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One Style B/D (Class A/B) Initiating Device Circuit For Monitoring N/O Contact Devices
Model OP921 is UL 268 7th edition listed incorporating advanced built-in ISOtechnologyTM - True Class-X SLC operation (use is optional)
Conventional 4-wire smoke detectors can be monitored for alarm and trouble conditions The SK-MINIMON can be mounted in a single gang junction box directly behind the monitored device
The net effect is response speed greater than five times that of other designs
No electronics or fire alarm devices included
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