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Soil Tension Sensor
Measures soil tension to indicate soil moisture and irrigation needs in agricultural crop planting. It provides a measuring range of -100–0 kPa with a vacuum gauge accuracy of class 2.5 and resolution of 1 kPa, offering local display without signal output. The sensor is suitable for monitoring crop water shortage and optimizing irrigation timing, with a transparent PVC body and stainless steel mechanical vacuum gauge for long-term outdoor use.
- Vacuum gauge accuracy
- Level 2.5
- Measuring range
- -100–0 kPa
- Output
- Local display, no signal output (vacuum type)
- Operating temperature
- 0–60 °C
- Transparent PVC shell visually shows remaining water level.
- Stainless steel mechanical vacuum gauge for long-term outdoor use.
- High-quality clay head for fast, airtight, high-sensitivity response.
- Not affected by salt ions, fertilizers, pesticides, or irrigation.
- Clear -100–0 kPa vacuum gauge for easy data viewing.
Specifications
TR04 technical data
| Parameter | Value |
|---|---|
| Measuring range | -100–0 kPa |
| Vacuum gauge accuracy | Level 2.5 |
| Resolution | 1 kPa |
| Output | Local display, no signal output (vacuum type) |
| Operating temperature | 0–60 °C |
| Shell material | Transparent PVC plastic tube, stainless steel mechanical watch |
| Protection class | IP67 |
| Measuring depth | 15 cm, 30 cm, 45 cm, 60 cm, 75 cm, 90 cm, 105 cm, 120 cm by model |
| Sensing element | High-quality clay head |
Applications
Where the TR04 is used
Ordering
Terms & how ordering works
- MOQ
- 1 pc (flexible, no minimum for most products)
- Lead time
- 2-3 days for in-stock items, 15-30 days for custom orders
- Warranty
- 12-month warranty on all products
- Shipping
- FOB Ningbo / CIF available
- 01
Send Requirements
Medium, range, output and quantity.
- 02
Quote in 12h
Matched model, price and lead time.
- 03
Pre-shipment Check
Every unit inspected against spec.
- 04
Ship FOB / CIF
Export documents handled for you.
Request a Quote
TR04 Soil Tension Sensor
Sales engineer replies within 12 hours
Or WhatsApp +86-15958288207
TR04 questions
What ranges are available for the TR04?
What is the MOQ and lead time?
Can the TR04 be customized?
Do you manufacture this transmitter?
Need the right soil tension sensor for your process?
Send the medium, range, output, and quantity. We will confirm the matching option and a FOB Ningbo quote.




