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DFRobot Gravity: I2C High Temperature Sensor (K-Type, 800℃) compatible to Arduino, Raspberry pi

DFRobot Gravity: I2C High Temperature Sensor (K-Type, 800℃) compatible to Arduino, Raspberry pi

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PT100 is suitable for most of the temperature measurement below 400°C, but usually the temperature of the household natural gas stove can reach over 800°C, and the temperature of the pottery kiln or high-power electric furnace can be more than 1000°C. The K-type thermocouple are commonly used in such ultra-high temperature scenes.

The digital K-type high temperature sensor consists of a signal amplification conversion module and a stainless steel sheathed K-type thermocouple probe. When the K-type thermocouple probe is placed near a high-temperature heat source, the probe generates a small voltage proportional to the temperature due to the thermoelectric effect. The module uses a MAX31855K dedicated chip to amplify this small voltage, convert it to digital signals, and compensate accordingly. The temperature readings can be read through Gravity I2C interface. The module can measure extremely wide temperature ranging from -270°C to 1372°C, the error from -200°C to 700°C is within ±2°C, and the error from 700°C to 1350°C is within ±4°C. The attached K-type thermocouple can measure up to 800 °C with error within ± 2.5 °C.


14 bit, 0.25°C digital high-resolution temperature measurement

Extremely wide temperature range

Wide input voltage, compatible with 3.3V and 5V controllers

Gravity I2C interface, convenient connection

Fits any K-type thermocouple probe


Electric Oven, Electric Furnace

High Temperature Flame, Gas

Pottery Kiln


Signal Amplification Conversion Module

Input Voltage (VCC): 3.3V~5.5V

Probe: K Type Thermocouple

Temperature Range: -270°C~1372°C

Resolution: 0.25 °C

Error: within ≤ ±2°C(-200°C~700°C) ~ ±4°C(700°C~1350°C)

Interfaces: Gravity I2C (Logic Level 0-3.3V)

Dimension: 44.0mm*22.0mm

Armored K-Type Thermocouple Probe

Temperature Range: up to 800 °C

Error: ≤ ±2.5°C

Wire Length: 1.5m

Probe Length: 50mm

Probe Diameter: Φ4mm

Features: Waterproof, Corrosion Resistant (Weak Acid or Alkali Resistant, Rustproof), High Temperature Resistance


Signal Amplification Conversion Module x1

Armored K-Type Thermocouple Probe x1

Gravity-4P I2C/ UART Sensor Wire x1