Siemens OH121 SF 15/12 In these applications

In these applications

Minimizing current draw allows for a greater number of appliances on the NAC and fewer power supplies

Provisions are included for disabling a maximum of three unused modules

and can also monitor listed alarm-causing shorting devices

Siemens OH121 SF 15/12 In these applicationsModel OH121 from Siemens Industry Fire Safety is a photo thermal smoke detector that contains a thermal sensor. When the sensor is utilized, an Alarm condition will trigger when the temperature reaches 135F at this point, the detector will also lock into Alarm condition. The magnet test feature allows for Model OH121 to be tested without the use of a heat gun, providing quick testing for installers and test personnel to prove the integrity of the