$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.

Multi-depth Soil Moisture and Temperature Sensor 60cm

$1,299.00 AUD
$1,299.00 AUD
Tax included.

Are you irrigating on a schedule and hoping for the best, without actually knowing what's happening in your soil? The Farmo Multi-Depth Soil Moisture and Temperature Sensor gives you a complete picture of soil conditions across six depths (from 10cm to 60cm) straight to your phone. Stop wasting water on fields that don't need it and stop under-irrigating crops that do. With real data from the root zone, you can make smarter irrigation decisions that increase yield, protect crop quality, and reduce water and electricity costs.
Cellular NB-IoT
IP67 Waterproof
1+ Year Battery Life (User Replaceable)
Email & SMS Notifications

Irrigation decisions made without soil data are costly: over-watering wastes water and electricity, while under-watering stresses crops at the most critical growth stages. The Farmo Multi-Depth Soil Moisture and Temperature Sensor uses a factory-calibrated 60cm AquaCheck capacitance probe to measure soil moisture and temperature at six depths simultaneously: 10cm, 20cm, 30cm, 40cm, 50cm, and 60cm. All data is transmitted directly to the Farmo App via the built-in cellular network, giving you a complete picture of your soil profile without setting foot in the paddock. The SIM card, battery, telemetry unit, probe, and 6m cable are all included.

Data & Alerts Include:

  • Soil Moisture 10cm, 20cm, 30cm, 40cm, 50cm, & 60cm (Scaled Frequency Unit)
  • Soil Temperature 10cm, 20cm, 30cm, 40cm, 50cm, & 60cm (Celsius)

Using an auger, create a hole approximately 5cm in diameter to the required depth and insert the 60cm AquaCheck probe. Backfill with a soil slurry to ensure good contact around the sensors, and mount the telemetry enclosure above ground. Once activated via the Farmo App, the device transmits soil moisture and temperature readings from all six depths daily at 9am by default, with more frequent reporting configurable if needed. 

The probe measures soil moisture as a Scaled Frequency Unit (SFU), calibrated from 0 in air to 100 in water. Please note the value returned IS NOT a % of soil moisture, It is also not linear with moisture. Soil temperature is recorded across a range of 0–51°C. 

Set custom threshold alerts in the Farmo App to be notified by SMS or email when moisture levels hit your defined refill point or reach field capacity, and link the data to a Farmo IoT Switch, or a Farmo Smart Plug to automate irrigation pump control.

Assembly Instructions
Product dimensions Probe 60cm • Cable 6m • Enclosure 20cm x 11cm x 5cm
Sensor Capacitance-based soil moisture and soil temperature monitoring device
Capacity 0 (air) to 100 (water) • Temp 0-51 °C
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

Protect the cable from physical damage

How Our Customers Use Farmo to Stay Ahead

Make Informed Irrigation Decisions

Set a low SFU threshold as your refill trigger and a high SFU value as your field capacity cut-off. The sensor tells you precisely when your crop needs water and when the soil is full, so you never over or under-irrigate again.

See the Full Root Zone, from your phone

Six sensors at 10cm intervals from 10cm to 60cm give you a complete picture of how water moves through your soil profile, so you can understand uptake, drainage, and where moisture is actually sitting.

Automate Your Irrigation

Linking your soil moisture data to the Farmo Remote Pump Control or Remote Relay Switch. A high SFU value, representing field capacity, is used to turn irrigation off, while a low SFU value, representing the refill point & triggers irrigation to begin. This setup helps maintain soil moisture between the two levels.

Monitor Temperature at Every Depth

Soil temperature readings at each of the six depths help you time planting, track conditions during germination, and understand how temperature varies through the profile across different seasons.

The Farmo App Experience

Live Soil Profile Visibility

See moisture and temperature readings from all six depths in a single, unified feed. Updated daily at 9am by default, or more frequently if configured. Understand your soil profile at a glance and spot changes before they affect your crop.

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

Real Time Alerts

Configure custom SFU thresholds in the Farmo App and receive instant SMS or email notifications when moisture drops to your refill point or reaches field capacity.

Moisture & Temperature History

Track trends in soil moisture and temperature over time to refine your irrigation strategy, understand seasonal patterns, and fine-tune your trigger thresholds as you accumulate data from your specific soil type and conditions.

Trial The App
$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. 

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

Yes, as long as there’s mobile network coverage (Telstra by default) the device will work. Data is sent over the specialised long distance CatM1/Nb-IoT part of the 4G and 5G networks, so you will find coverage goes further than voice calls on handsets.

SFU stands for Scaled Frequency Unit; the AquaCheck probe is factory-calibrated to read 0 in air and 100 in water. The reading is not a direct percentage of volumetric soil moisture. Instead, you use historical data from your own site. A high SFU value, representing field capacity, is used to turn irrigation off, while a low SFU value, representing the refill point, triggers irrigation to begin. This setup helps maintain soil moisture between the two levels. The ideal trigger points can be estimated using historical data and fine-tuned over time as more data is collected.

Yes. Soil moisture data from the probe can be linked to a Farmo IoT Switch or Remote Relay Switch to automate pump control. 

Installation is simple. Use an auger of approximately 5cm diameter to create the hole for the probe, and a small amount of soil slurry to backfill and ensure good contact around each sensor. The telemetry enclosure mounts above ground on a post.

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Have questions about connectivity, subscriptions, or installation?

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