Thermco’s Signal Tower Alarm System has been designed to operate in conjunction with the company’s gas mixers using stationary Thermco gas analyzers, and features digital displays to warn of out-of-spec gas mixtures.
Red light / green light
With Model 11185, if the gas mixture passes too high or low on the stationary Thermco gas analyzer containing digital displays, the normally green light on the Signal Tower Alarm System will flash red.
When the gas mixture returns to normal, the Signal Tower Alarm System light will automatically reset and the green light will be illuminated.
Models 11195 and 11200 feature a horn that sounds in addition to the flashing red light.