small light on the probe for working in tight spaces, and a UV light that helps detect leaks when using a fluorescent agent. Recharging is easy with the included power adapter or a USB Type-C cable, and a full charge gives you up to 15 hours of runtime. When it's time to go, the compact storage case makes transportation simple while keeping the detector protected.