Material: Engineering Plastics Item Type: Blood Pressure Size: 126mm(L)*100mm(W)*53mm(H) Application: ARM Blood Pressure: 20-280mmHg Pulse Rate: 40-165 times/min Memory Capacity: 60 Group of measurement data Weight: 500g Power: AAA Batteries*4(not include) it can use AC power Pressurization: Automatic Pressurization Mode Place: China(Mainland) is_customized: Yes