2 aa batteries rebounded tonometer

{"cid":"91150510","title":"USB And WiFi Portable Hardness Tester RHL-100 With 1.5V AA Batteries","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/c1\/cb\/afc42001c082edeb8606586705df-200x200-1.jpg","attrs":{"Brand Name":"Huatec","Model Number":"RHL-100","Minimum Order Quantity":"1 set","Delivery Time":"3~7 working days","Certification":"ISO CE GOST","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union,Paypal","Supply Ability":"500 sets one month","Packaging Details":"Packed in high quality cartons","Product name":"Portable Hardness Tester","Model":"RHL-100","Interface":"USB, WiFi","Power supply":"2 x 1.5V AA batteries","Display":"Large, bright touch-screen LCD display","Hardness scales":"HRC, HRB, HV, HB, HS"}}

{"cid":"90037963","title":"SADT High Accuracy Portable Leeb Hardness Tester For Professional Use","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d9\/73\/11923c5a4bc201479c3f6c6e5d38-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"SADT","Model Number":"hartip 3000","Minimum Order Quantity":"1","Delivery Time":"Within 3 days after receiving payment","Place of Origin":"china","Certification":"ce iso sgs","Packaging Details":"carrying case with carton","Payment Terms":"Western Union, T\/T, PAYPAL","Supply Ability":"1000pc\/month","Impact direction":"Auto Impact Direction","keyword":"Portable Metal Hardness Tester","Language":"English","Display":"LCD","Material":"Aluminum Alloy Ect 12 Metal Material","type":"Handheld","for":"Wide Range Of Industrial Applications","Accuracy":"+\/-2 HLD"}}