RS Pro On/Off Thermostat- 2 Outputs RS Pro On/off Thermostats are designed for use with NTC Sensors. Fast to install and easy to configure, the thermostats have a large display that provides great visibility in a compact design. Due to their design and ease of use, the RS Pro thermostats are ideal for use in industrial or commercial applications. Features and Benefits 35 x 77 mm size On/Off control Relay output for cooling or heating control Alarm relay Single NTC probe input Range between -60 ˚C to +150˚C Probe failure setting, output status can be set to On, Off or Pulse Sensor input offset setting Selectable heating or cooling control Selectable independent, deviation and band alarm types 0000 or 000.0 units displayed Temperature units ˚C or ˚F CE certified