 【Advanced Thermal Diode Sensor】Uses a sensitive thermal diode sensor and advanced signal processing microprocessor to accurately detect tiny refrigerant leaks without being affected by moisture. 【Adjustable 3 Levels Sensitivity】Provides 3 levels of sensitivity for selection, allowing for higher measurement accuracy in different detection environments. 【Environment Reset Function】Features an environment reset function that conveniently ignores ambient refrigerant concentration to easily track down higher-concentration leaks. 【Tricolor LED Indicators & Buzzer Alarm & Low Battery Alarm】Has visual and audible indicators for detecting leaks, as well as a low battery indicator. 【15.5" Flexible Probe&2 Power Supply Modes&Potable Toolbox】Features a15.5-inch flexible and rust-resistant probe, supports both battery and charging, and includes a portable tool case for easy storage and transportation.  Note: Refrigerant leak detectors are used to find very low level halogen refrigerant (cfc, hcfc, hfc) leaks. When the leak occurs in a closed room and the concentration of the leak is too high, do not use the leak detector, need to ventilate the closed space first. Refrigerant leak detectors cannot detect refrigeration systems that use refrigerants beyond halogens.   Operation Steps: 1. Place the tip of the leak detector probe as close as possible to the site of the suspected leak. Try to position the probe within 1/4 inch (6 mm) from the possible leak source. 2. Slowly move the probe past each possible leakage point. When the instrument detects a leak, the audible tone will alarm, and the visual indicators will be lit from left to right, Green LED then change to orange LED, and then to red LED(highest concentration) as increasing levels of alarm, indicating the location is closer to the leaking source. When the instrument signals a leakage, pull the probe away from the leak for a moment, then bring it back to pinpoint the location. 3. If the refrigerant leak is large, setting the sensitivity switch to LOW will make it easier to find the exact site ofthe leak. 4. Return the sensitivity switch to HIGH before searching for additional leaks. 5. When you have flnished checking, turn OFF the instrument and store it in a clean and dry place,protect the leak detector from possible damage.  Specification: Alarm Method: Sound and visual: Buzzer, Tricolor LED Indicator. Power Supply: AC power adapter and/or 4 AA sized (6V DC) Alkaline Batteries. Battery Life: Approximately 7 hours continuous normal usage. Auto power OFF: 10 minutes Disable Auto Power Off: Press and Hold "Hi" button and power button. Warm-Up Time: Approximately 45 seconds Operating Temperature & Humidity: 0~40 C,<80% RH Storage Temperature & Humidity: -10~60 C,<70% RH Altitude: <2000M (6500. ) Sensor Wand Length: 40cm (15.5 inches) Physical Dimension: 173 x 66 x 56 mm Weight: approximately 400g
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