Model Number	Product Name
051-196	Cs-137 Check Source 1.0 uCi
051-166	Check Source Holder
051-197	Cs-137 0.25 uCi Check Source with Stick on Holder
051-198	Cs-137 1.0 uCi Check Source with Stick on Holder
101-103	Cs-137 10 uCi Disc Check Source, Uncalibrated