When we buy new device such as Citizen CH-311B we often through away most of the documentation but the warranty.
Very often issues with Citizen CH-311B begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Blood Pressure Monitor Citizen CH-311B is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Blood Pressure Monitor on our side using links below.