The Simplex 4901-9858 TrueAlert Electronic Mini Horn is a compact, audible-only notification appliance in a red housing designed for use on 24VDC NAC (Notification Appliance Circuit) fire alarm systems. The small form factor makes the 4901-9858 ideal for installations where space is limited or a low-profile horn is preferred.
The 4901-9858 produces a loud, penetrating audible tone suitable for general occupancy evacuation signaling. It operates on standard 24VDC regulated or filtered NAC power and is compatible with a wide range of Simplex and third-party fire alarm control panels with supervised NAC outputs.
- Type: Electronic mini horn, audible only (no strobe)
- Housing color: Red (white version is 4901-9859)
- Voltage: 24VDC
- Circuit type: NAC (Notification Appliance Circuit)
- Brand family: Simplex TrueAlert
- Application: Fire alarm audible notification in commercial and light industrial occupancies
- Profile: Compact / mini form factor
The Simplex 4901-9858 is a genuine TrueAlert notification appliance for supervised NAC installations requiring reliable audible-only coverage.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | .1 lbs |
|---|---|
| Dimensions | 4.5 × 2.75 × 1.25 in |
| Condition | New |
| Color | Red |
| Part Type | Horn Strobe |
| Manufacturers | Simplex |
| Compatible Panels | 4100ES, 4020, 4010, 4008, 4100U |
| Cross Reference | 4901-9859 (white version) |
| Type | Electronic mini horn, Color: Red, Voltage: 24VDC, Circuit: NAC, Function: Audible only, Family: TrueAlert |
