Check the listing for details. Elitech HVAC ILD-100H Refrigerant Leak Detector Heated Diode Sensor 0.1 oz/year. Condition: New. Listed at 139.99 USD. 10 Years Infrared Sensor Lifetime: Elitech independently developed the latest infrared sensor, greatly extending the sensor life up to 10 years; compared to traditional sensors, the results are also more accurate for all halogenated refrigerants. TFT Screen: First leak detector with a TFT screen that gives more clear and easy readings on sensitivities, leakage alerts, battery levels and other key info during operations. Higher Sensitivity: Adjustable sensitivity with High/Medium/Low levels and the maximum sensitivity is up to 0.1oz/yr. Quick Operation: The two corresponding buttons on the front allows quick adjustment to sensitivities or to mute buzzer directly, very easy to operate. Detecting All Halogenated Gases: It can detect all kinds of halogen refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs and mixed refrigerants such as R11/R22/R404a/R410a/R600a/R1234yf and Blends such as AZ-50, HP62, MP39 etc. and response within 1s. We offer 7*24 services and a one-year warranty for the gas leak detector. Technical Details Brand ‎Elitech Power Source ‎Battery Powered Product Dimensions ‎1.5"D x 3.3"W x 7.9"H Item Weight ‎2.9 Pounds Alarm ‎Audible Operating Humidity ‎85 percent Upper Temperature Rating ‎20 Degrees Celsius Sensor Type ‎IR Manufacturer ‎Elitech Model ‎ILD-100H Item Weight ‎2.87 pounds Item model number ‎ILD-100H Batteries ‎1 Lithium Metal batteries required. (included) Is Discontinued By Manufacturer ‎No