ITEM NAME:MAX31855 K Type Thermocouple Breakout Board Temperature Measurement Module M2N8 MAX31855 K Type Thermocouple Breakout Board Temperature Measurement Module M2N8 SPI interfaces, high-speed transmission. Direct digital output temperature value, no amplifiers, no ADC. 14-bit resolution, 0.25 degree temperature accuracy. Application probe: K thermocouple, module is not matched. Input voltage: 3-5V DC Measurement temperature range: -200 Celsius to 1350 Celsius Size: 20x23mm/0.78x0.9 in Positioning hole spacing: 15mm/0.59 in Diameter: 3mm colour: blue Material: PC+ metal Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.