Skip to product information
1 of 2

Simplex

Simplex 565-925 4098-9756 4-Wire Duct Smoke Detector Replacement PC (NEW IN BOX)

Simplex 565-925 4098-9756 4-Wire Duct Smoke Detector Replacement PC (NEW IN BOX)

Regular price $49.46 USD
Regular price Sale price $49.46 USD
Sale Sold out
Shipping calculated at checkout.

Condition: New

Quantity

Low stock: 1 left

Storewide Quantity discount: Save 5% on 2 items, 8% on 3 items, and 10% on 4+ items (applies automatically at checkout).

You will be prompted to create an account or sign in to complete your purchase.

Buy on eBay

As an eBay Partner, we may be compensated if you make a purchase.

Simplex 565-925 4098-9756 4-Wire Duct Smoke Detector Replacement PC. This high-performance replacement printed circuit board ensures reliable life-safety monitoring for your existing HVAC duct detection systems. - 4-wire configuration - Direct replacement design - Industrial-grade circuitry - New in box condition - Integrated fire detection compatibility

This replacement component is precision-engineered to restore full functionality to your duct smoke detection hardware, offering a seamless upgrade over aging or malfunctioning control boards. Unlike generic aftermarket alternatives, this unit maintains strict adherence to the operational standards required for critical facility fire alarm systems, ensuring consistent sensitivity and rapid response times within ventilation ducts.

Advanced Detection Circuitry

Built with robust internal components, this 4-wire replacement board provides superior signal stability compared to legacy models, effectively reducing false alarms while maintaining high-sensitivity air monitoring. Its design optimizes the electrical path for faster processing of smoke detection signals, providing a dependable interface that integrates perfectly with established fire safety infrastructures. The unit features high-durability solder points and heat-resistant board architecture to handle the demanding environments of commercial HVAC ductwork, ensuring long-term operational integrity and compliance with rigorous life-safety performance benchmarks.

This item description was generated using artificial intelligence and may contain errors. Specifications and compatibility should always be verified using official manufacturer documentation and, where applicable, by a qualified or licensed fire alarm technician.

View full details

About us

We specialize in new, used, and surplus fire alarm and life-safety equipment. Our inventory includes control panels, modules, power supplies, annunciators, detectors, and related accessories from leading manufacturers. Listings reflect current, in-stock availability and are updated regularly. Orders ship quickly and are packed with care.

For additional details, please review our Terms of Service, Shipping Policy and Refund Policy before placing your order. Please contact us with any questions.