Sensor dispensing device

A sensor dispensing device ( 1 ) comprises a cartridge ( 2 ) having an outer casing ( 11 ) and a plurality of sensors ( 6 ) arranged one upon another in a stack. The cartridge has a first dispensing end ( 13 ) and a second opposing end ( 14 ) spaced a fixed distance apart, and the cartridge includes a first aperture ( 15 ) for the ejection of a sensor closest to the first end and a second aperture ( 16 ) opposed to the first aperture, for access by a pushing member ( 25 ). The first aperture and the second aperture are each provided with compliant sealing means ( 17 ) which are at least partly disposed outside the outer casing. The sealing means have first and second sealing surfaces which are capable of co-operating to releasably form a substantially moisture-tight seal when acted upon by suitable clamping forces. The device has a housing ( 34 ) for receiving the cartridge. For each of the compliant sealing means ( 17 ) there is a pair of clamping members ( 4, 33 ) for releasably clamping the sealing means to form a substantially moisture-tight seal. The device has a pushing member ( 25 ) for reversible insertion through the second aperture when the sealing means are not clamped, for pushing the sensor closest to the first end through the first aperture to a dispensed position.