Gravity: CT1780 1-Wire K-Type Thermocouple Amplifier (-270℃ to +1372℃ Temp Range)

Gravity CT1780 1-Wire K-Type Thermocouple Amplifier enables reliable measurement of extreme temperatures ranging from -270℃ to +1372℃. Designed for demanding thermal monitoring tasks, this thermocouple signal conditioning module digitizes K‑Type probe output with 14‑bit resolution (0.25℃) and transmits readings through a simple single‑bus interface. The 1‑Wire communication architecture allows multiple sensing nodes to share one data line, making distributed temperature monitoring straightforward for controllers such as Arduino. Integrated cold‑junction compensation maintains measurement stability, while an onboard DIP switch simplifies sensor identification when multiple amplifier boards operate within the same monitoring network.

Figure: Wiring Diagram of CT1780 amplifier & Arduino

Simplified Multi-Point Sensing with 1-Wire Protocol

This thermocouple interface board adopts a 1‑Wire communication protocol similar to the widely used DS18B20 temperature sensor architecture. Multiple sensing modules share a single data line while maintaining independent addressing, significantly reducing wiring complexity in multi-point temperature monitoring systems. Such architecture conserves microcontroller I/O resources and simplifies installation in distributed thermal measurement setups. Industrial ovens, laboratory furnaces, and large heating chambers benefit from this scalable design, where several sensing nodes monitor different zones without requiring complex cabling or multiple communication buses.

Effortless Sensor Identification with Onboard DIP Switch

Multi-sensor networks often require quick identification of the physical probe corresponding to a specific reading. This high‑temperature sensing module integrates an onboard DIP switch that provides a simple user-defined address in addition to the unique 64‑bit ID inherent to the 1‑Wire protocol. When several thermocouple amplifier boards operate on the same communication line, the DIP switch allows immediate visual identification of each sensing node. Installation, configuration, and troubleshooting become significantly easier in industrial heating systems or experimental setups containing numerous measurement points.

Ultra-Wide Measurement Range for Extreme Environments

This K‑type thermocouple amplification solution supports an ultra‑wide measurement span from -270℃ to +1372℃, covering cryogenic research as well as high‑temperature industrial processes. Integrated cold‑junction compensation improves accuracy across the full thermal spectrum, delivering measurement error within ≤±2℃ across the critical -200℃ to 700℃ range. With 14‑bit temperature resolution equivalent to 0.25℃ per step, this precision sensing board provides detailed thermal feedback suitable for kiln monitoring, metallurgical processes, combustion experiments, and advanced process control systems.

Figure: CT1780 thermocouple amplifier test setup

Such capabilities make this gravity-series temperature sensing module suitable for high‑temperature automation, laboratory instrumentation, and advanced maker projects requiring reliable thermal monitoring. Multi‑point furnace supervision, kiln firing profile tracking, combustion analysis, and custom industrial controllers all benefit from this scalable thermocouple measurement platform.