fuel tank monitor
fuel tank monitor
fuel tank monitor

$11 per device/month (ex GST)

Your monthly fee covers the SIM card and network connectivity for your device. Farmo runs it all so you're not chasing a separate phone plan.

On top of that, you get the Farmo App, up to 5 users, unlimited email alerts, 20 SMS alerts per device, and scheduled reports — all included, no add-ons required.

Fuel Tank Level Monitor

$899.00 AUD
$899.00 AUD
Tax included.

Are you still spending too much time and money checking your tanks manually? The Famo Fuel Tank Monitor provides precision tracking for fuel storage, giving you real-time visibility into your inventory. Receive instant alerts for low levels or unusual drops, ensuring you never run dry during seeding or harvest, and helping you detect theft or leaks immediately.
Cellular NB-IoT
IP67 Waterproof
1+ Year Battery Life (User Replaceable)
Email & SMS Notifications

Managing fuel is a constant balancing act between overhead costs and operational readiness, especially with the rising fuel costs. The Farmo Fuel Tank Level Monitor replaces the manual dipstick with a high-precision, hydrostatic sensor. This unit is self-contained and battery-powered, using long-range NB-IoT/Cat-M1 connectivity to work across the property without needing Wi-Fi. The sensor samples fuel levels every 15 minutes and reports every 8 hours (configurable). If it detects a ‘rapid fall’, indicating a potential leak, an open tank, or fuel theft, it bypasses its standard reporting and sends an immediate alert via email or SMS. 

Data Includes

  • Depth (m)
  • Percent Full

Alerts

  • Percentage Full
  • Rapid Fall Leak Alert

There must be an opening in the top of the fuel tank to facilitate the installation of the sensor. The sensor probe is lowered into the tank, while the transmitter unit is mounted externally. A 2" Y-strainer is fitted before shipment to allow easy installation on site. The sensor measures the fuel pressure, which is then converted into a depth reading and reported back as a measurement. Once activated via the Farmo App, the device transmits level data at regular intervals, triggering immediate "Rapid Fall" notifications to your smartphone the moment your reserves drop below your custom-set threshold (15cm in 15 minutes by default).

Assembly Instructions
Product dimensions 15cm Height x 11cm Width x 4cm Depth • Cable and Sensor 1.8m • 2" Strainer 20cm H x 15cm W x 8cm Depth
Sensor Hydrostatic pressure sensor
Capacity 1.8m
Connectivity Cellular (NB-IoT/Cat-M1)
Network coverage required Yes. Telstra (default), Optus and international
Waterproof IP67
Battery type LiSoCl2 7aH
Battery lifespan More than 1 year
Subscription required Yes

Warranty

Farmo devices are covered by a 12 month back-to-base warranty. After the standard warranty period expires we apply a pro-rata warranty up to 24 months.


Care & Maintenance

Keep the white enclosure clear of fuel spills

How Our Customers Use Farmo to Stay Ahead

Retire the manual dipstick

Stop driving from tank to tank to measure your fuel reserves. Check your exact fuel levels in centimeters and percentages right from your phone.

24/7 Theft & Leak Detection

Fuel is an expensive asset. Get an immediate "Rapid Fall" alert if fuel levels drop unexpectedly overnight or during the off-season, allowing you to catch theft or a leaking valve in real-time.

Remote Inventory Management

Manage fuel across multiple sites or out-blocks without the travel. See exactly which tanks need a top-up and plan your fuel truck's route for maximum efficiency.

Plug-and-Play Setup

No technicians or complex wiring. Simply mount the level monitor to the top of your tank using the included steel bracket and drop the weighted pressure probe to the bottom.

$11 per device/month (ex GST)

farmo app subscription

Purchase your device once, then choose a monthly subscription per device for connectivity, data, alerts, and app access. Each plan includes the Farmo App, access for up to 5 users, all connectivity fees, unlimited email alerts, 20 SMS alerts per device each month, scheduled reports, and data downloads. 

The Farmo App Experience

Live Tank Visibility

See your current fuel levels in a single, unified feed. Quickly identify which tanks are full and which are dropping, allowing you to plan your day’s run with maximum efficiency.

Phone screen displaying a notification from 'Farmo' about water level meter status.

Real Time Alerts

Don't wait hours to find out you've lost fuel. The device recognises a sudden drop in level and triggers a rapid fall alert the moment it happens, providing a critical layer of security.

Consumption & Leak History

Track your fuel burn over time. Use historical data to reconcile your fuel invoices, monitor consumption during peak periods, and plan your budget for the next season.

Trial The App

Customers Are Saying

Let customers speak for us

from 23 reviews

The electric fence sensors and water rats have provided peace of mind knowing that the cattle are where they should be and with water in the troughs.
Great customer support when I experienced issues with fence sensors.

jeanette

I had a real problem getting accurate and up to date rain data on our farm in far east Gippsland when I spend most of the time in Melbourne. The rain gauge through Farmo solved the problem and the support and backup with questions was great

Mick

We have been using Water Rats for a number of years to monitor outlying or problem troughs. This has proven to be very successful giving peace of mind that water is available for cattle at the specified locations. We have had no issues with the flexiblity, reliability of the Water Rat. It is also helpful that we are linked in via Agriwebb.

malcolm

The "Water rat" is a simple unit that works well.
No installation. Easy to shift from one trough to the next.
Our unit stopped working, & Farmo promptly replaced it with a new unit, no hassles.

Michelle

Great tank monitoring system

Mitchell

Having a level meter on our water tank has meant so much to us in the last 12 months. There’s a huge sense of security in being able to detect unusual level changes, both monitoring the activity of our solar pump and also, during the dry season, the demand on our storage tank. Definitely a really worthwhile investment. Thoroughly recommend this little device.

James

Farmo has been great to deal with—excellent customer service and a team that genuinely cares. Their technology is simple to use and maintain, making it perfect for agriculture. Reliable, well-designed products and great support. Highly recommend!

Bryce

We had issues connecting with the WaterRat when we activated it but, working with customer service they quickly resolved the problem. The WaterRat was a cow life saver!! Our landowner, for some reason, shut the water off while we were away. The WaterRat alerted us when the tank was low and the device tipped on its side, with a stretch of 30+ weather it was worth its weight in gold!! Customer service is amazing!! I will be ordering more for all our pastures.

Dux

We use Farmo water rats in our troughs to keep an eye on the water levels . We can easily move them , as simple as taking them out and throwing them in the next trough as the cattle move paddocks . We can set alerts on our phones to let us know if a trough is empty . With tests they send the alert text within 10 seconds of tilting . They are very easy and cost effective.

Sonia

FAQs

It uses a hydrostatic sensor placed at or near the bottom of the tank. The sensor measures the water pressure, which is then converted into a depth reading and reported back as a measurement.

No.  The unit has a pre-installed NB-IoT/Cat-M1 SIM card. It operates on the same long-range cellular towers used by your mobile phone but with much better penetration through tank walls and over hills. If you have even a basic mobile signal at the tank site, the device will connect.

While the device typically reports status updates every 8 hours to save battery, it features "Edge Processing" intelligence. It "wakes up" every 15 minutes to check the level. If it detects a "Rapid Fall" (e.g., a drop of 15cm in 15 minutes) or hits your custom "Low" or “High” thresholds, it bypasses the schedule and sends an instant data update.

The battery will last 1+ years. Battery status is displayed on the App and when required, a new battery can be ordered from Farmo and installed by the customer.

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Have questions about connectivity, subscriptions, or installation?

General Enquiries | help@farmo.com.au Sales Enquiries | sales@farmo.com.au Tech Support | support@farmo.com.au
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