Ul: 2166

❌ (CE-only or uncertified) may violate building codes and insurance requirements.

: This verifies that the hardware—including valves, nozzles, and cylinders—can withstand the high pressure of a rapid discharge without failure. ul 2166

If a gas detector doesn’t have UL 2166, it hasn’t been tested for electrical safety or accurate sensing. ❌ (CE-only or uncertified) may violate building codes