Gravity: I2C High Temperature Sensor (K-Type, 800℃)
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Description
The Gravity I2C High Temperature Sensor kit combines a dedicated MAX31855K conversion module with an armoured K-type thermocouple probe capable of measuring temperatures up to 800°C. It is an ideal solution for students, makers, and educators seeking reliable ultra-high temperature monitoring for microcontrollers.
Direct connection to Arduino
The module features a standard Gravity I2C interface and operates across a wide 3.3V to 5.5V input voltage range. It connects directly to 5V boards such as the Arduino Uno using the included Gravity 4-pin cable.
Raspberry Pi hardware compatibility
With native 3.3V logic level support on the I2C interface, the module connects directly to single-board computers like the Raspberry Pi. This enables seamless digital temperature logging without needing external voltage shifters.
High temperature flame measurement
Unlike standard sensors that max out below 400°C, this thermocouple setup reliably monitors open gas flames, pottery kilns, and electric furnaces up to 800°C. It delivers accurate readings in extreme thermal environments with an error margin within ±2.5°C.
Precision MAX31855K digital conversion
Powered by a dedicated MAX31855K converter chip, the module provides 14-bit digital output with 0.25°C resolution across an expansive range from -270°C to 1372°C. The amplifier maintains a low error within ±2°C from -200°C to 700°C and ±4°C up to 1350°C.
Durable armoured probe design
The included 50mm stainless steel probe has a 4mm diameter and connects via a 1.5m lead wire. It is waterproof, rustproof, and resistant to weak acids and alkalis for long-term deployment in harsh environments.
Universal K-type probe support
The signal amplification board can be paired with any standard K-type thermocouple probe depending on your project needs. The kit includes the conversion board, one armoured probe, and a Gravity I2C connection wire.
Downloads & documentation
Specifications
| 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 |
| Wire Length | 1.5m |
| Probe Length | 50mm |
| Probe Diameter | Φ4mm |
| Features | Waterproof, Corrosion Resistant (Weak Acid or Alkali Resistant, Rustproof), High Temperature Resistance |
In the box
| Signal Amplification Conversion Module | 1 |
| Armored K-Type Thermocouple Probe | 1 |
| Gravity-4P I2C/ UART Sensor Wire | 1 |
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