Soil NPK Sensor (RS485)

Photo shows typical use of this kind of equipment; the delivered product may differ by model and specification. Photo: UBC Micrometeorology from Vancouver, Canada · CC BY 2.0

Soil & Crop Sensors

Soil NPK Sensor (RS485)

In-soil nitrogen, phosphorus and potassium probe for fertigation and precision nutrient management.

Indicative price

$45 – $90/ unit

Approximate FOB price. The final price depends on quantity, specification and destination, and is confirmed in your quote.

Minimum order
5 unit
Lead time
7–15 days
Origin
China
SKU
SS-SEN-003

Quantity

Estimate for 5 unit

$225 – $450

You don't pay anything now. We first talk with you, understand what you need and agree a contract.

Overview

Ideal for: agronomy service providers, cooperatives, input retailers, extension programmes and farms that want fast, low-cost soil and plant data.

Sourced for you: built by our manufacturing partners in China and delivered to the specification we agree with you. Packaging, quantities and options are confirmed in the contract, and our team supports you with the software and after-sales questions.

Key features

  • Three nutrient readings in one probe
  • Suits greenhouse and open-field logging
  • Compact 3-needle design

Specifications

ParametersN, P, K (mg/kg)
OutputRS485 (Modbus RTU)
Supply9–24 V DC
ProtectionIP68
Probe lengthApprox. 60 mm × 3 needles
Response timeAbout 1–2 s
Cable2–5 m
In the boxSensor, cable
Best forFertigation control, research plots, precision nutrient programmes

Specifications are typical values; the exact specification is confirmed in your contract.

Why SmartSoil

A supplier you can trust with your order

Hardware from our manufacturing partners, software from our own team — one company to call.

Direct from our manufacturing partners

We work with our own manufacturing partners in China, so we have access to every product in this marketplace and can deliver to your specification.

Localised software, easy to use

Products work with our localised Famo AI software — simple, user-friendly and available in 9 languages, so your team can start on day one.

Lifetime software support

We support you with the software for life. Hardware and software from one supplier who answers when you call.

A long-standing reputation in China

We have built a good reputation in China over many years, which helps us get quality hardware produced and delivered reliably.

How ordering works

From first idea to delivery, together

No checkout and no card details — buying equipment for a business is a conversation.

  1. 1

    Browse and add to quote

    Pick products and the quantities you are considering. Prices shown are approximate.

  2. 2

    We talk with you

    Our team contacts you and, through a few meetings, understands exactly what you need.

  3. 3

    Agree a contract

    We agree the specification, final price and terms in a written contract. You pay nothing before this.

  4. 4

    Production and delivery

    Our manufacturing partners produce your order, we coordinate delivery and then support your team with the software.

Nothing to pay today: you send a quote request, we discuss it with you, and only then do we agree a contract.

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