Pneumatic switch, sip or puff. A switch that can be used for sip or puff maneuvering of a scanning transmitter.
Normally open contacts, 4 functions. Very low pressure sip and puff.
Case for CM–3.
Very low pressure sip and puff. Normally open contacts, 2 functions.
Complete sip and puff switch with holder. Includes 4710 SB–2 and 4720 H–SB.