---
product_id: 35400183
title: "SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert"
brand: "simplex"
price: "A$134"
currency: AUD
in_stock: true
category: "Simplex"
url: https://www.desertcart.com.au/products/35400183-simplex-4902-9721-speaker-25v-70-vrms-celing-true-alert
store_origin: AU
region: Australia
---

# Ceiling-mount design for seamless integration 25V / 70 VRMS power compatibility True Alert sound clarity for fire safety SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert

**Brand:** simplex
**Price:** A$134
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your fire safety game with crystal-clear alerts 🔊

## Quick Answers

- **What is this?** SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert by simplex
- **How much does it cost?** A$134 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/35400183-simplex-4902-9721-speaker-25v-70-vrms-celing-true-alert)

## Best For

- simplex enthusiasts

## Why This Product

- Trusted simplex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power-Optimized Audio:** Engineered for 25V / 70 VRMS systems ensuring reliable, clear sound in critical moments.
- • **Effortless Maintenance:** Lightweight 2-pound design with no batteries required, minimizing upkeep and maximizing uptime.
- • **Trusted Industry Leader:** From SIMPLEX, North America’s #1 fire safety equipment supplier, guaranteeing quality and reliability.
- • **True Alert Sound Precision:** Delivers unmistakable alert tones designed specifically for fire safety compliance and rapid response.
- • **Discreet Ceiling Installation:** Sleek white ceiling speaker blends effortlessly into professional environments without disruption.

## Overview

The SIMPLEX 4902-9721 is a professional-grade ceiling speaker designed for 25V / 70 VRMS public address systems, delivering True Alert sound clarity essential for fire safety. Lightweight and easy to install, it integrates seamlessly into commercial spaces, backed by SIMPLEX’s reputation as North America’s leading fire safety equipment supplier.

## Description

SPKR 25V/70VRMS WHT CEIL TRUEA

## Features

- SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert
- #1 Supplier for Fire Safety Equipment in North America. Our company is dedicated to help and supply your fire equipment needs with the best prices Worldwide.
- We have the most dedicated customer service team to help you with any question regarding our products and your orders.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EZ8VGWI |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #816,773 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #746 in Smoke Detectors & Fire Alarms |
| Customer Reviews | 5.0 5.0 out of 5 stars (2) |
| Date First Available | April 29, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2 pounds |
| Manufacturer | SIMPLEX |
| Package Dimensions | 8 x 8 x 4 inches |
| Part Number | S4902-9721 |
| UPC | 643485654339 |

## Product Details

- **Brand:** SIMPLEX
- **Color:** White
- **Control Method:** App
- **Mounting Type:** Wall Mount
- **Power Source:** Corded Electric

## Images

![SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert - Image 1](https://m.media-amazon.com/images/I/414b3DcQA2L.jpg)
![SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert - Image 2](https://m.media-amazon.com/images/I/416D1No-e7L.jpg)
![SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert - Image 3](https://m.media-amazon.com/images/I/41RTrP1fbnL.jpg)
![SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert - Image 4](https://m.media-amazon.com/images/I/51aecPZfp+L.jpg)
![SIMPLEX 4902-9721 Speaker 25V / 70 VRMS Celing True Alert - Image 5](https://m.media-amazon.com/images/I/51q5hkoL7iL.jpg)

---

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**Shop now:** [https://www.desertcart.com.au/products/35400183-simplex-4902-9721-speaker-25v-70-vrms-celing-true-alert](https://www.desertcart.com.au/products/35400183-simplex-4902-9721-speaker-25v-70-vrms-celing-true-alert)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-21*