3100
Prosoft 3100-MCM Communication Interface Module See: 2.03/41-01044 OS:2.0
You will find that the thermostat assembly has a wide operating voltage range from 24 to 277 volts.
Dwyer 3100 PHOTOHELIC PRESSURE SWITCH/GAGE RANGE:0"-100"
With an easy grip surface, you can apply steady pressure without slipping off.