美国Dwyer压力表2005Dwyer公司是一家仪器仪表制造公司，全程对差压、温度、压力、液位和流量的测量，变送和控制等方面拥有众多精密仪器仪表的制造公司。Dwyer公司建立与1931年，在1955年时把制造总部从伊利诺斯州的芝加哥迁移到印第安纳州的密歇根市并建立起新，更加完善的制造工厂和辅助设施
2001 Differential pressure gage, range 0-1.0" w.c., minor divisions .02.
2002 Differential pressure gage, range 0-2.0" w.c., minor divisions .05.
2003 Differential pressure gage, range 0-3.0" w.c., minor divisions .10.
2004 Differential pressure gage, range 0-4.0" w.c., minor divisions .10.
2005 Differential pressure gage, range 0-5.0" w.c., minor divisions .10.
2006 Differential pressure gage, range 0-6.0" w.c., minor divisions .20.
2008 Differential pressure gage, range 0-8.0" w.c., minor divisions .20.
2010 Differential pressure gage, range 0-10" w.c., minor divisions .20.
2015 Differential pressure gage, range 0-15" w.c., minor divisions .50.
2020 Differential pressure gage, range 0-20" w.c., minor divisions .50.
2025 Differential pressure gage, range 0-25" w.c., minor divisions .50.
2030 Differential pressure gage, range 0-30" w.c., minor divisions 1.0.
2040 Differential pressure gage, range 0-40" w.c., minor divisions 1.0.
2050 Differential pressure gage, range 0-50" w.c., minor divisions 1.0.
2060 Differential pressure gage, range 0-60" w.c., minor divisions 2.0.
2080 Differential pressure gage, range 0-80" w.c., minor divisions 2.0.
2100 Differential pressure gage, range 0-100" w.c., minor divisions 2.0.
2150 Differential pressure gage, range 0-150" w.c., minor divisions 5.0.