Heating - Ventilating - Air Conditioning
Refrigeration and Process Control

+44 (0) 1282 433380



ALRE Controllers ETR, ITR, JDI, PTR

ETR 74 Universal Controller with Digital Indicator

ETR range (Industrial Technology)

ETR 74.1 and 74.2. Universal thermostat with remote sensor and digital indicator (one or two stage type). For the control and supervision of temperatures in liquid or gasiform media. Suited for surface installation in humid rooms. Sensors not included. All 57 sensors can be used. Control range 0..50 degrees C, 250V.

ETR 77 Universal Controller

ETR 77 range(Industrial Technology)

ETR77.008-5 to 77.804-5. Universal thermostat with remote sensor. Due to different sensor designs it is universally applicable for different tasks. A red LED indicates the heating condition. Sensors not included except for ETR77.804-5. Control range -50..100 degrees C, 250V.

ETR 78 Temperature Difference Controllers

ETR range (Industrial Technology)

ETR 78.005 and 78.006. Temperature difference thermostat with remote sensor, for the acquisition of temperature differentials between 2 independent NTC sensors. Mainly suited for use with solar heating systems for the triggering of the circulating pump. Sensors are not included, see all 5/25 sensors for type. Two sensors per device. Control ranges 0..95 degrees C, 250V.

ITR 79 Compact Controller

ITR range (Industrial Technology)

ITR79.402 to 79.811. Compact thermostats for installation in switch cabinets (on DIN rail) with remote sensor. For control and supervision of temperatures in halls, greenhouses and floor heating systems. Sensors not included except for ITR79.804,805 and 608. All sensors with 24 or 4 sensor types can be used. Control ranges -35..130 degrees C, switching capacity 24 - 250 V.

ITR 71 / JDI-1 and -10 Digital Controllers

ITR/JDI range (Industrial Technology)

ITR71.050 to 71.125 and JDI-1 and JDI-10. Digital thermostats with temperature adjustment via "turning knob" or "potentiometer" and DIN built in housing. For the control and supervision of temperatures existing in fluid or gasiform media. Sensors not included. All no. 51 sensor types can be used. Control ranges -40..125 degrees C, switching capacity 24 - 250V.

JDI -0 / -08 Digital Temperature Indicator

JDI range

JDI-0 and JDI-08. Digital temperature indicator with DIN built in housing. Can be used as a thermometer if applied in combination with a remote sensor. Sensors not included. Indication range -40..120 degrees C, 230V.