CO2 Storage Safety 3 Alarm Horn Strobe LightsThe Remote CO2 Storage Safety 3 Alarm Horn Strobe Lights are designed to provide an additional flashing indicator of carbon dioxide leaks in large or noisy areas. The strobes work with theRemote CO2 Storage Safety 3 Alarm (RAD 0102 6 HS2) or the Oxygen Deficiency Depletion Safety Monitor (RAD 0002 ZR HS2) Features 100cd strobes clearly indicate an alarm situation prior to entry 110dB @ 1ft Easy and clean install, no additional wiring is required