DETECTO?s apex© eye-level digital physician scales feature inline mechanical height rods An extra-wide flat platform measuring 17 in W x 17 in D x 2.75 in H 600 lb x 0.2 lb / 300 kg x 0.1 kg capacity 0.75-inch-high clinical-blue LCD weight readouts BMI calculation AC or battery power (AC adapter included on some models) 2 RS232 serial ports and 1 micro USB-B port HL7 IEEE 11073 compliance Wi-Fi and Welch Allyn connectivity (available on some models) Dual wheels for transport Sturdy column construction Integral bubble level Assembles quickly right out of the box in just a few easy seconds (no tools required)