Simplex 4903-9196 TrueAlert Non-Addressable Speaker Strobe 02//02 The four normally-open relays are

The four normally-open relays are controlled directly from Fire- Works

Model: MTH-15-115-R-WP

Supervised microwave and PIR u Anti-masking with spray detect u Motion monitor

this unit ensures clear alerts in both noisy and low-light environments

Simplex 4903-9196 TrueAlert Non-Addressable Speaker Strobe 02//02 The four normally-open relays areTrueAlert non addressable speaker visible (S V) notification appliances combine a multi tapped speaker and a high intensity strobe to provide audio tone notification and visible notification from the same appliance. Speakers and strobes are wired separately. The speaker is multi tapped with taps available for either 25 VRMS or 70. 7 VRMS and the strobe is selectable for either free run or synchronized operation.