The Series 1500 Temperature Controller is a reliable, accurate and fully programmable temperature control or alarm in an economical 1/16 DIN case. Microprocessor based, all control functions are easily programmed from the waterproof, corrosion resistant front panel. Models are available that accept field selectable J, K, T, E or N type thermocouples or RTD 100Ω DIN (.00385 ohms/ohm/°C) inputs and provide SSR, Relay or 5 VDC Logic outputs. All models are programmable for on-off, P, PI, manual PID or automatic Self-Tune PID control. Like the control output, optional alarm is field configurable direct acting (cooling) or reverse acting (heating) and is easily adjusted for either automatic or manual reset to provide independent high or low system protection. Four security levels are password protected.