
Continuous level of 3 tanks with ultrasonic sensors, minimum threshold on 2 drums of acid or fertiliser, pressure on the delivery line, litres delivered by the flow meter and leak alarm in the containment basin. Battery sensors, LoRaWAN radio transmission, data and alarms from the app.
What it does
- Three ultrasonic sensors, mounted above the open tanks, measure the distance to the liquid surface from 0.25 to 5 m and send the level every 10 minutes.
- Two capacitive sensors, with the strip glued on the outside of plastic drums and IBCs, report when acid or fertiliser drop below the chosen height: no part touches the product.
- The pressure sensor on the delivery line shows whether the pump is working at the right pressure and warns about clogged filters, breakages and a pump that has stopped.
- The pulse counter reads the flow meter already present on the installation and totals the litres delivered per shift and per day.
- The leak sensor, with the probe on the bottom of the containment basin, raises the alarm as soon as liquid collects.
- Minimum, maximum and pressure thresholds generate notifications on your smartphone; history and charts can also be consulted from a PC.

How it is installed
What is in the kit

| Qty | Device | What it is for |
|---|---|---|
| 1 | LoRaWAN gateway for wall or pole, IP65 | Collects the data from the sensors and sends it to the cloud. Ethernet, Wi-Fi and PoE. |
| 3 | Ultrasonic level sensor, 0.25-5 m, IP67 | Continuous level of the open tanks, without contact with the liquid. |
| 2 | Capacitive threshold sensor for plastic containers | Reorder warning on drums and IBCs of acids and fertilisers. |
| 1 | Pressure sensor for pipes, 0-16 bar | Pressure on the delivery line: pump stopped, clogged filters, breakages. |
| 1 | Pulse counter, IP67 | Reads the existing flow meter and totals the litres delivered. |
| 1 | Probe leak sensor, IP67 | Alarm with 5 mm of liquid in the containment basin. |
Milesight devices of the highest quality with the warranty of the manufacturer. Batteries included in all the sensors, life of up to 10 years for level and pressure with one reading every 10 minutes; the gateway is mains powered.
Available sizes
The size is chosen at the top, together with the version and the connectivity. The diagram, the photo and the table above show the «3 tanks and 2 drums» size; with the other sizes only the quantities of the devices listed below change, the rest of the kit is identical.
- 3 tanks and 2 drums: 3 ultrasonic level sensors, 2 level threshold sensors
- 5 tanks and 4 drums: 5 ultrasonic level sensors, 4 level threshold sensors
In the complete kit the installation material linked to these devices (brackets, chambers, clips, cables, boxes) follows the size chosen. For a different size, write to us from the contacts section.
Available connectivity
- Customer network (Ethernet/Wi-Fi): 1 semi-industrial LoRaWAN gateway
- Built-in 4G: 1 semi-industrial LoRaWAN gateway with 4G. SIM not included
In the complete kit the material for the gateway (network cable, pole, PoE injector) changes accordingly. The SIM for the 4G versions is not included.
Choose the version
- The Milesight devices in the table
- Installation guide and initial configuration
- For those who already have brackets, fittings and wiring material
- Everything in the basic version
- Stainless steel clamps to fix the level sensors and the pressure sensor to brackets and pipes
- Half-inch three-way pressure-gauge cock to mount and isolate the pressure sensor
- 20 m two-wire shielded cable for the connection to the flow meter
- Ethernet cable for the gateway
- Wall plugs, cable ties, double-sided tape, numbered labels and installation diagram
Before you order
Is an internet connection needed on the premises and how far does the gateway reach?
It is needed at the point where the gateway is installed: a network socket or the farm Wi-Fi coverage. The sensors do not use Wi-Fi, they talk to the gateway by radio. If there is no line on the farm, the version with a 4G gateway is available, which requires a data SIM (not included, any operator, less than 1 GB of traffic per month). It is chosen when ordering. Inside the room and in the nearby sheds the radio coverage gives no difficulty; outdoors the manufacturer declares for this gateway up to 2 km in a built-up area, less in the presence of greenhouses and metal structures. The same gateway manages hundreds of devices: sensors in the greenhouse and in the field can be added later.
Do the sensors withstand acids and fertilisers?
The kit is designed not to touch them. The ultrasound measures from above, the threshold strips stay on the outside of the container. For the ultrasonic sensors the manufacturer does not declare resistance to acid vapours: they go on the stock solution and water tanks, not above open tanks of concentrated acid. The pressure sensor has the wetted part in 316L stainless steel and must be mounted where water or diluted solution passes, not on the acid line.
Which containers does the threshold sensor work on?
On plastic drums, barrels and IBCs with a flat and thin wall, up to about 3 mm. It does not give the level continuously: it says whether the liquid is above or below the height of the strip. It does not work on steel and must not be glued onto concrete. For metal tanks or to have the level in centimetres, write to us from the contacts section: we replace the sensor with a suitable one.
What flow meter is needed?
A flow meter with a clean-contact or reed pulse output, not included. Many recent meters are prepared for it and it is enough to add the emitter of the manufacturer. In the app you set how many litres one pulse is worth. If yours has no output, tell us the make and model from the contacts section.
Does the leak sensor also detect oils and diesel?
No. It detects water and liquids that conduct electricity: fertiliser solutions and diluted acids it detects, oils and diesel it does not. The alarm goes off when the liquid reaches 5 mm on the two tips. If the basin is outdoors, rainwater sets off the alarm just like a leak.
I have more tanks or more drums
The kit is configured on the installation: every extra tank requires an ultrasonic sensor, every drum a threshold sensor; gateway and platform stay the same. Among the options of the product you will find the size with 5 tanks and 4 drums. For different situations write to us from the contacts section stating the number, the material and the height of the tanks and drums: we will send you the composition and the quote of the adapted kit.
Battery life
Ultrasonic and pressure sensors: up to 10 years with one reading every 10 minutes at 25 °C. Threshold and leak sensors: more than 10 years under the conditions declared by the manufacturer. Pulse counter: about 5 years with one transmission every 10 minutes. All the batteries are lithium and replaceable; the charge level is visible in the app.
Where is the data consulted and are there any fees?
On the app and on the portal of the manufacturer, from smartphone and PC, with charts, thresholds and notifications; no fee for basic use. Where there is fertigation software or a management system, the gateway can also send the data to that system (MQTT or HTTP): the configuration is included.
What happens if the internet goes down?
The sensors are battery powered and keep measuring; the ultrasonic ones, the pressure sensor and the pulse counter keep the readings in memory and retransmit them when the connection comes back, so the total of the litres is not lost.
Is an electrician needed?
No: no sensor is connected to 230 V and the gateway is powered by its own adapter or from the network cable. The sensors are fixed with screws, cable ties and clamps. A plumber is needed only for the half-inch socket on the delivery line, if it is missing.
What is not included
- Tanks, drums, pumps, dosing units and flow meter: these are the ones of your installation
- The pulse emitter of the flow meter, if it is not already present
- The threaded socket on the delivery line and the pulsation damper, if needed
- The data SIM, in the version with the 4G gateway
- In the "devices only" version: clamps, three-way cock, cables and small hardware
Shipping
Shipping: free in Italy and throughout the EU. Delivery in 10-20 working days.