MATERIAL OF CASE, COVER, and PART OF CONNECTION AISI 304 SENSITIVE STEM MATERIAL AISI 304 or AISI 316 DIAL SCALE PLATE Aluminium - white background with black figures & marks TEMPERATURE RANGE -50~+600℃ OUTER DIAMETER OF STEM 6.3mm, max. 4~12mm by orders LENGTH OF STEM 2''~25'' by orders ACCURACY ± 1.0% APPLICATIONS Transformer dyeing, drier, food processing, boiler, air conditioning equipment, and other industrial machines