HealthOMeter 549KL (Health O Meter) Electronic Pediatric Portable ScaleIdeal for hospitals, pediatric offices and infant home care, Healthometer Professional scales are designed to accommodate the youngest and smallest of patients. Our innovations compensate for a child"s movement, provide increased safety and comfort and lock in fast and easy weight readings.Load cell technology for improved accuracy and reliability Factory calibrated to assure accuracy; in-the-field calibration (requires 40 lb calibrated weight) Easy-to-read 0.6" LCD display reads in pounds or kilograms with the touch of a button Two-minute hold for reading after child is removed Easy-to-clean, removable sanitary tray Dual power source with 9V battery (included) Two minute auto-off prolongs battery life Convenient carrying case available (See optional 64769) 2 Year Limited Warranty