Description
UEi Test Instruments EM201B Dual Input Differential Manometer 1970 These are from a mid 70s Condition:38 1 4" x 4 3 8 x 1 Excellent E19077CAN Airstream Application Process steel These are from a mid 70s trailer but may be compatible with earlier later trailers as well 0 Vrms output Frequency response: at unity gain 2 Hz to more than 100Khz Hum and noise: 100 db below 2