Hayashi Denko SK-2-A-6.4-U Thermo Couple Sensor

Precision mineral‑insulated (MI) thermocouple with a compact 6.4 mm sheath diameter, designed for fast response and reliable temperature measurement in industrial and laboratory environments. Model: SK‑2‑A‑6.4‑U Thermocouple Type: Type K (Chromel–Alumel) Construction: Mineral-insulated sheath with bare-wire lead direct connection Sheath Material: Stainless steel (austenitic, typically SUS304/316) Sheath Outer Diameter: Ø 6.4 mm Junction Type: Ungrounded (U) Temperature Range: –40 °C to +1050 °C (typical sheath limits) Tolerance: JIS Class 1 or 2 (selectable) Response Time (63.2 % in stirred water): ~6.1 s Response Time (90 % in stirred water): ~12.6 s Response Time (63.2 % in still air): ~254 s Response Time (90 % in still air): ~588 s Minimum Bend Radius: ≥ 5× sheath Ø (≈32 mm) Certifications: Compliant with JIS C1602/C1605 standards Typical Length: Varies (commonly 6–8 ft with connectors) Condition: New or surplus, often sold in lots around US $80 Manufacturer: Hayashi Denko Co., Ltd. (Japan) Please review pictures carefully and let us know if you have any questions!