Introduction to Sensor
Soil Temperature Profile (TEROS 06)
Soil Temperature Profile Probe
The TEROS 06 is an ultra-robust, research-grade soil temperature profile probe designed to deliver accurate temperature measurements at six different soil depths. With high accuracy and easy integration with the ZL6 data logger and ZENTRA Cloud, it provides reliable data for environmental monitoring, modeling, and research applications.
Specifications
Specifications
Measurement Specifications
| Parameter | Specification |
|---|---|
| Measurement Depths | 5 cm, 10 cm, 20 cm, 30 cm, 50 cm, 100 cm |
| Temperature | Range: -20.00 – 50.00 °C Resolution: ±0.03 °C Accuracy: ± 0.1 °C (0 °C to 30 °C), ± 0.2 °C (-20 °C to 50 °C) |
Communication Specifications
| Parameter | Specification |
|---|---|
| Output | SDI-12 One-wire Serial Interface: DDI communications protocol, SDI-12 communications protocol RS-485 two-wire-serial-interface (M12 connector only): tensioLINK serial communications protocol, Modbus RTU communications protocol |
| Data Logger Compatibility | METER ZL6 data loggers and any data acquisition system capable of 3.8- to 28.0-VDC power and serial interface with SDI-12 and/or RS-485 interface, Modbus RTU or tensioLINK communication |
Physical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | Diameter: 2.0 cm (0.79 in) Length: 104.0 cm (40.94 in) |
| Materials | Shaft: PA66GF30 Sensor Elements: Stainless steel |
| Operating Temperature Range | Minimum: -30.00 °C Maximum: 60.00 °C |
| Cable Length | 4.5 m (standard) 75 m (maximum cable length using M12 connector and elongation cables) |
| Connector Types | 3.5-mm stereo plug connector 4-pin M12 plug connector NOTE: If a stripped and tinned wire is needed, please contact Customer Support. |
Electrical and Timing Characteristics
| Parameter | Specification |
|---|---|
| Supply Voltage (VCC to GND) | Minimum: 3.9 VDC continuous Maximum: 28.0 VDC continuous |
| Digital Input Voltage (Logic High) | Minimum: 1.9 V Typical: 3.6 V Maximum: 5.0 V |
| Digital Input Voltage (Logic Low) | Minimum: -0.3 V Typical: 0.0 V Maximum: 1.0 V |
| Digital Output Voltage (Logic High) | Typical: 3.6 V continuous |
| Power Line Slew Rate | Minimum: 1.0 V/ms |
| Current Drain (During Measurement) | Minimum: 2.0 mA Typical: 2.5 mA Maximum: 4.0 mA |
| Current Drain (While Asleep) | Typical: 80 µA |
| Power Up Time (DDI Serial) | Minimum: 210 ms Maximum: 400 ms |
| Power Up Time (SDI-12, DDI Disabled) | Minimum: 210 ms Maximum: 400 ms |
| Power Up Time (RS-485 Ready, DDI Disabled) | Minimum: 210 ms Maximum: 400 ms |
| Measurement Duration | Minimum: 30 ms Maximum: 240 ms |
Other
| Parameter | Specification |
|---|---|
| Compliance | EM ISO/IEC 17050:2010 (CE Mark) Prop 65 warning |
Features
Special Features
01
Multiple Measurement Depths
Features temperature sensors at -5, -10, -20, -30, -50, and -100 cm for detailed soil profile monitoring.
02
Ultra-Robust Construction
Designed for demanding field conditions, providing reliable performance for long-term soil temperature monitoring.
03
High Temperature Accuracy
Provides accurate soil temperature measurements with an impressive accuracy of ±0.1°C.
04
Plug-and-Play Operation
Connects easily with the ZL6 data logger for quick installation and reliable data collection.
Applications

