Stainless Steel Temperature Sensor for Water Soil Air Monitoring

Key Features

Rugged digital temperature sensor for water, soil and air
Fully sealed stainless steel housing for harsh environments
IP68 protection for long-term immersion applications
SDI-12 V1.3 or RS485 Modbus RTU output available
High accuracy temperature measurement with 0.01°C resolution
Multiple measuring ranges available up to -40 to 125°C
Low power consumption for battery-powered monitoring systems
Surge protected SDI-12 or RS485 communication interface
Reverse power protection and lightning resistance design
Weather-resistant cable for outdoor and field deployment
Front hole design for adding weight or pipe threading
Suitable for immersion, surface and buried installation
Compact 95 × 20 mm stainless steel probe body
Standard 5 m cable with customizable cable length
OEM and ODM customization available

Product Description

Waterproof Temperature Probe for Industrial and IoT Monitoring Applications

JW-TEMP(Z27) stainless steel temperature sensor is designed for accurate temperature measurement in water, soil, air and industrial environments.

With a durable stainless steel probe housing, waterproof design and multiple output options including RS485 Modbus, this temperature sensor can be integrated into IoT monitoring systems, weather stations, agricultural monitoring networks and industrial automation systems.

The stainless steel temperature probe provides reliable measurement performance for long-term outdoor and field deployment.

Typical applications include:

Soil temperature monitoring
Water temperature monitoring
Aquaculture systems
Weather stations
Environmental monitoring
Greenhouses
Industrial process monitoring

What Is a Stainless Steel Temperature Sensor?

A stainless steel temperature sensor is a temperature measurement device that uses a stainless steel probe to protect the sensing element from environmental exposure.

Compared with plastic or standard temperature probes, stainless steel temperature sensors provide:

Better mechanical protection
Higher corrosion resistance
Improved durability
Better suitability for outdoor environments

They are commonly used where temperature measurement is required in:

Water
Soil
Air
Industrial equipment
Environmental monitoring stations

The stainless steel probe acts as a protective housing while allowing accurate heat transfer from the surrounding environment to the sensing element.

How Does the Temperature Sensor Work?

The sensor measures temperature through an internal temperature sensing element.

The measurement process:

Environmental Temperature

↓

Temperature Sensitive Element

↓

Signal Processing

↓

RS485 / Analog Output

↓

Data Logger

↓

Monitoring Platform

Depending on the selected model, the sensor can output:

Digital RS485 Modbus signal
Analog voltage signal
4-20mA current signal

This allows integration with different monitoring systems.

Water Temperature Monitoring Applications

Temperature Sensor for Water Quality Monitoring

Water temperature affects:

Dissolved oxygen levels
Aquatic organism growth
Chemical reaction processes
Water quality conditions

The stainless steel temperature probe can be installed in:

Aquaculture ponds
Fish farms
Reservoirs
Rivers
Water tanks
Wastewater systems

For complete water monitoring projects, the temperature sensor can be combined with:

Dissolved oxygen sensors
pH sensors
Conductivity sensors
Turbidity sensors

Explore JW-IoT water monitoring solutions:

https://www.jw-iot.com/category/solutions/smart-water-environmental-monitoring

Soil Temperature Monitoring Applications

Stainless Steel Soil Temperature Sensor for Smart Agriculture

Soil temperature is an important parameter for:

Seed germination
Root development
Crop growth
Irrigation management

A stainless steel soil temperature sensor can be installed at different soil depths to monitor temperature changes in the root zone.

Applications include:

Precision agriculture
Greenhouses
Irrigation systems
Agricultural weather stations

Combined with soil moisture sensors, weather stations and IoT platforms, soil temperature monitoring helps farmers make better irrigation and cultivation decisions.

Explore JW-IoT smart agriculture solutions:

https://www.jw-iot.com/category/solutions/smart-agriculture-iot-solutions

Air Temperature Monitoring Applications

Outdoor Environmental Temperature Sensor

The stainless steel temperature sensor can also be used for air temperature monitoring.

Applications include:

Weather stations
Environmental monitoring stations
Smart cities
Industrial sites
Building monitoring

When combined with:

Humidity sensors
Wind sensors
Rain gauges
Solar radiation sensors

it can form a complete environmental monitoring system.

RS485 Modbus Temperature Sensor Integration

For industrial IoT applications, RS485 Modbus output provides reliable long-distance communication.

A typical system:

Temperature Sensor

↓

RS485 Modbus

↓

RTU / Data Logger

↓

4G / LoRaWAN / Ethernet

↓

Cloud Platform

↓

Remote Monitoring

The sensor can communicate with:

PLC systems
Industrial controllers
IoT gateways
SCADA systems
Environmental monitoring platforms

Waterproof Temperature Probe Installation

Water Installation

Recommended:

Fully immerse the sensing area
Avoid direct mechanical impact
Keep cable connection above water level

Soil Installation

Recommended:

Insert the probe vertically into soil
Ensure good contact between soil and sensor
Install at the required root depth

Outdoor Air Installation

Recommended:

Use radiation protection housing
Avoid direct solar radiation
Install in ventilated locations

Stainless Steel Temperature Sensor Advantages

Corrosion Resistance

Stainless steel housing provides better protection against:

Moisture
Outdoor exposure
Chemical environments

Long-Term Stability

The robust probe design allows continuous operation in:

Agriculture fields
Water monitoring stations
Industrial environments

Easy Integration

Multiple communication options allow connection with:

IoT gateways
Data loggers
Cloud platforms

Temperature Sensor Selection Guide

Before selecting a temperature sensor, consider:

1. Measurement Environment

Is the sensor installed in:

Water?
Soil?
Air?
Industrial equipment?

2. Temperature Range

Confirm:

Minimum temperature
Maximum temperature
Required accuracy

3. Output Interface

Common options:

RS485 Modbus
4-20mA
Analog voltage

4. Installation Method

Consider:

Probe length
Cable length
Mounting method
Waterproof requirement

Complete IoT Temperature Monitoring System

A professional temperature monitoring system may include:

Temperature Sensor

Measures environmental temperature.

Data Logger

Collects and processes sensor data.

Communication Device

Options:

4G LTE
LoRaWAN
Ethernet
WiFi

Cloud Platform

Provides:

Real-time monitoring
Historical records
Alarm notifications
Data analysis

JW-IoT provides complete IoT monitoring solutions including sensors, communication devices and cloud integration.

Technical Specifications

Parameter	Specification
Model No.	JW-TEMP(Z27)
Measured Parameter	Temperature
Output Options	SDI-12 V1.3 or RS485 Modbus RTU
Power Supply	4.5–18V DC
SDI-12 Static Current	<10 μA
RS485 Static Current	<600 μA
Measuring Current	10 mA within 50 ms during measurement then returns to sleep mode
Temperature Range Option 1	0 to 70°C
Accuracy Option 1	±0.2°C
Temperature Range Option 2	-40 to 80°C
Accuracy Option 2	±0.3°C
Temperature Range Option 3	-40 to 125°C
Accuracy Option 3	±0.5°C
Resolution	0.01°C
Long-Term Operating Environment	-40 to 80°C
Protection Rating	IP68
Sealing Material	Epoxy resin
Housing Material	Stainless steel
Installation Methods	Immersion, surface mounting, buried installation
Default Cable Length	5 m, customizable
Dimensions	95 × 20 mm
Communication Default	9600 bps, no parity, 8 data bits, 1 stop bit

3. Dimension

Request Temperature Sensor Configuration

Need a temperature sensor for your project?

Send JW-IoT:

Measurement environment
Temperature range
Accuracy requirement
Communication method
Installation condition

Our engineers will recommend a suitable stainless steel temperature monitoring solution.

Contact JW-IoT:

https://www.jw-iot.com/contact-us

FAQ

Q

1. What does this rugged temperature sensor measure?

A

It measures temperature in water, soil and air. It can be used for environmental, hydrological, agricultural and aquaculture monitoring.
Q

2. What temperature ranges are available?

A

Available ranges include 0 to 70°C, -40 to 80°C and -40 to 125°C, with 0.01°C resolution.
Q

3. Is this temperature sensor waterproof?

A

Yes. The sensor has an IP68 protection rating and a fully sealed stainless steel housing for immersion applications.
Q

4. Does this sensor support RS485 Modbus RTU?

A

Yes. The sensor can be supplied with RS485 Modbus RTU output for IoT gateways, PLCs and data acquisition systems.
Q

5. Does this sensor support SDI-12 output?

A

Yes. SDI-12 output is available for environmental data loggers and low-power monitoring stations.
Q

6. Can JW-IoT provide this sensor for hydrological monitoring stations?

A

Yes. JW-IoT can supply this rugged temperature sensor for river, stream, reservoir, dam and stilling well monitoring systems.
Q

7. Can JW-IoT integrate this temperature sensor with a cloud platform?

A

Yes. JW-IoT can integrate the RS485 or SDI-12 version with data loggers, LoRaWAN gateways, 4G gateways and cloud monitoring platforms.
Q

8. Can JW-IoT customize the cable length?

A

Yes. JW-IoT can provide the standard 5 m cable or customized cable length based on installation depth and project requirements.
Q

9. Can JW-IoT provide this sensor for aquaculture projects?

A

Yes. JW-IoT can supply this sensor for aquaculture pond temperature monitoring and smart aquaculture water environment systems.
Q

10. How should the sensor be installed?

A

It can be installed by immersion, surface mounting or buried installation. Do not pull the cable forcefully when removing it from soil or pipe installations.
Q

11. Can the sensor pass through narrow pipes?

A

Yes. The compact probe can pass through pipes with a diameter of 2.54 cm and a bend radius of 20.32 cm.
Q

12. Is this sensor suitable for battery-powered systems?

A

Yes. The sensor has low power consumption and is suitable for battery-powered field monitoring systems, especially with SDI-12 communication.