Features:\n1.\tpressure range: 20-300mmhg pulse range: 30-160 hops/minute.\n2.\taccuracy: pressure:+/-5mmhg pulse: within +/-5%\n3.\tsaving 60 sets testing data\n4.\tbig screen to display big number for easy reading\nspecification:\n1.\tworking environment: temperature: 5℃-40℃ wet degree:<=80%rh\n2.\treserve & transport temperature: -20℃-55℃ wet degree: 10%rh—93%rh\n3.\tpower supply: dc 3v (aaa) 2pcs\n4.\tsize: l60mm*w63mm*h26mm\n5.\twrist length: 135mm-195mm\n6.\tweight:142g\n