Professional Refrigerant Leak Detector High Sensitivity HVAC Tool Adjustable Settings LED LCD Display Compatible with R2

Specifications Type ZL77A Battery Version ZL77B Charging Version GL77A Battery Version GL77B Charging Version Detectable gas types CFCs R11 R12 R500 R503HCFCs R22 R123 R124 R502HFCs R134a R404a R125Measurement range 0 1000PPMResolution 1PPMSensitivity R12 R22 R134a 0 5 ounces per year 14 grams year Warm up time 30 secondsResponse time 10 secondsSampling method Diffusion typePower source 2 x No 7 batteries or lithium batteryRuntime Approximately 6 hoursDisplay LED LCD with dual color backlightReading outputs Sensor reading battery level concentration unit temperatureAlarm functions Low high alarm settings sound alerts red screen backlightAudio prompt Higher frequency buzz indicates higher gas concentrationOperating temperature range 10°C to 50°CFeatures 1 Multi Gas probe Efficiently detects various refrigerant gases including CFCs HCFCs and HFCs making it compatible with R22 R134a R410a and more for diversified HVAC needs 2 High Sensitivity Analysis Precise probe with a sensitivity of 0 5 ounces year ensures reliable identification of even minimal refrigerant leaks 3 Real Time Alerts Dual color LED backlight and audible alarms provide immediate feedback enabling quick and accurate leak assessment 4 User Friendly LCD Display Clear readings of gas concentration temperature and battery level offer smooth operation in different scenarios 5 Long Battery Life Designed to run for up to six hours continuously ensuring dependable