A soil temperature sensor is a device used to measure soil temperature in real time, designed for buried use with a corrosion-resistant probe that can withstand long-term exposure to moisture, fertilizers, and chemicals in soil environments. It is installed directly underground to ensure stable and accurate temperature readings, making it suitable for agriculture, greenhouse cultivation, landscaping, and irrigation systems. By providing continuous soil temperature data, ATO soil sensor helps optimize irrigation timing, improve crop growth conditions, and support precision farming and soil management.
Technical Specifications
| Specification |
Details |
| Model |
ATO-WZPT-035F-FY335PF |
| Temperature Range |
-50–200℃ |
| Probe Material |
Seamless 304 Stainless Steel |
| Probe Diameter & Length |
φ4×30mm |
| Cable |
Thickened three-core silver-plated PTFE shielded cable |
| Lead Length |
1m/1.5m/2m |
| Terminal Type |
U-type terminal |
| Outer Diameter of Sealing |
Approx. φ5.3mm |
| Ingress Protection |
IP66 |
| Certification |
RoHS, CE |
| Installation Type |
Immersion |
| Warranty |
12 months |
Features & Benefits
- Anti-Corrosion Probe: The anti-corrosion soil temperature sensor, built with a 304 stainless steel probe and PTFE sealing, resists acid, alkali, and moisture, ensuring long-term durability and stable performance in harsh soil and industrial environments.
- Reliable Sensor Compatibility: Supports PT100 and K-type sensors, making it easy to integrate with a wide range of monitoring systems.
- Wide Temperature Range: The buried soil temperature sensor measures -50℃ to +200℃, delivering accurate and consistent readings in both low and high-temperature conditions, ideal for soil temperature monitoring, buried temperature measurement, or PT100/K type applications.
- Waterproof & Oil-Resistant Design: PTFE fused sealing provides double-layer protection, ensuring dependable operation in wet, oily, or buried environments.
- Stable Signal Transmission: With a thickened three-core silver-plated PTFE shielded cable, the ATO embedded soil temperature sensor ensures minimal interference and accurate, reliable data output for soil, greenhouse, or industrial monitoring.
- Easy Installation: Comes with a standard U-type terminal and practical lead design for quick setup and secure connection.
- Fast & Accurate Response: The corrosion-resistant soil temperature sensor features an internal thin-film sensor design for fast temperature response and real-time monitoring, making it suitable for PT100/K type or buried soil applications.
- Built for Long-Term Buried Use: Rugged construction allows direct soil embedding and outdoor use, reducing maintenance and ensuring long-term reliability.
Detail

Typical Applications
- Agricultural Soil Monitoring: The anti-corrosion soil temperature sensor is ideal for long-term buried installation in fields or farms, providing accurate soil temperature data to optimize crop growth and irrigation.
- Greenhouse & Horticulture: Ensures stable temperature monitoring for greenhouse soil or plant beds, supporting controlled growth conditions for sensitive plants.
- Environmental Monitoring: The ATO buried soil temperature sensor is suitable for outdoor or buried soil sensors in research plots, parks, or environmental stations, resistant to moisture, corrosion, and harsh weather.
- Industrial & Chemical Facilities: Can measure temperature in corrosive environments such as wastewater treatment, chemical pipelines, or processing equipment due to its anti-corrosion and waterproof design.
- Scientific Research & Experimental Setups: The ATO-WZPT-035F-FY335PF soil temperature sensor provides precise, long-term temperature measurements in lab soil experiments, temperature-controlled experiments, or greenhouse research, ensuring data reliability.
 Soil Temperature Sensor for Agricultural Soil Monitoring |
 Soil Temperature Sensor for Greenhouse & Horticulture |
 Soil Temperature Sensor for Environmental Monitoring |
Selection Guide: PT100 vs K-Type
| Parameter |
PT100 Soil Temperature Sensor |
K-Type Soil Temperature Sensor |
| Temperature Range |
-50–200℃ |
0–200℃ |
| Suitable Environment |
Low-temperature environments, such as cold regions, winter greenhouses, large-scale vegetable beds |
Normal temperature environments, such as home gardens, balcony plants, standard greenhouses |
| Accuracy & Stability |
High accuracy, long-term stability, suitable for precise monitoring or analysis |
Moderate accuracy, sufficient for daily soil monitoring and smart watering |
| Cost |
Higher |
Cost-effective |
| Selection Recommendation |
Recommended for soil temperatures below 0℃ or when high-precision data is needed |
Recommended for stable temperature environments, mainly for daily monitoring or watering reminders |
Additional Notes
- Sensor Longevity: PT100 soil temperature sensors are more robust under extreme temperature fluctuations, ensuring long-term reliability in harsh conditions.
- Integration Considerations: Both temperature sensors can be integrated with smart gardening systems; however, PT100 may require compatible controllers or interfaces due to higher precision.
- Practical Tips: For most home and balcony gardens, K-Type soil sensors provide sufficient accuracy at a lower cost, while PT100 is ideal for research, large-scale farming, or environments prone to frost.
- Installation Advice: Ensure proper soil contact and placement to get accurate readings. Avoid direct exposure to sunlight or irrigation water pooling around the sensor tip for consistent measurements.
FAQ
Q1: Can PT100 and K-Type soil sensors be integrated with all smart gardening systems?
Both can connect to smart gardening platforms. PT100 may need compatible controllers due to higher precision, while K-Type usually works plug-and-play.
Q2: How do I ensure accurate readings after installation?
Place the ATO temperature sensor in good soil contact, avoid direct sunlight or water pooling at the tip, and position it near the plant root zone.
Q3: Can these anti-corrosion soil temperature sensors be used for research or commercial greenhouses?
Yes. PT100 is recommended for research experiments, large-scale greenhouses, or frost-prone areas. K-Type is suitable for home gardens, balconies, or small greenhouses.