Product SKU: RFUN
Product Overview
The Bosch RADION RFUN Wireless Universal Transmitter combines an integrated magnetic reed switch with a configurable supervised dry contact input for monitoring doors, windows and compatible external alarm devices. Operating on the Bosch RADION wireless platform, it can be used as a standalone wireless opening contact or connected to a normally open or normally closed detector. The transmitter also monitors low battery, cover tamper and removal from the mounting surface where supported by the connected system. Powered by one replaceable CR123A lithium battery with a typical life of up to five years, the RFUN provides a flexible wireless interface for compatible Bosch intrusion alarm installations.
Key Capabilities
Integrated Reed Switch
Provides built-in magnetic contact monitoring for compatible doors, windows and other opening points.
Universal Dry Contact Input
Accepts a supervised external detector using a normally open or normally closed dry contact configuration.
Wireless Device Supervision
Supports RF supervision and low-battery reporting through compatible Bosch RADION equipment.
Dual Tamper Protection
Includes cover tamper and wall-removal tamper monitoring for improved device security.
Up to Five-Year Battery Life
Uses one user-replaceable CR123A lithium battery for low-maintenance wireless operation.
Flexible Indoor Monitoring
Suitable for doors, windows and compatible third-party detectors across residential and commercial alarm systems.
Best For
- Doors and Windows: Use the integrated reed switch for wireless monitoring of opening points.
- External Alarm Devices: Connect a compatible detector with a normally open or normally closed dry contact output.
- Wireless Alarm Upgrades: Add compatible wired devices to a RADION system without running alarm cable back to the panel.
- Commercial Premises: Suitable for offices, shops, warehouses and restricted rooms requiring supervised wireless monitoring.
- Residential Security: Provides flexible wireless protection for entry doors, windows and selected auxiliary alarm devices.
Why Choose the RFUN
Choose the Bosch RFUN when a compatible RADION alarm system needs a versatile wireless transmitter rather than a basic magnetic contact. Its integrated reed switch can monitor a door or window directly, while the supervised dry contact input allows a compatible external detector to be connected to the same type of wireless platform. Cover and wall tamper switches help identify interference with the transmitter, and RF supervision supports ongoing communication monitoring through compatible equipment. The replaceable CR123A battery provides a typical operating life of up to five years. Security Wholesalers supplies the RFUN for professional Bosch wireless alarm installations.
Buyer Decision Tips
Buyer Tip: Confirm that the alarm panel is connected to a compatible Bosch RADION receiver operating on the required regional frequency.
Buyer Tip: Use the integrated reed switch for a door or window, or connect one compatible external normally open or normally closed dry contact device.
Installation Note: The external loop must be wired with the specified supervision resistors and configured correctly for reliable alarm and tamper monitoring.
Key Features & Technical Specifications
| Product Type | Wireless universal transmitter with magnetic contact and supervised loop input. |
| Model | RFUN. |
| Manufacturer Part Number | F.01U.383.352. |
| Brand | Bosch. |
| Product Range | RADION wireless. |
| Primary Applications | Monitoring doors, windows and compatible external dry contact devices. |
| Integrated Sensor | Magnetic reed switch contact. |
| External Alarm Input | 1 supervised alarm loop input. |
| Supported Contact Types | Normally open or normally closed dry contact devices. |
| Loop Supervision | End-of-line resistor supervision as specified in the installation instructions. |
| Wireless Frequency | 433.42MHz for the RFUN regional model. |
| Wireless Supervision | Supports RF check-in supervision and low-battery reporting through compatible equipment. |
| Cover Tamper | Supported. |
| Wall Tamper | Removal-from-mounting-surface tamper protection supported. |
| Battery Type | 1 × CR123A 3V lithium battery. |
| Typical Battery Life | Up to five years under typical operating conditions. |
| Transmitter Dimensions | Approximately 33.02mm × 82.55mm × 19.5mm. |
| Magnet Dimensions | Approximately 18.5mm × 24.5mm × 12.5mm. |
| Functional Temperature Range | -10°C to 49°C. |
| EN 50130-5 Class II Temperature Range | -10°C to 40°C. |
| Relative Humidity | Up to 93% non-condensing. |
| Environmental Class | EN 50130-5 Class II. |
| Installation Environment | Indoor use. |
| Receiver Requirement | Compatible Bosch RADION wireless receiver. |
| Programming Requirement | Must be enrolled and configured through a compatible Bosch alarm control system. |
| Included Components | Wireless transmitter, magnetic contact components, CR123A lithium battery and installation documentation. |
| Items Not Included | Alarm panel, RADION receiver, external detector, additional cabling and monitoring service are supplied separately. |
Ideal Use Cases
Entry Doors
Use the integrated reed switch to report opening and closing through a compatible wireless alarm system.
Windows
Provides supervised wireless opening detection without running alarm cable back to the control panel.
Roller Doors and Gates
Connect an appropriate external dry contact sensor where the integrated magnet arrangement is unsuitable.
Equipment Cabinets
Monitor cabinet doors or connect a compatible external alarm output for supervised wireless reporting.
Third-Party Detectors
Integrate a compatible detector that provides a voltage-free normally open or normally closed contact.
Retrofit Alarm Projects
Convert selected wired contact devices into supervised wireless points within a compatible RADION system.
Choosing the Right Model
- Choose the RFUN if: You need both an integrated magnetic contact and an input for a compatible external dry contact device.
- Choose a standard wireless door contact if: Only basic door or window opening detection is required and no external input is needed.
- Check receiver compatibility: Confirm the installed Bosch receiver supports the RFUN and the correct 433.42MHz regional frequency.
- Check the external detector output: The connected device must provide a compatible voltage-free normally open or normally closed contact.
- Test wireless coverage: Verify reliable communication at the intended mounting location before completing the installation.
FAQs
- What does the Bosch RFUN do?
The RFUN is a universal wireless alarm transmitter that can monitor a door or window through its integrated magnetic reed switch. It can also accept a supervised input from a compatible external dry contact detector. - Can the RFUN connect to a normally open or normally closed detector?
Yes. The external alarm loop can be configured for a normally open or normally closed voltage-free contact. The loop must be wired and supervised according to the Bosch installation instructions. - Does the RFUN include a magnetic contact?
Yes. The transmitter includes an integrated reed switch and matching magnet for monitoring a suitable door or window. Correct alignment and spacing are required for reliable opening detection. - Does it have tamper protection?
Yes. The RFUN includes a cover tamper switch and a wall tamper that can report removal from the mounting surface through compatible alarm equipment. - How long does the battery last?
The replaceable CR123A lithium battery provides a typical service life of up to five years. Actual battery life varies with wireless conditions, transmission frequency, temperature and external input activity. - Can the RFUN power an external detector?
The RFUN is designed to monitor a dry contact input and should not be assumed to power an external detector. Powered detectors require their own suitable power supply and a compatible voltage-free alarm output. - Can the RFUN be installed outdoors?
The transmitter is intended for indoor environments. It should not be exposed directly to rain, condensation, immersion, extreme temperatures or harsh outdoor conditions unless installed inside a suitable protected enclosure approved for the application. - What should I check before buying the RFUN?
Confirm the alarm panel and RADION receiver compatibility, operating frequency, intended detector contact type, mounting space and wireless coverage. Security Wholesalers can supply the RFUN for confirmed compatible Bosch wireless alarm systems.
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