Beurer PO 45 Pulse Oximeter Paramedic Uniforms Operating Condition: 10°C to 40°C Operating Condition: 10°C to 40°C (50°F to 104°F) Zinc alloy chest piece skiing and sports flying) Symbol display for unsteady measurements Easy to read colour display Colour display with 7 display formats Adjustable display brightness Graphic pulse display Battery change indicator Automatic switch off Including strap and belt pouch Medical device Includes 2 x AAA batteries Product measurements: 59 x 33 x 34mm Product weight: approx the heart rate (pulse rate) and the perfusion index (PI) Very simple and completely painless measurement Small and light for at home and on the go Particularly suitable for people with: heart failure