- Temperature
- 12–14 °C
- Humidity
- 60–70 % RH
Warmth ages wine too fast; dry air shrinks corks and lets oxygen in.
Warden alerts you on WhatsApp the moment it leaves the range.
Warden · Environment & stock intelligence
Every room you care about, in one calm glance.
Live temperature, humidity and door monitoring with instant alerts, plus stock and location tracking mapped to your real shelves.
Pharmacy · Clinics · Server rooms · Archives · Cold rooms · Wine cellars
01 · The kit
Six small devices. Installed in a day.
Wireless sensors, one hub and an on-site controller. No rewiring, no servers to look after. We set it up and hand you the keys.
02 · On the wall
Live climate, right where it matters.
The climate sensor reports temperature and humidity through the hub to the on-site controller, and the wall display shows it in the room. If the internet drops, the display keeps running.
03 · Door alarm
Door left open? The hub sounds the alarm.
The moment the door opens, the wall display flags it in red. Leave it open for two minutes and the hub beeps in the room, so whoever is nearby can close it.
04 · WhatsApp alerts
And your phone knows too.
The same alarm lands on WhatsApp for the people on duty. Nothing to install, and nobody has to be in the room.
05 · Live status
Check the room from anywhere.
Temperature, humidity and door status update live in the Warden app. Close the door and you watch the alarm clear.
06 · History
Every reading, kept.
Look back over the day, week or month. Every alert is kept too: when it started, when it was resolved and how many people were told.
07 · Your room, mapped
We draw your real shelves into the app.
Every rack, row and slot in the app matches one in the room.
ExampleShown here as a wine cellar. Layout, item types and fields are customised to your business.
08 · Search → Locate → Light up
Type it. See exactly where it sits.
The slot lights up on the map, and the indicator light in the room switches on to guide you there.
09 · Built around your stock
Bottles today. Medicine or case files tomorrow.
Same map, same search, same alerts — with your items, your fields and your categories.
10 · Built around your room
Curved walls, drawers, display shelves. Drawn into the app.
Not every room is a grid. We read your floor plan wall by wall, bay by bay, and build the app around it, so the map on your phone is the room you stand in.
11 · Any room
One system for every room you need to protect.
Same kit, same app — set up around what you keep and the conditions it needs.
App preview
Every screen, as it really looks.
These are captures of the running Warden apps, shown here with a wine-cellar setup. Labels, layouts and item types are customised for each business.
Who it's for
Who needs Warden?
Warden is for any business where a room that gets too warm, too damp or is left open costs money: pharmacies, clinics, server rooms, archives and museums, F&B cold rooms and wine cellars.
Pharmacies
Medicine store rooms & dispensaries
- Store room and fridge alerts
- Door left open, after hours
- Stock by lot, shelf and slot
Clinics
Vaccine & sample fridges
- 2–8 °C fridge monitoring
- WhatsApp alerts to the right people
- Full reading history
Server rooms
Heat & humidity before hardware fails
- Overheat and humidity alerts
- Door access events
- Racks and assets on a map
Archives & museums
Paper, art & collections
- Stable humidity, watched 24/7
- Door alerts
- Every box and item located
Cold rooms
F&B stores & kitchens
- Temperature alerts
- Door-left-open alerts
- Stock by shelf
Wine cellars
Private cellars & wine lounges
- Cellar climate, live
- Bottle-level stock on a mapped cellar
- AI label scanning
Why it matters
Why monitor temperature, humidity and doors?
Because the damage happens quietly. A fridge drifts out of range overnight, a store room gets damp after a long weekend, a door is left ajar after a delivery. Warden watches the room around the clock and tells the right people the moment something changes, while there is still time to act.
Stock is worth more than sensors
A single spoiled batch of vaccines, a cellar of corked wine or a failed server costs far more than monitoring the room that holds it.
Problems happen after hours
Most rooms are empty at night and over weekends. Alerts reach a phone wherever the person on duty is.
Doors are the quickest way out of range
A door left open is one of the fastest ways a cold or controlled room drifts. The door sensor times it, the hub sounds in the room and WhatsApp follows.
A record you can point to
Every reading and every alert is kept, so you can show what happened, when it was noticed and how it was resolved.
Reference
Recommended temperature and humidity by room
What each kind of room needs, and why it matters. Warden watches the range you set and tells you the moment it drifts.
Typical guidance only. Your regulator, insurer or product label has the final say, and Warden lets you set your own range for every room.
- Temperature
- 2–8 °C
- Humidity
- —
Many vaccines lose potency if they are warmed or frozen, often without any visible sign.
Warden alerts you on WhatsApp the moment it leaves the range.
- Temperature
- Below 25 °C
- Humidity
- Below 60 % RH
Heat and damp shorten shelf life and can break down tablets and packaging.
Warden alerts you on WhatsApp the moment it leaves the range.
- Temperature
- 18–27 °C
- Humidity
- Up to 60 % RH
Overheating shortens hardware life and forces shutdowns; damp air risks condensation.
Warden alerts you on WhatsApp the moment it leaves the range.
- Temperature
- 13–20 °C
- Humidity
- 35–60 % RH
Damp breeds mould, and swings in humidity crack, warp and fade what you keep.
Warden alerts you on WhatsApp the moment it leaves the range.
- Temperature
- 0–5 °C
- Humidity
- —
Bacteria grow quickly above 5 °C, and a door left open warms a cold room fast.
Warden alerts you on WhatsApp the moment it leaves the range.
Typical guidance only. Your regulator, insurer or product label has the final say, and Warden lets you set your own range for every room.
How it works
How Warden works, in three steps
We install the kit
Wireless climate and door sensors, a hub, an on-site controller, a wall display and an indicator light. Battery sensors mean no rewiring.
The room watches itself
Readings flow to the on-site controller and the wall display in the room. Monitoring keeps running on your local network, even when the internet drops.
Your team stays in the loop
WhatsApp alerts, live status, history and stock locations in the web app, on any phone or computer.
Featured project
The technology partner behind Wineslounge.
We designed and built the monitoring, alerting and stock system Wineslounge runs on: wireless sensors, an on-site controller, wall displays and a web app for the whole team.
- Live temperature, humidity and door status
- WhatsApp alerts to the people on duty
- Bottle-level stock on a map of the real cellar
- AI label scanning to add wines in seconds
FAQ
Questions people ask about Warden
What is Warden?
Warden is a room monitoring and stock-location system by Denerf Studio. Wireless sensors track temperature, humidity and door status, an on-site controller shows live readings on a wall display, and a web app sends WhatsApp alerts, keeps the history and maps your stock to your real shelves.
Who is Warden for?
Warden is for any business where a room that gets too warm, too damp or is left open costs money: pharmacies, clinics, server rooms, archives and museums, F&B cold rooms and wine cellars.
How does Warden alert me?
When a reading leaves the range you set, a sensor goes offline or a door stays open too long, Warden sends a WhatsApp message to the people you choose. In the room, the hub sounds an alarm when the door is left open.
Does Warden work without internet?
Monitoring does: the sensors, hub, on-site controller and wall display run on your local network, so the room keeps showing live readings during an outage. WhatsApp alerts, the door alarm and remote access need an internet connection, and resume when it returns.
What temperature and humidity should a wine cellar be?
Most wine keeps best at 12–14 °C and 60–70 % relative humidity, away from light and vibration. Keeping it steady matters as much as the number, so Warden alerts you when either drifts out of the range you set.
What temperature should a vaccine or pharmacy fridge be?
2–8 °C is the standard range for refrigerated medicines and vaccines. Warden watches the fridge or store room around the clock and alerts staff on WhatsApp the moment it leaves the range.
Can Warden track stock and where it is stored?
Yes. The Warden web app keeps item-level stock and maps every rack, row and slot to your real shelves. Search for an item and its slot lights up on the map, and the indicator light in the room guides you to it.
Can the app match my own shelving or cellar layout?
Yes. We draw your floor plan into the app, including curved walls, mixed shelf types and drawers, so every slot in the app matches one in the room. Plain rectangular racks work as they are.
How long does installation take?
Most rooms are installed and online within a day. The sensors are wireless and battery powered, so there is no rewiring.
Do I need my own server or IT team?
No. The on-site controller is included and set up by us, and the web app is hosted for you. The room needs power and Wi-Fi.
Is Warden a certified compliance system?
No. Warden is a monitoring and alerting tool that keeps a full reading history you can refer to, but it is not a certified or calibrated compliance system. If your regulator requires calibrated instruments or validated records, tell us and we will advise.
Is Warden available in Malaysia?
Yes. Warden is designed and built by Denerf Studio in Malaysia, and we install and support it ourselves.
See it running
One calm glance, in your own room.
Tell us what you store and where. We'll show you the room, mapped.