Detect All Refrigerants Freon leak detector can detect all halogen refrigerants,including CFCS (R12, R11, R500, R503), HCFCs (R22, R123, R124, R502), HFCs (R134a, R410a, R404a, R125),detect other mixtures AZ-50, HP62, MP39, etc.It detects refrigerant leakage in air conditioning and refrigeration systems,detect ethylene oxide gas leak in medical equipment,detect SF-6 in high-voltage circuit breakers,detect cleaning agents for dry cleaning equipment,detect halon gas leakage in fire extinguishers. Adjustable 6 Levels (32X) Sensitivity The leak detector hvac provides a 32-fold sensitivity increase from 1 to 6 levels. Sensitivity can be adjusted with the sensitivity button, doubling or halving each press. The higher the sensitivity, the faster the sound frequency. Adjust to the required sensitivity according to the detection environment, the measurement accuracy of the halogen gas leak detector hvac will be higher. Sound and Light Dual Alarm When the gas is detected, the red indicator of freon leak detector will light up and the refrigerant leak detector hvac will emit a buzzing warning. The higher the concentration of leaking gas, the more red lights will be on, and the sound frequency of the alarm will be faster. Environment Reset Function After pressing "reset" button, freon leak detector will automatically set to ignore the refrigerant concentration on probe sensor, and will only alarm when the refrigerant concentration is higher than the current environment. This feature helps you efficiently track down higher-concentration leaks. (Note:The device automatically turns on the environment reset function by default when starting up. It is recommended to start up in fresh air without refrigerant leakage).. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 2.5573622392 pounds, Manufacturer: KAISAL