The unit is designed for testing the operation of Infra-red fire detection equipment by simulating abnormal temperature targets entering the field of view, and is fitted with four ball type castors in order that it may be readily moved on a 'test bed or 'on site' target path.
Various controls are fitted to the device as follows :-
Coarse thermostat with combined on/off switch.
Fine thermostat (+/- 5 deg.C control about set point).
Power regulator - Controls “Over Shoot” due to thermal mass.
Thermo-couples and associated connectors - K Type - 3 off 
 
The temperature of the platen can be set in the range 100 to 250 deg.C