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Wireless hotel key card switch for retrofit projects. Low-frequency wake-up or RS485 wireless option, battery-powered option to avoid rewiring, room power control without new cable runs. CE RoHS. OEM/ODM supplier.
A wireless key card switch is a guest room power control device that brings card-based energy saving to hotels where running new control wiring is impractical. In operating properties, pulling cable through finished walls, occupied rooms, and fire-rated structures is disruptive and expensive. A wireless hotel key card switch solves this by carrying the card-in/card-out command to an existing relay or contactor over a low-frequency wake-up or RS485 wireless link instead of a new wire. For hotel owners, renovators, and contractors, a wireless key card switch delivers the same deterministic power control as a wired unit while turning a major retrofit into a quick, low-disruption upgrade.
A wireless key card switch works in two stages. At the switch, the guest inserts an IC or RFID key card, and within 0.5 seconds the switch transmits a power-on command wirelessly to a receiver wired to the room's relay or contactor, powering lighting, sockets, and HVAC. When the guest removes the card, the switch sends a power-off command after a selectable 15s, 30s, or 60s delay, letting the air conditioner shut down gracefully. Because the wireless link is local and low-power, the switch does not depend on a building network — it works standalone from the moment it is installed.
A wireless key card switch is available with two link types to suit the project. The low-frequency wake-up option is a simple, robust choice for line-of-sight switch-to-receiver links in a single room, drawing minimal power so the switch can run on a battery for up to two years. The RS485 wireless option is suited to properties that already use RS485 control loops, allowing several switches or rooms to be coordinated on one bus while avoiding new cable pulls. Both options keep installation costs down by connecting to an existing room relay or contactor rather than replacing the entire power path.
A wireless key card switch can be powered either way. Where a switch position has access to a mains feed, the line-powered version operates on AC 100-240V, 50/60Hz and drives a 10A/16A relay for loads up to 3500W. Where no convenient feed exists, the battery-powered option fits the same 86-box, draws under 0.3W in standby, and reports the room power status wirelessly, with typical battery life of up to two years before a quick field replacement. This flexibility means a wireless key card switch can go into nearly any room without rewiring the wall.
The purpose of a wireless key card switch is energy saving, and the mechanism is identical to a wired switch. The room is powered only while a guest card is present, so empty-room HVAC and lighting are switched off automatically. There are no occupancy timers to misfire and no motion thresholds to calibrate — the room follows the guest's card. For a hotel portfolio, adding wireless key card switches across a wing of operating rooms captures the same 20-40% room-level electricity reductions seen with wired installations, without a multi-week construction program.
A wireless key card switch is designed to reuse what is already in the room. It drives the existing relay or contactor rather than replacing the full power path, and it accepts standard IC and RFID guest key cards without reissuing media. It works alongside any hotel door lock brand, including Onity, VingCard, Assa Abloy, and SALTO, with no integration work. For modernizing properties, the RS485 wireless option keeps a path to centralized guest room power control while the wireless transport avoids new wiring.
As an OEM/ODM supplier, we tailor the wireless key card switch to project needs: wireless range, battery or line power, low-frequency or RS485 wireless protocol, face plate finish, and packaging. Minimum order quantity is 50 pcs with samples available in 3-4 days and mass production in 5-7 days. We ship worldwide on FOB Shenzhen, CIF, DDP, or EXW terms and support T/T, L/C, and Trade Assurance payment, with every unit carrying CE and RoHS compliance.
Tell us your room count, retrofit constraints (wall construction, distance between switch and relay), available power at the switch, and whether you prefer low-frequency or RS485 wireless. We will return a per-room cost, wireless coverage guidance, integration diagram, and sample plan within 24 business hours.
A wireless key card switch removes the need to pull new control wiring through finished walls. The low-frequency wake-up or RS485 wireless option carries the room power command to an existing receiver, cutting install cost and disruption in operating hotels.
Where a nearby power feed is impractical, a battery-powered wireless key card switch fits a standard 86-box and reports card-in/card-out wirelessly, with typical battery life of up to two years before replacement.
The wireless signal drives an existing relay or contactor in the room, so retrofit can reuse the current switching hardware instead of replacing the full power path.
Just like a wired switch, the wireless version powers the room on card insertion and cuts power after a delay on removal, delivering deterministic energy saving without depending on a building network.
The flush 86-box face mounts in the existing switch opening, letting retrofit teams upgrade a room in minutes and keep the guest-facing appearance consistent.
| Power Source | AC wired or optional battery supply |
|---|---|
| Rated Voltage | AC 100-240V, 50 60Hz |
| Rated Current | 10A 16A resistive, 8A inductive |
| Card Detection | IC RFID insertion |
| Wireless Option | Low-frequency wake-up RS485 wireless |
| Power-off Delay | 15s 30s 60s |
| Output | Dry contact + wireless receiver |
| Max Load | 2200W @ 10A, 3500W @ 16A |
| Standby Power | 0.3W |
| Mounting | Standard 86-box wall mount |
| Battery Life | Up to 2 years typical |
| Card Type | Guest room key cards, IC RFID tags |
| Operating Temperature | 20°C to +55°C |
| IP Rating | IP20 |
| Dimensions | 86mm x 86mm x 36mm |
| Housing | Fire-retardant PC, white or custom color |
Compare the 3 protocols, check hotel-specific case studies, and download the installation guide
Guest-room-style key card power switching for serviced apartments, student accommodation, homestays, and apartment hotels, configured to each project.
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