Field Controller, Four Stage, Includes Temperature Sensor, No Relay

MS4 Panel Mount Control, Includes A99BB-200 Sensor, 14 to 140 Degree Operating Temperature, 0 to 95 % RH Noncondensing Humidity Range

Multi Stage Electronic Temperature Control with Relay Pack and One Temperature Sensor, 120/240 Vac, 0 to 95 % RH Noncondensing Humidity Range

Mounting Track, 2.75" Width x 6" Length, 2" Center to Center, Used to Mount Relays, Current Sensors and Power Supplies

Mounting Track, 4" Width x 48" Length, 2" Center to Center, Used to Mount Relays, Current Sensors and Power Supplies