Product description: 
Romsons Mercury Free Sphygmomanometer 

Salient features of Romsons Mercury Free Sphygmomanometer: 
Minimal scale: LCD/LED column 2mmHg 
Measure unit: mmHg 
Numerical display: I mm Hg 
Measure method: stethoscopy 
Measure scope: LCD/LED Column: 0-280mmHg. 
Numerical display: 0-300mm Hg. 
Pulse rate: 30-200/min, +/- 5%. 
Pressurization: manual by bulb. 
Depressurization: manual by air release valve.