A quality management system for products including a multiplicity of barcoded quality indicators, a barcode indicator reader and a product type responsive indication interpreter, each of the barcoded quality indicators including a first barcode including at least one first colorable area, the first barcode being machine-readable before exceedance of the at least one time and temperature threshold, at least a second barcode including at least one second colorable area, the second barcode not being machine-readable before exceedance of the at least one time and temperature threshold, a coloring agent located at a first location on the indicator and a coloring agent pathway operative to allow the coloring agent to move, from the first location to the first and second colorable areas simultaneously thereby causing the first barcode to become unreadable and at the same time causing the second barcode to become machine-readable.

A quality management system for products including a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, a barcode indicator reader operative to read the barcoded quality indicators and to provide output indications, the barcoded quality indicators being readable by the barcode indicator reader at all times after first becoming readable, including times prior to, during and immediately following exceedance of the at least one threshold by the at least one product quality affecting parameter, and a product type responsive indication interpreter operative to receive the output indications and to provide human sensible, product quality status outputs.

A quality management system for products including a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, a barcode indicator reader operative to read the barcoded quality indicators and to provide output indications, the barcoded quality indicators being readable by the barcode indicator reader at all times after first becoming readable, including times prior to, during and immediately following exceedance of the at least one threshold by the at least one product quality affecting parameter, and a product type responsive indication interpreter operative to receive the output indications and to provide human sensible, product quality status outputs.

A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, the barcoded indicator including a first barcode including a first plurality of barcode bars and at least a first colorable area, at least a second barcode including a second plurality of barcode bars and at least a second colorable area, and at least one interposed line extending between the first barcode and the second barcode, the interposed line being capable of preventing a barcode reader from reading parts of the first barcode and of the second barcode as part of a single barcode.

A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, the barcoded indicator including a first barcode including a first plurality of barcode bars and at least a first colorable area, at least a second barcode including a second plurality of barcode bars and at least a second colorable area, and at least one interposed line extending between the first barcode and the second barcode, the interposed line being capable of preventing a barcode reader from reading parts of the first barcode and of the second barcode as part of a single barcode.

A quality management system for products including a multiplicity of barcoded quality indicators, a barcode indicator reader and a product type responsive indication interpreter, each of the barcoded quality indicators including a first barcode including at least one first colorable area, the first barcode being machine-readable before exceedance of the at least one time and temperature threshold, at least a second barcode including at least one second colorable area, the second barcode not being machine-readable before exceedance of the at least one time and temperature threshold, a coloring agent located at a first location on the indicator and a coloring agent pathway operative to allow the coloring agent to move, from the first location to the first and second colorable areas simultaneously thereby causing the first barcode to become unreadable and at the same time causing the second barcode to become machine-readable.

An overvoltage protection with indication of exceeded operating temperature, where the overvoltage protection includes at least one protection element from the group of a two-pole protection component, a two-pole protection component complemented with a temperature dependent fuse, and/or a three-pole protection component. All protection components used in the given overvoltage protection is linked via a thermal link to the status indicator including a thermosensitive layer with irreversible change of color in case a temperature of the destructed protection members of the overvoltage protection is exceeded

An overvoltage protection with indication of exceeded operating temperature, where the overvoltage protection includes at least one protection element from the group of a two-pole protection component, a two-pole protection component complemented with a temperature dependent fuse, and/or a three-pole protection component. All protection components used in the given overvoltage protection is linked via a thermal link to the status indicator including a thermosensitive layer with irreversible change of color in case a temperature of the destructed protection members of the overvoltage protection is exceeded

A quality management system for products including a multiplicity of bar coded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, a barcode indicator reader operative to read the barcoded quality indicators and to provide output indications, the barcoded quality indicators being readable by the barcode indicator reader at all times after first becoming readable, including times prior to, during and immediately following exceedance of the at least one threshold by the at least one product quality affecting parameter, and a product type responsive indication interpreter operative to receive the output indications and to provide human sensible, product quality status outputs.

A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, the barcoded indicator including at least a first barcode and at least a second barcode, the at least a second barcode being in a second barcode unreadable state prior to exceedance of the at least one threshold and upon exceedance of the at least one threshold the at least a first barcode becoming unreadable and generally simultaneously the at least a second barcode becoming readable.