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SparkFun Thermocouple Breakout - MAX31855K

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SparkFun Thermocouple Breakout - MAX31855K
Product image: SparkFun Electronics. Used with affiliate image permission.

Digitize a K-type thermocouple with this MAX31855K breakout. The converter provides a serial interface compatible with SPI, allowing a host to read temperature information rather than directly measuring the thermocouple’s small voltage. Its hot- and cold-junction handling supplies a building block for embedded experiments using a suitable external temperature probe.

Before you buy

Review probe limits, junction wiring, supply and accuracy conditions before interpreting temperature measurements.

SparkFun SKU: SEN-13266 · Category: Thermocouple interfaces

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Official product specifications and documentation

EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.