Honeywell 5821 Wireless Temperature / Flood — Specs & Hong Kong Installation
Honeywell 5821 wireless temperature and flood sensor for kitchens, plant rooms, and IT cupboards in Hong Kong.
Best for: Kitchens, bathrooms, plant rooms, and server cupboards
Product overview
5821 reports water leaks and high/low temperature on the same 5800 receiver as door contacts. Typical placements are AC drip trays, hidden pipe joints, and overheating DVR cupboards in meter rooms.
Zones are named clearly (for example “Kitchen leak”) so staff do not treat an environmental alert as an intrusion alarm.
Key features
- Reports leaks before they damage finishes
- Freeze warning for exposed pipe runs
- Overheat alert for compact IT / DVR cupboards
- Same 5800 receiver as door contacts and PIRs
- Professional supply and installation by Swan CCTV in Hong Kong
- Configured and tested on-site (not leave-in-box DIY)
- Documentation and user training included with installation packages
Compatibility
- Honeywell panels with 5800 wireless receivers
- External flood probe / contact input as specified
Manuals, datasheets & resources
Technical specifications
| Type | Wireless flood + temperature |
|---|---|
| Flood | External probe / contact input |
| Temperature | High / low threshold reporting |
| Battery | Lithium (supervised) |
| Use case | Leak, freeze, and overheat warning |
| Brand | Honeywell |
| Series | 5800 Wireless |
| Category | Flood & Temperature Sensor |
| Local support | Supply, install, program, and after-sales by Swan CCTV (Hong Kong) |
| Typical use | Kitchens, bathrooms, plant rooms, and server cupboards |
Hong Kong / local context
Window-unit A/C drip trays and bathroom pipe entries in older blocks are the usual leak sources we cover.
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