Beurer GL44/GL50 blood glucose test strips are one of the components of a diabetes monitoring system. Specifically designed for using with GL44 and GL50 blood glucose monitoring systems. Supplied in fresh sealed containers, which once opened can be stored for up to 90 days, or until the expiry date. Specially designed to detect under filling, therefore you will only obtain measurement readings should a sufficient sample of blood be provided. Should be stored at a temperature range of +4C to +40C and humidity of 10% to 85%.