1 product
Soil & irrigation timing
Measure soil moisture and pH where the crop grows, so irrigation follows the field rather than the calendar.
See these products
Smarter agriculture starts with connected intelligence.
Field-ready sensors for soil, water and greenhouse climate, connected to one dashboard. See conditions as they change, get alerted before they become a problem, and automate compatible pumps and equipment.
- 5agriculture sensors in our catalogue
- LoRaWAN · NB-IoT · 4G · RS485 · Wi-Ficonnectivity options, by model
- App · Email · SMSalerts with reminders and escalation
- Schedules & rulesfor compatible pumps and equipment
Shop by what you measure
Three ways to see your farm more clearly.
1 product
2 products
Water quality & flow
Check that irrigation water is fit for use and see how much flows through your lines.
See these products
2 products
Greenhouse climate
Keep humidity, CO₂ and air quality in range for the crop, with alerts when they drift.
See these productsAgriculture products
Sensors for fields, water and greenhouses.
Specifications and prices come straight from our catalogue. Open a product for full details.
Model SM-250
Soil Moisture & pH Sensor
Solar-powered soil moisture and pH sensor for smart agriculture and irrigation management.
- Range & accuracy
- Moisture: 0-100%, pH: 3-9
- Connectivity
- LoRaWAN, NB-IoT
$54.99
$64.99
Model WQ-450
Water Quality Analyzer
Multi-parameter water quality analyzer measuring pH, TDS, dissolved oxygen, and turbidity.
- Range & accuracy
- pH: 0-14, TDS: 0-50000ppm, DO: 0-20mg/L
- Connectivity
- 4G LTE, RS485, Modbus
$324.99
$349.99
Model FM-600
Ultrasonic Flow Meter
Non-invasive clamp-on ultrasonic flow meter for liquid flow measurement in pipes.
- Range & accuracy
- 0.5-12 m/s, ±1% accuracy
- Connectivity
- RS485, Modbus RTU, 4-20mA
$279.00
$299.00
Model HS-200
Smart Humidity Sensor Pro
WiFi-enabled humidity sensor with real-time cloud reporting. Ideal for HVAC and greenhouse monitoring.
- Range & accuracy
- 0-100% RH, ±2% accuracy
- Connectivity
- WiFi 802.11 b/g/n, MQTT
$30.99
$35.99
Model AQM-300
Air Quality Monitor AQM-300
Multi-parameter air quality monitor measuring PM2.5, PM10, CO2, VOC, temperature and humidity.
- Range & accuracy
- PM2.5: 0-500µg/m³, CO2: 400-5000ppm
- Connectivity
- WiFi, BLE 5.0, USB-C
$184.00
$199.00
Looking for something else? Browse all sensors
How smart farming works with SensorTree
From choosing a sensor to automating a pump.
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01
Choose
Pick sensors by what you need to measure, using the published ranges, connectivity and prices.
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02
Connect
Install the device and add it to your SensorTree account under a site, such as a field or greenhouse.
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Monitor
Follow live readings, trends and device status in the web dashboard and mobile app.
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Control
Switch compatible pumps or valves remotely, through devices with control outputs.
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Automate
Run schedules and rules, such as irrigating when soil moisture drops below your threshold.
Monitoring & control
Every field, reading and pump in one view.
SensorTree is more than a sensor store. Once devices are connected, the platform turns their readings into something you can act on.
- Live readings and trends for every sensor channel, grouped by site.
- Device status so you know when a sensor stops reporting.
- Alerts with severity, reminders and escalation by app, email or SMS.
- Schedules and rules to switch compatible pumps on time or when readings change.
Applications
Where farmers put SensorTree to work.
Greenhouses
Keep the growing climate in range
Humidity and air quality change quickly under glass. Monitor relative humidity, CO₂, particulates and temperature, and get an alert when ventilation or misting needs attention.
- Relative humidity, 0–100 %
- CO₂, VOC and particulates
- Alerts by app, email or SMS
Irrigation
Irrigate when the soil needs it
Solar-powered soil sensors report moisture and pH from the field over long-range networks. Use the readings to time irrigation, and the flow meter to see how much water reaches each line.
- Soil moisture and pH
- LoRaWAN or NB-IoT, solar powered
- Clamp-on flow measurement
Water sources
Know your water before it reaches the crop
Track pH, total dissolved solids, dissolved oxygen and turbidity of reservoirs, wells or tanks, with readings sent over 4G or RS485.
- pH, TDS, dissolved oxygen, turbidity
- 4G LTE and RS485 (Modbus)
- Trends to spot gradual changes
Why SensorTree
Built for the work that happens after the sensor arrives.
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Hardware and platform from one place
Buy sensors in our store and manage them in the same SensorTree dashboard and mobile app.
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Alerts that reach someone
Severity levels, repeating reminders and escalation to the next person by app, email or SMS.
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Monitoring, control and scheduling
Readings, remote switching of compatible equipment, timed schedules and automation rules work together.
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Organised the way your farm is
Group devices by site and location, from a single greenhouse to several fields.
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Specifications you can check
Every product lists its measurement range, accuracy, connectivity and price before you buy.
Find the right solution
What do you want to monitor?
Choose a need to see the recommended product, where it fits and how it connects.
Solar powered and long-range, for fields without Wi-Fi.
SM-250
$54.99
Soil Moisture & pH Sensor
- Range & accuracy
- Moisture: 0-100%, pH: 3-9
- Connectivity
- LoRaWAN, NB-IoT
Need pumps or valves switched automatically too? That needs a compatible device with control outputs. Ask us to confirm compatibility
Checks whether water is fit for use before it reaches the crop.
WQ-450
$324.99
Water Quality Analyzer
- Range & accuracy
- pH: 0-14, TDS: 0-50000ppm, DO: 0-20mg/L
- Connectivity
- 4G LTE, RS485, Modbus
Need pumps or valves switched automatically too? That needs a compatible device with control outputs. Ask us to confirm compatibility
Clamps onto the pipe, so there is no need to cut into the line.
FM-600
$279.00
Ultrasonic Flow Meter
- Range & accuracy
- 0.5-12 m/s, ±1% accuracy
- Connectivity
- RS485, Modbus RTU, 4-20mA
Need pumps or valves switched automatically too? That needs a compatible device with control outputs. Ask us to confirm compatibility
Humidity on its own, or humidity with CO₂, VOC and particulates.
HS-200
$30.99
Smart Humidity Sensor Pro
- Range & accuracy
- 0-100% RH, ±2% accuracy
- Connectivity
- WiFi 802.11 b/g/n, MQTT
AQM-300
$184.00
Air Quality Monitor AQM-300
- Range & accuracy
- PM2.5: 0-500µg/m³, CO2: 400-5000ppm
- Connectivity
- WiFi, BLE 5.0, USB-C
Need pumps or valves switched automatically too? That needs a compatible device with control outputs. Ask us to confirm compatibility
Setup & support
From order to first reading.
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01
Compare specifications
Ranges, accuracy, power and connectivity are listed on each product page.
Browse the catalogue -
02
Order online or ask
Buy listed products with your account, or request a recommendation for larger set-ups.
Ask our team -
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Add devices to sites
Onboard devices in your SensorTree account and assign them to fields or greenhouses.
Sign in to your account -
04
Get help when needed
Guides and support for products, connectivity and the platform.
Visit help & support
What is agricultural IoT?
Agricultural IoT means placing connected sensors in fields, water systems and greenhouses so their readings reach you automatically. Instead of walking every field to check conditions, you see live values and trends on your phone and get alerted when something needs attention.
Which conditions can SensorTree devices monitor on a farm?
Our agriculture range covers soil moisture and pH, water quality (pH, total dissolved solids, dissolved oxygen and turbidity), liquid flow in pipes, greenhouse humidity, and air quality including CO₂. Each product page lists exact measurement ranges and accuracy.
How do I choose the right device?
Start with the decision you want to make: when to irrigate, whether water is fit for use, how much water you use, or whether greenhouse air needs attention. The selection guide on this page maps each need to a product. If your set-up is unusual, send us your requirements and we will recommend a starting point.
How do I connect and onboard a device?
Devices are added to your SensorTree account and assigned to a site and location, such as a field or greenhouse, so their readings appear in the dashboard and mobile app. Our team can help with set-up through the help pages or the enquiry form.
Can I monitor devices remotely?
Yes. Readings, device status and alerts are available in the SensorTree web dashboard and mobile app from anywhere with an internet connection. You choose who is notified by app, email or SMS when a reading crosses a limit.
Which devices support remote control or scheduling?
The sensors on this page measure conditions. Switching pumps or valves, on a schedule or by an automation rule, needs a compatible device with control outputs connected to the platform. Tell us about your pumps and controllers and we will confirm what is compatible before you buy.
What connectivity and installation requirements apply?
It depends on the product. The SM-250 soil sensor is solar powered and uses LoRaWAN or NB-IoT, which suits open fields. The WQ-450 water quality analyzer lists 4G LTE and RS485, the FM-600 flow meter lists RS485 and 4-20 mA, and the HS-200 and AQM-300 use Wi-Fi. Check each product page, and ask us if you are unsure about coverage at your site.
How can I get product or technical support?
Use the Help & Support pages, send an enquiry from this page, or email us. Include the product model and what you are trying to achieve so we can help faster.
Talk to our team
Tell us about your farm.
Share what you grow and what you want to monitor. We'll recommend sensors and a set-up for your fields, water and greenhouses.
- 1We reply within one business day
- 2A short call about your farm
- 3A recommended set of sensors and alerts
- Email info@sensortree.com
- Phone 978-930-4129
- Office Lowell, MA, USA
Build a more connected agricultural operation.
Explore connected devices for agricultural monitoring and automation, and find the right starting point for your farm.