Infrared Forehead Thermometer (Non-Contact Specifications Model: ARCN53 Battery Voltage: DC3.0 Weight: 95 Measuring Range: 34.0 C — 42. Accuracy: 34.0 C - 42.9 C, ± 0. Measuring Distance: 1 - 3 c Measuring Time: 2 second Memory Log: up to 50 sets of dat Auto Off: 18 second CE and FDA Approve Takes 2 AAA Batteries (included Features Tri-Colored backlights in Body Temperature Mod Normal: 34.0 C - 37.3 C - Green Ligh Low Grade fever: 37.4 C - 38.0 C - Yellow Ligh High fever: 38.1 C ~ 42.9 C - Red Ligh ----21885mbb----