Measurement range: Blood pressure 0 to 300 mm Hg Measuring arm circumference: 22~35cm Accuracy: Blood pressure ±0.4kpa (±3mmHg) Pulse reading is ±5% Operating temperature: 10℃~40℃ Pressurization and decompression type: manual mechanical type Minimum scale: 2mmhg Material: Aluminum alloy, PVC nylon strap with D ring, 48*14 or 51*14cm latex bag, 22*12cm leather bag Armband length: 51*13.7cm Color box size: 17.3*10.6*6.4cm Product weight: 318/ PCS (including color box) Outer box size: 54X36X38 CM Packing quantity: 50PCS/ box Weight: 16.5KG/ box