seeed Thermocouple Temperature Sensor K Type-1M

AI context

Dense context for pasting into a model prompt — addresses, pinout, voltages, tolerances and the vendor's reference circuit.

PART: none - this is a bare type K thermocouple probe, not a board and not a chip. It has no pads, no pin numbering, no land pattern and no part number of its own; it is an accessory for Seeed's Grove - High Temperature Sensor.
PURPOSE: temperature measurement from -50 C to +600 C over a 1 m lead.

ELECTRICAL INTERFACE: two conductors and nothing else. Type K junction: Chromel is the positive leg, Alumel the negative leg. There is no supply, no bus, no address and no logic level, because there is no electronics in the probe at all. Polarity is the entire interface, and getting it backwards reads a falling temperature where it should read a rising one.

MECHANICS: an overbraided 1 m lead breaking out into two bare stripped tails. No connector is fitted - the tails are terminated by the user. The lead length comes from the product name; the termination is visible only in Seeed's product photograph, not in a published drawing.

TOLERANCES AND RANGE: -50 C to +600 C, as stated in the vendor PDF. Seeed publishes NO accuracy figure, no thermal response time and no insulation rating for this probe, so none is recorded here.

DO NOT CONFUSE: the +/-2.0 % + 2 C accuracy and the -40 C to +125 C amplifier-board range that appear on Seeed's wiki belong to the Grove - High Temperature Sensor board that this probe plugs into, not to the probe. A thermocouple of this type produces a few tens of microvolts per degree C and has a cold-junction compensation requirement - the amplifier board provides both, which is why the probe cannot be read by a bare ADC alone.

REFERENCE CIRCUIT: probe tails -> Grove - High Temperature Sensor (or any type K thermocouple amplifier with cold-junction compensation) -> analog or digital output -> MCU. Do not connect the probe directly to an MCU pin.

TRAPS: no pads exist, so this can never satisfy a datasheet-plus-footprint bar and must not be imported as a routable part. Any polarity convention (red/negative, yellow/positive on standard type K) is a general thermocouple convention, not something Seeed documents for this item - verify with a known-temperature test before trusting the sign of a reading.