Everything you
need to know.

An automatic water pump controller for residential homes. It measures your tank level with an ultrasonic sensor and turns the pump on or off by itself, exactly when it's needed — no climbing to the roof, no remembering to check manually. It has three operating modes (automatic, semi-automatic and manual) so you decide how much control you want, and lets you monitor and control everything from your phone, with or without internet.

The ultrasonic sensor, mounted on the tank lid, measures the distance to the water several times a second. You set two numbers from the app: the minimum distance (full tank) and the maximum (empty tank). From that, the controller calculates the level as a percentage and decides when to act — turning the pump on when the level drops below the threshold you set, and off once it reaches 100%. You can also switch to manual or semi-automatic mode and control the pump directly from the app, without losing any of the system's protections.

No. Tinajon Pro was designed to work without internet. On your home WiFi network, your phone talks directly to the device, with no external server involved. If you don't have home WiFi, the controller creates its own private network that your phone connects to — full control, without depending on anyone else. Internet is only needed for the optional cloud features: remote history, control from outside the house, and Telegram alerts.

Nothing, in the ways that matter. The system keeps working exactly the same: the sensor keeps measuring, the pump turns on and off according to whichever mode is configured, and the local app keeps controlling everything on your WiFi network. Only the optional cloud features pause — remote history, control from outside the house, and Telegram alerts. As soon as the internet comes back, everything syncs automatically, with nothing needed from you.

The magnetic contactor stays open by default without power, which keeps the pump safely off — it can't start on its own from a voltage spike when power returns. When power comes back, the controller starts automatically in whichever mode it had configured — automatic, semi-automatic or manual — picking back up the saved thresholds and protections, with nothing for you to reconfigure.

Before assuming something's broken, check these common causes: the tank level may be above the configured start threshold (it only turns on once the level drops below that %); a block schedule may be active (in automatic mode the pump won't start on its own during those hours, but manual control still works); if the cistern sensor is enabled, the system won't start if the source has no water available; there's a configurable minimum pause between consecutive starts; and if there's a pending fault shown in the app, you need to review and acknowledge it before the pump will run again. The troubleshooting section of the manual walks through each of these cases in more detail.

Yes, if you have experience with electrical installations. The controller comes in a DIN rail form factor: you can mount it inside an existing electrical panel, or fix a length of DIN rail to any surface near the pump and clip it there. It runs on direct line voltage — 110V or 220V, adapts automatically — and drives the pump through a solid-state relay and a magnetic contactor. The ultrasonic sensor mounts on the tank lid, with up to 20 meters of cable. We include a step-by-step installation guide with images, also published in the site's user manual.

We strongly recommend it. The device runs on direct line voltage (110V or 220V) and is installed in electrical panels or surfaces near the panel — it's not a low-voltage accessory. If you don't have experience with that kind of electrical work, an electrician ensures a safe installation that meets local codes, and avoids damage to the unit, the pump, or the home's electrical wiring.

Yes. The controller accepts direct 110V or 220V AC power and adapts automatically, with no manual configuration or switches to flip. The pump is driven through a solid-state relay (SSR) that controls a magnetic contactor — you don't need an external power supply or adapter, and it works the same on either voltage.

On the lid or top of the tank, pointing down toward the water, with a direct and unobstructed line of sight to the surface. It's important to leave at least 30 cm between the sensor and the maximum water level — any closer and the sensor can give false readings due to the blind zone inherent to this type of ultrasonic sensor (check the sensor's datasheet for more technical detail).

The system has been tested with cables up to 20 meters without loss of accuracy. For long distances we recommend good-quality shielded cable, routed away from high-voltage lines to avoid electrical interference that could affect the sensor reading.

In automatic mode, the pump turns on when the level drops to the configured threshold, before the tank empties completely — you choose that point, with enough margin to avoid running out of water. Additionally, if you have the cistern sensor (float) enabled, the system won't start the pump if the water source has no water available to pump, protecting it from dry running.

The system detects invalid or out-of-range readings and holds the last known position instead of acting on bad data. The pump won't turn on automatically without a reliable reading. If you have the cloud enabled, you get a Telegram alert so you can check it — and since the sensor is a low-cost component, keeping a spare on hand makes replacement quick.

The cistern sensor (float) in the supply reservoir detects whether water is available. If the source is empty, the system won't turn on the pump even if the tank level is low, protecting it from dry running. This sensor is optional — if your water source never runs dry (direct street water, for example), you can skip it.

A safety stop at 100%, so the tank never overflows. A configurable flow watchdog — it periodically checks that the level has risen; if it hasn't, it stops the pump and flags a fault (possible empty source or mechanical issue). An optional cistern sensor against dry running. A configurable minimum pause between consecutive starts, so the motor isn't forced through back-to-back cycles. And the magnetic contactor stays open by default when there's no power — the pump can't start on its own if the power goes out.

Yes. The free app for iOS and Android lets you see the tank level in real time, turn the pump on and off, switch between the three operating modes, configure start thresholds and review the event history — all from your phone, whether on the same network as the device or remotely if you enabled the cloud.

There's a free app for iOS and Android that offers the full experience, including notifications and remote control. The device also has a built-in web interface you can open from any browser connected to the same network, without installing anything — handy as a backup or for a quick check from a computer.

Completely. The cloud is 100% optional, and you can turn it off at any time with a switch in settings even if you have internet. Without it you control the pump, see the level, configure thresholds and review the latest events from the app on your local network. The cloud adds extra features — permanent history, remote control, Telegram — but is never a requirement for basic operation.

A complete event history stored permanently (without the cloud, only the most recent events are kept in the device's own memory), remote control from anywhere with internet, automatic Telegram and push notifications when the level drops or there's a problem, and access to the @TinajonBot bot to check status and give commands by message without opening the app.

Just one: the cost difference between having a display or not didn't justify keeping two product lines, so we focused on making a single, well-resolved unit for everyone.

A DIN-rail IoT controller with an OLED display, a buzzer for sound alerts and two physical buttons, an ultrasonic level sensor, a solid-state relay and magnetic contactor to drive the pump, connection cables, free access to the mobile app (iOS and Android), and OTA firmware updates for the life of the device.

Only the first time. During initial setup you enter the minimum distance (full tank) and maximum distance (empty tank) from the app. After that the system calculates the level percentage automatically and needs no further adjustment, unless you change the tank or the sensor position.

Yes, there is one important recommendation: the ultrasonic sensor is an inexpensive component exposed to the outdoors — humidity, heat and sun — and its typical lifespan is one to two years. We recommend checking it yearly and keeping a spare on hand; they're easy to find and low cost, and replacing one doesn't require reconfiguring anything beyond recalibration. It's also good practice to check the cable connections once a year, especially on outdoor installations.

Updates install over OTA (Over-The-Air) directly from the device's web interface on your local network, or from the app if you have the cloud enabled. No need to remove it, open it up, or connect cables. The process takes less than two minutes, and the device reboots on its own once it's done.

Yes, it was designed with Cuba in mind. It works without internet on Nauta Hogar networks or directly through the device's own WiFi network — without depending on the cloud for any basic function. Recent history, control and local alerts work the same with or without an internet connection, and the cloud features (when pay-by-time internet is available) are an extra, never a requirement.

Yes. If your home router has no internet access, Tinajon Pro keeps working 100% for local control. The app talks directly to the device on your network without going through any external server, so the lack of internet doesn't affect level measurement or turning the pump on and off. Only the cloud features (Telegram, remote history) require real internet.

Yes. The device is designed for this — built for markets where power outages are part of the routine, not an exception. It starts automatically when power returns and resumes the configuration saved in its memory (mode, thresholds, protections), with nothing to reconfigure. The relay stays open without power (pump off), preventing unintended starts when power comes back. No manual action is required after an outage.