The plug-and-play gateway that pays for itself in a single summer — occupancy-driven AC automation that cuts HVAC bills 17–30 %, paired with remote control of any AC from anywhere, measured savings, and antitheft. Purpose-built for short-term rentals.
USB-C powered, low-profile (95 × 95 × 28 mm), and silent. Designed to disappear into any short-term rental interior, from minimalist studios to traditional villas.
| Presence sensor | 24 GHz mmWave radar |
| Climate sensor | Temperature ±0.1 °C, humidity ±1 % |
| IR control | Capture and emit any standard IR signal |
| Connectivity | Wi-Fi 6 + Bluetooth LE |
| Power | USB-C (cable included) |
| Certification | CE (RED, EMC, safety) |
Each feature was designed for the short-term rental context. Not generic smart-home features adapted for STRs.
200+ AC models pre-built, five presets installed in seconds. Set the rules once: energy-saving then off when the room is confirmed empty (or off-only, or disabled), quiet hours the device never acts during, cooling-season months for your climate. Cerloq runs them automatically from the room’s own occupancy — and it only ever reduces. Comfort stays on the guest’s remote.
24 GHz mmWave radar with an on-device confidence score. Detects a still or sleeping guest by their breathing — the case a motion sensor misses entirely. No camera, no microphone; the presence verdict never leaves the device.
Off, cool eco, cool full, heat eco, heat full — from anywhere in the world, even with the automation disabled. Guest lands in 40 minutes? One tap pre-cools the apartment. No calendar, no integration: occupancy alone drives the automation and the savings tracking.
Verifies the cleaner actually came, and alerts you if nobody did before the next check-in. Requires a connected calendar — without checkout times a cleaner and a returning guest look identical.
Cerloq reports the AC runtime it actually avoided — hours, not a guess: your AC was running, the room was empty, we switched it off. Totals by day, week and month. Add an optional clamp meter on the AC circuit and the same hours become measured kWh and euros.
Hears the standard T3 alarm cadence through a tuned hardware resonator that is physically incapable of capturing speech — not a microphone. Works with the cheap ceiling alarm Greek law already requires, and tells you it went off while you are not there.
Arm it from the app when the apartment should be empty. Any presence while armed pushes you an alert immediately. Disarmed during stays, so guests never trigger it.
Humidity + temperature tracking during vacant periods. Alerts you before mold takes hold — one tap in the app runs the AC remotely. Avoids the €1000 remediation bill. The device never runs the AC on its own.
€99 hardware. Free software tier. €10/mo Pro tier with ROI dashboard. 30-day money-back guarantee.
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