INFWIN DigiTEMP Rugged Digital Temperature Sensor
The INFWIN DigiTEMP is a rugged digital temperature sensor with SDI-12 or RS485/Modbus-RTU output, built for high-accuracy readings in water, soil, and air. Its fully-potted electronics and stainless steel housing suit harsh, submerged, or buried environments. Output interface, power supply, connector type, and cable length are configurable via ordering code - the default variant (DigiTEMP-BAB005) ships with RS485/Modbus-RTU output, 4.5–18V DC supply, a cold-pressed terminal connector, and a 5 m cable.
The probe is small enough to pass through standard 1" (2.5 cm) PVC conduit with 8" (20.3 cm) factory bend corners, and includes a loop hole for mounting weights or pulling the sensor through pipes or tight spaces. Reverse power protection and built-in TVS/ESD protection are included.
Key Features
- High-precision temperature sensing: Accuracy as tight as ±0.2°C over 0–70°C
- Digital output: SDI-12 (V1.3) for universal datalogger compatibility and low-power use, or RS485/Modbus-RTU for long cable runs or multi-sensor networks, both with built-in surge protection
- Rugged construction: Fully potted electronics with no risk of leaking, inside a stainless steel body
- Tough cable: UV-resistant polyurethane cable with water block construction
- Conduit-friendly size: Fits standard 1" (2.5 cm) PVC conduit with 8" (20.3 cm) factory bend corners
- Loop hole: For mounting weights or pulling the sensor through pipes or small spaces
- Low power consumption: Suited to battery-operated dataloggers
- Reverse power protection: Built-in TVS/ESD protection
- Connector options: Cold-pressed terminal or stripped & tinned lead wires
- Configuration utility: SensorOneSet software included for sensor configuration via RS485
- ODM/OEM service available
- Cable length: 5 m standard; custom lengths available
Applications
- Soil temperature monitoring
- Streams and surface water
- Stilling wells
- Dams
- Aquaculture tanks
Important Notes
- The temperature sensing element is rated up to +125°C, but the long-term operating temperature for the sensor as a whole is −40°C to +80°C.
- Accuracy varies by range: ±0.2°C (0–70°C), ±0.3°C (−40–80°C), or ±0.5°C (−40–125°C) - narrower ranges give tighter accuracy.
- Suitable for immersed, surface, or buried installation.
- When using Active Output mode on RS485, only one sensor should be on the network to avoid data collision.
Specifications
| Temperature | |
| Range / Accuracy | 0–70°C: ±0.2°C −40°C to +80°C: ±0.3°C −40°C to +125°C: ±0.5°C |
| Resolution | 0.01°C |
| Long-term operating temperature | −40°C to +80°C |
| Electrical | |
| Output interface | RS485 (Modbus-RTU) or SDI-12, V1.3 (selectable via ordering code) |
| Power supply | 4.5–18V DC |
| Quiescent current | RS485: <300 µA; SDI-12: <10 µA |
| Measuring current | 10 mA during 50 ms measurement |
| Mechanical | |
| Dimensions | 95 × 20 mm (length × diameter) |
| Body material | Stainless steel, fully potted electronics |
| Sealing | Epoxy resin |
| IP rating | IP68 |
| Connector | Cold-pressed terminal or stripped & tinned lead wires (selectable via ordering code) |
| Cable | UV-resistant polyurethane with waterblock; 5 m standard, custom length available |
| Installation | Immersed, surface, or buried |
| Environmental | |
| Operating temperature | −40°C to +80°C |
Ordering Code Guide
| Code 1: Product Series | DigiTEMP | Rugged digital temperature sensor |
| Code 2: Output Interface | A B |
SDI-12 RS485, Modbus-RTU |
| Code 3: Power Supply | A B |
4.5–18V DC Customize |
| Code 4: Connector | B C |
Cold-pressed terminal Stripped & tinned lead wires |
| Code 5: Cable Length | 005 XXX |
5 meters Custom (XXX = length in meters, e.g. 010 = 10 m) |
Default Variant: DigiTEMP-BAB005
| Output interface | RS485, Modbus-RTU |
| Power supply | 4.5–18V DC |
| Connector | Cold-pressed terminal |
| Cable length | 5 meters |
Custom variants (output interface, power supply, connector, cable length) are available; contact us to discuss your requirements.