Feature:1. This air conditioning leak detector can detect all halogen refrigerants. So you don't have to worry about its applicability in daily life. With it, you will make your life more convenient.2. This halogen detector has sensitive manual adjusting function. It is convenient to use. You can just touch it with your fingertips to easily check if there is a problem with the air conditioner.3. This electronic leak detector has a welldesigned and exquisite circuit. Its portable design with suitcase will also protect the leak detector during daily use.4. This refrigeration leak detector has an excellent sensor to detect subtle leak halogen gases. Its flexible long handle can detect leak source at any place.5. This leak detection tool has a sound and light alarming indicator. It can better remind you to prevent inconvenient use. So you can improve your work and life efficiency.Specification:Item Title: Refrigeration Gas Leak DetectorMaterial: PlasticBattery Model: 3A x 4 (Battery not included)Function:Air Conditioner Leak DetectorRefrigerant DetectorHalogen Leak DetectorAutomobile Air-Conditioning Leak DetectorRefrigerant Inspection and Maintenance.Package List:1 x Tester 1 x Instruction Manual 1 x Handbag