Q: What is tritium?
Tritium is a heavy form (isotope) of hydrogen and for this reason behaves chemically exactly like it. Pure tritium therefore, forms a gas T2 (like hydrogen forms H2). However, tritium is not stable but decays to the inert gas helium with a half life of 12.3 years. This means that after this time, half of any amount of tritium will have become helium. This transformation process is called a pure beta-decay. In this process, no gamma radiation occurs and only a low energy electron is emitted.

Q: What are the risks of using this technology in a traser H3-watch?
None. The low energy electrons of tritium can’t escape the glass body of a mb-microtec GTLS. Only the rupture of a GTLS would free the tritium gas and it would quickly disburse. A typical traser H3 watch contains anywhere from 15 to 20 sources for a total of no more than 25 millicuries. Now, lets assume that in a closed, unventilated room all the sources of 40 such watches (also 1000 millicuries or 600 to 800 individual sources ) would simultaneously burst open and release their tritium gas, the resulting exposure to a person in that room would still be only about 50% of the yearly, random background exposure that every living creature on earth is exposed to. This example, as unlikely as it may seem, serves well to illustrate the scientific facts about this technology and further demonstrates the safe nature of this product.

Q: Comparing GTLS and Super-LumiNova
If the luminous markings on a watch are reasonably sized and arranged, the readability in the dark is primarily determined by their total light emitted. In order to assess their relative merits, the light intensity of two dials with identical markings, one with mb-microtec GTLS and another with Super Lumi-Nova were compared and measured. The results, with the light intensity expressed in the unit “nano candela” (ncd) are given below.

Duration time in darkness 0 5 mins. 1 hour 8 hour
GTLS 6000 6000 6000 6000
LumiNova bis 10000 6000 400 30

The radio luminescent light of the GTLS light source remains constant while the purely phosphorescent light of the Super LumiNova may initially be brighter but diminishes within minutes and becomes progressively less luminous.

The conclusions are obvious:

GTLS light source guarantees safe, unfailing and unlimited readability in darkness whereas Super-LumiNova has a very limited capability.