IMPORTANT NOTE:This product DOES NOT include tritium vial. Please refer to our Tritium Primer to learn more about tritium and where to purchase it.
The versatile TEC-S323 Isotope Fob is designed around the use of a glass tritium vial (not included), which will glow continuously for many years without the need to charge it from sunlight o
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Wish there was something other than rubber plug to keep it in