gas leak detector 3 g yr sensitivity

{"cid":"91202080","title":"Electronic Air Conditioning AC Refrigerant Gas Leak Detector 7 Levels","imgUrl":"https:\/\/img.chinax.com\/nimg\/d1\/c9\/a29297d429796678a12fb0cd915d-200x200-1.jpg","attrs":{"Brand Name":"zell","Model Number":"ZH300","Delivery Time":"7 work days","Place of Origin":"China","Supply Ability":"200 unit per week","Packaging Details":"Paper box","Product name":"Leak Detector","SENSITIVITY LEVEL":"7 LEVELS","POWER SUPPLY":"2 C batteries","Warranty":"1 years","Type":"LEAK DETECTOR","Customized support":"OEM","RESPONSE TIME":"<3s","WARM-UP TIME":"3s","REFRIGERANT":"CFCs\/HCFCs\/HFCs\/HCs\/HFOs etc.","CERTIFICATION":"SAE-J1627\/SAE-J2791\/SAE-J2913\/EN14624:2012\/CE","SENSOR":"Corona","ALARM MODE":"LED","SIZE":"230mm*60mm*55mm"}}

{"cid":"91223371","title":"SMART-01B SF6 Leak Detector with Corona Detection Technology and 3 g\/yr Sensitivity for Portable Handheld Refrigerant Leak Testing","imgUrl":"https:\/\/img.chinax.com\/nimg\/da\/55\/e92b6f0659ba6262340e39a62547-200x200-1.jpg","attrs":{"Price":"$200-300","Brand Name":"KSTONE","Model Number":"SMART-01B","Minimum Order Quantity":"1","Delivery Time":"15 work days","Certification":"ISO9000","Place of Origin":"Shanghai","Payment Terms":"T\/T","Supply Ability":"1000 units per year","Packaging Details":"Carton\/ Wooden box","Detection Principle":"Corona","Sensor Type":"Negative Corona Sensor","Ultimate Sensitivity":"3 g\/yr","Preheating Time":"5 seconds"}}