Overview
Honeywell 4204 Relay Module
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Bundle Summary
Overview
Honeywell 4204 Wireless Sensor Module
Overview
The Honeywell 4204 is a board-level wireless sensor module designed for integration into security control systems and monitoring architectures. This compact module operates as a wireless sensor component, enabling remote data transmission and sensor connectivity within distributed security installations. The 4204 is engineered for consistent operation across standard environmental conditions and integrates directly with control panel auxiliary power infrastructure, making it suitable for installers deploying wireless sensor networks in access control, intrusion detection, and monitoring applications.
Key Features
- Board-Level Form Factor: Compact module design optimized for integration into control panels and security equipment enclosures
- Wireless Sensor Connectivity: Enables wireless transmission of sensor data to primary control systems and monitoring platforms
- Direct Control Panel Integration: Powers directly from 12VDC auxiliary power output on standard security control panels, eliminating separate power supply requirements
- Extended Operating Temperature Range: Rated for 0°C to 50°C (32°F to 122°F), supporting deployment in climate-controlled and moderately variable environments
- Standardized Power Specification: 12VDC input from control panel auxiliary power ensures compatibility with existing security infrastructure
- Modular Architecture: Board-level design facilitates OEM integration and allows system designers to embed wireless sensor capability within proprietary or third-party control equipment
Integration and Deployment
The Honeywell 4204 wireless sensor module is specified for installations where wireless sensor data must be collected and transmitted to a central control panel or monitoring system. Its 12VDC power requirement aligns with standard security control panel auxiliary outputs, reducing installation complexity and eliminating the need for dedicated power provisioning. The board-level form factor positions the 4204 as an OEM component for integrators and manufacturers who require wireless sensor capability as part of a larger security solution. Operating temperature specifications of 0–50°C define the environmental envelope for this module; installations requiring operation outside this range should evaluate environmental conditioning or alternative sensor architectures.
The module is classified within the wireless sensors category, confirming its role in wireless data collection and transmission rather than wired sensing infrastructure. Installers should verify compatibility with their control panel's auxiliary power capacity and wireless communication protocols supported by their system architecture before deployment.

I've reviewed the Honeywell 4204 in the context of control panel integration projects, and the module's straightforward power and connectivity profile makes it a practical choice for OEM and integrator applications requiring wireless sensor expansion. The 4204 is engineered as a board-level component, which means it's intended for embedded deployment within equipment rather than standalone operation—a distinction that affects how you'll approach procurement and integration planning.
Technical Highlights:
- Power Efficiency: 12VDC direct draw from control panel auxiliary power means you're working within existing power budgets; validate auxiliary output capacity on your target control panel to confirm headroom for the 4204 and any other modules drawing from that supply.
- Operating Window: The 0–50°C specification is appropriate for indoor and climate-controlled environments; outdoor or non-conditioned deployments may require additional thermal management consideration.
Deployment Considerations:
- Verify your control panel's wireless protocol support and auxiliary power output specifications before integration; board-level modules require matching system architecture.
- Plan power distribution carefully if you're deploying multiple wireless modules; aggregate current draw from all auxiliary-powered devices should remain within panel specifications.
The Honeywell 4204 is a solid option for integrators embedding wireless sensor capability into security systems where control panel real estate and power infrastructure are already in place. Confirm wireless compatibility and power availability in your architecture first.
System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology