Dwyer 475-1-FM Mark III Handheld Digital Manometer, FM, 0-20" w.c. 10 PSI 1985 ST131 and ST170 (not for

ST131 and ST170 (not for SP130

Fully articulating torsion head for controlled coupling and stable towing

The finish is usually warm amber colored varnish

Second generation patented BDSS high definition drivers for life like tonal balance

Powered for every day: The latest processors and plenty of storage power your family's content to new heights

Dwyer 475-1-FM Mark III Handheld Digital Manometer, FM, 0-20" w.c. 10 PSI 1985 ST131 and ST170 (not forFeatures Rugged aluminum case protects instrument from damage during transport use Large, easy to read LCD and simple operation FM approved to be intrinsically safe in hazardous locations, Class 1, Div 2, Groups A, B, C, D, T4 Ta = 70C Applications Monitoring natural gas pressures on boilers and other combustion equipment Field calibration of other instruments Monitoring or troubleshooting HVAC R systems Air velocity monitoring, when used with a Dwyer