Siemens OH121 SF 15/12 Minimizing current draw allows for

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

Like all Kidde Intelligent Optica Series detectors

A cover tamper feature indicates a trouble signal for a removed or improperly installed sensor cover

Provisions are included for disabling a maximum of three unused modules

Download 4098-5601 Installation Manual (PDF)

Siemens OH121 SF 15/12 Minimizing current draw allows forModel 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