The 712 Geiger Muller tube is used in a wide array of radiation monitors.

The 713 Geiger Muller tube is used in a wide array of radiation monitors.

The 714 Geiger Muller tube is used in usually high measuring dose rate monitors.

The 716 Geiger Muller tube is used in very high reading dose rate monitors.

A 9V PP3 type battery.

An AA type battery, 1.5v.

A AAA type battery, 1.5v.

A C type battery, 1.5v.

A D type battery, 1.5v.

The gamma alarm board is a spare part for the gamma alarm 500B.

The meter movement is a common component requiring replacement during repair of radiation monitors.

The 3000uSv/hr meter movement is a common component requiring replacement during repair of radiation monitors.

The ND1000s meter movement is a common component requiring replacement during repair of radiation monitors.