德國WIKA公司是德國乃至世界上Z大的專業生產機械、電子壓力和溫度測試儀表及設備的廠家，總部位于德國法蘭克福克林根堡，是一個擁有3000多名雇員的大型生產型企業，子公司遍布于美國、瑞士、加拿大、法國、英國、南非、巴西、中國、印度等七十多個國家

 

TREND雙金屬溫度計,TREND溫度計,進口溫度計
 

Basic Model: Measure the diameter of the Dial in inches, Also note if there is a screw or "bolt head" in the back. This determines if it can be adjusted or "resettable". Also note the mounting of the stem. the choices are: back, bottom and adjustable angle. You may also find some with left or right hand mounting, but these are less common. Select the Model from the following Table.
General Specifications

Model	Dial Size	Connection	Resettable
20	2"	Back	No
30	3"	Back	Yes
31	3"	Bottom	Yes
32	3"	Adjustable	Yes
33	3"	Back	No
34	3"	Bottom	No
50	5"	Back	Yes
51	5"	Bottom	Yes
52	5"	Adjustable	Yes
53	5"	Back	No
54	5"	Bottom	No

Stem Length: Measure the stem from the top of the threaded connection to the end of the stem. The standard lengths in inches are: 2.5, 4, 6, 9, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72. The length is specified as XXX; 2.5" = 025; 72" = 720