The Simplex 4906-9127 is a TrueAlert multi-candela audible/visible notification appliance combining an electronic horn with a high-output xenon strobe in a red wall-mount housing. The 4906-9127 operates on SmartSync two-wire notification appliance circuits, allowing horn and strobe control to be managed independently on the same wire pair — on-until-silenced and on-until-reset operation are both supported without additional conductors.
Strobe intensity is field-selectable at 15, 30, 75, or 110 candela using a jumper at the rear of the housing, with a visible yellow flag indicator confirming the selected output. This reduces job-site inventory requirements when candela levels aren't finalized until inspection. The 4906-9127 horn produces a harmonically rich 24 VDC output compatible with Temporal Pattern or 60 BPM March Time activation.
- Selectable strobe intensity: 15, 30, 75, or 110 candela
- SmartSync two-wire NAC — horn and strobe independently controlled
- Red housing, white FIRE lettering, clear lens
- Wall mount, single or double gang box or 4 in. square box
- UL Listed to Standards 1971 (strobe) and 464 (horn)
- ADA compliant operation
The 4906-9127 requires a compatible SmartSync NAC from the connected panel or a 4905-9938 SmartSync Control Module for Class B operation. Verify NAC output type at the panel before specifying — non-SmartSync NACs will not provide synchronized strobe operation.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | .50 lbs |
|---|---|
| Dimensions | 5.5 × 5.5 × 5.5 in |
| Condition | New |
| Part Type | Fire Alarm, Horn Strobe, Multi-Candela, Strobes |
| Manufacturers | Simplex |
| Compatible Panels | 4100ES, 4010ES, 4008, 4010, 4100U, 4020, 4100, 4120 |
| Cross Reference | 4906-9129 (White wall), 4906-9128 (Red ceiling), 4906-9130 (White ceiling) |
| Type | Horn strobe, audible/visible, Color: Red, Mount: Wall, Voltage: 24 VDC, Candela: 15/30/75/110 selectable, Protocol: SmartSync two-wire NAC, Standards: UL 1971, UL 464, ADA: Yes |






