I just got a tritium vial for my fob and it's very cool. I ordered a green 3x 22.5mm vial from mixglo.com and it fits the TEC vial kit nicely. The tritium vial is brighter than the strontium capsule unless its been recently exposed to bright light. FYI--it's legal to buy the tritium vials, just illegal for US companies to sell them.
BarryI went through Merkava. That mixglo website kinda gave me fits. Prices end up about the same either way you go. Excited to see how this turns out. The fobs as they came are awesome enough.
RainReignI couldn't decide between Merkava and mixglo, just chose one randomly. Mixglo shipped immediately and the quality of the vial looks great--I'm sure Merkava will be the same. I need to pick up some clear silicone tonight, so I can build my fob.
richardYou need the pellet kit. The standard glow pellet that comes with the fob has 1/4" outside diameter, the tritium vials are 3mm in diameter (approximately 1/8" dia). The pellet kit has a clear tube that is 1/4" outside diameter and 1/8" inside diameter