gold karat tester with warranty

{"cid":"91223501","title":"New Gold Karat Tester Purity Density Gold Karat Tester","imgUrl":"https:\/\/img.chinax.com\/nimg\/1e\/b2\/4193fbe47b05613e9e495071a84a-200x200-1.jpg","attrs":{"Brand Name":"LONROY","Model Number":"MDJ-300K","Minimum Order Quantity":"1","Place of Origin":"Guangdong, China","Weighing range":"0.01-300g, 0.01-600g, 0.01-1200g, 0.005-300g, 0.005-600g","Density readability":"0.001 g\/cm3","Purity resolution":"0.1%, 0.01%","Density range":"> 1, < 1","Measuring platform material":"ABS integrated injection molding","Measurement principle":"Archimedes' principle of buoyancy","Measurement time":"about 5 seconds","Measuring tank dimensions":"15.3cm long \u00d7 10.7cm wide \u00d7 8.0cm high","Measuring tank material":"PC material","Data interface":"Standard RS-232 interface","Measurement types":"Gold, platinum, silver, palladium, irregular shapes","Displayed results":"Density, volume, purity %, K number","Parameter settings":"Water temperature, solution medium density, density limits","Calibration method":"Single key calibration, automatic detection","Measurement medium":"Water or alcohol"}}

{"cid":"91120860","title":"Digital Gold Purity Test Meter And Metal Density Meter Precision 0.005 CE Certificate","imgUrl":"https:\/\/img.chinax.com\/nimg\/4d\/f6\/ba794d3462521688f87b10c34e6b-200x200-1.jpg","attrs":{"Brand Name":"LIYI","Minimum Order Quantity":"1","Delivery Time":"10 days after receiving the deposit","Certification":"CE","Place of Origin":"China","Packaging Details":"Wooden case","readability":"0.001g\/m\u00b3","scope":"0.001 - 99.999g\/m\u00b3","Measuring table":"ABS injection moulding","Result display":"Density, volume","power":"AC100V~240V 50HZ\/60HZ \uff08European standard plug\uff09","Weight and dimension":"4.5kg\/42.5 cm*17.5*32.5cm"}}

{"cid":"91197455","title":"KEY3000 New Portable Gold Tester XRF Gold Testing Machine High Precious Metal Analyzer Purity Density Testing Assay Mach","imgUrl":"https:\/\/img.chinax.com\/nimg\/37\/1a\/3c3662f8c41552d949042e6998a2-200x200-1.jpg","attrs":{"Price":"USD 7900","Brand Name":"IRIS","Minimum Order Quantity":"1","Delivery Time":"15","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"10PC 1DAY"}}