20BPG-50 (05703159): B-Series Pressure Murphygage 20DP Differential Pressure Swichgages The tachometer is for negative

The tachometer is for negative ground or isolated electrical systems

The primary use of the EL150EX is for engine cooling systems

temperature-indicating gages

(10703691)

EGS21P-80-12: Electric Pressure Swichgage

20BPG-50 (05703159): B-Series Pressure Murphygage 20DP Differential Pressure Swichgages The tachometer is for negativeThe 20BPG 50 B Series Pressure Murphygage is a high quality, diaphragm actuated indicating gauge, with a pressure range of 0 50 psi. Built with the same heavy duty design as the standard 20 Series Swichgage instrument, the B gage is more compact and is the optimum instrument for gauge only applications. The 20BPG 50 has a high impact polycarbonate lens, a sturdy environmentally sealed steel case, and a polished, low profile stainless steel bezel.