K-Type Thermocouple Transmitter Module | 0-5V & 0-10V Output

K-Type Thermocouple to Voltage Transmitter Module — Precise Linear Signal Conversion

Convert K-type thermocouple readings into clean, linear analog voltage signals with this compact Temperature Transmitter Module. Offering selectable output ranges of 0–5V or 0–10V, it is ideal for engineers, makers, and automation professionals who need reliable temperature-to-voltage conversion for PLCs, data loggers, SCADA systems, and remote monitoring equipment.

Key Features

• Wide Temperature Measurement Range: -100°C to +1100°C — suitable for demanding industrial and laboratory applications.
• Dual Output Modes: Selectable via onboard J1 pad — open circuit for 0.00V–5.00V output; short circuit for 0.00V–10.00V output (default: open circuit / 0–5V).
• High Resolution: 0.0041666 V/°C (0–5V mode) | 0.0083333 V/°C (0–10V mode) for fine-grained, accurate readings.
• Broad Power Supply Compatibility: Operates on 9V–24V DC (use ≥15V supply when selecting the 0–10V output range).
• Ultra-Compact Form Factor: Only 26mm × 23mm × 10mm — fits easily into enclosures and custom PCB assemblies.
• Standard Interface Terminals: Clear labelled connectors for power (24V/G), thermocouple input (I+/I-), and analog signal output (OUT/G).

Module Specifications

Interface Pin Reference

• 24V — Positive power input (9V–24V DC)
• G — Power ground
• I+ — Thermocouple positive electrode
• I– — Thermocouple negative electrode
• OUT — Analog signal output (0–5V or 0–10V)
• G — Signal ground

Temperature Calculation Formula

(Output Voltage (V) ÷ Resolution) − 100°C = Measured Temperature (°C)

Example (0–5V mode): Output = 2.5V → (2.5 ÷ 0.0041666) − 100 = 500°C

Typical Applications

• Industrial process temperature monitoring
• PLC and SCADA analog input integration
• Remote data acquisition and control systems
• DIY electronics and Arduino/Raspberry Pi projects
• Laboratory and research instrumentation
• Furnace, kiln, and oven temperature feedback

For guidance on safe wiring practices for electronic modules in industrial environments, refer to OSHA Electrical Safety Standards.

Frequently Asked Questions

Q: What is the difference between the 0–5V and 0–10V output modes on this K-type temperature transmitter module?

A: The output mode is selected via the onboard J1 pad. With the pad in the open-circuit (default) state, the module outputs a 0.00V–5.00V analog signal. When the J1 pad is short-circuited, the output range switches to 0.00V–10.00V. Note that when using the 0–10V output range, your power supply voltage must be at least 15V DC to ensure accurate results.

Q: What types of systems can I connect this thermocouple voltage transmitter module to?

A: This module is designed to interface directly with any device that accepts a standard 0–5V or 0–10V analog input — including PLCs, data loggers, SCADA systems, Arduino and Raspberry Pi microcontrollers, industrial controllers, and custom data acquisition boards. Its compact 26mm × 23mm size makes it easy to integrate into tight enclosures.

Q: What is the temperature measurement range of this K-type transmitter module?

A: The module supports a wide measurement range of -100°C to +1100°C, making it suitable for both sub-zero environments and high-temperature industrial processes such as furnaces, kilns, and ovens when paired with an appropriate K-type thermocouple probe.

Q: How do I calculate the actual temperature from the output voltage?

A: Use the formula: (Output Voltage ÷ Resolution) − 100 = Temperature in °C. For the 0–5V mode, the resolution is 0.0041666 V/°C. For the 0–10V mode, it is 0.0083333 V/°C. For example, in 0–5V mode, a reading of 1.0V corresponds to (1.0 ÷ 0.0041666) − 100 = approximately 140°C.