Size: 95mm wide x 161mm high x 59mm deep

Temperature Differential: Continually adjustable between 0.1 to 1.2 degree's centigrade, giving a maximum temperature spread

of 2.4 degree's centigrade

The Differential Adjustment: Is effected by the large Pre-Set on the circuit board

The Electronic Circuit: Is isolated from the AC mains supply by a miniature low voltage transformer with the negative rail of the

rectified low voltage tied to the earth terminal. The unit also incorporates a 24v 500ma transformer to enable switching of 24v solenoid valves

Output Switching: Is effected by a 15amp single pole change over relay with volt free contacts, giving easy switching of rising or falling temperatures

The Encapsulated Probe: May be immersed in water, for the accurate control of aquaria, swimming pools or photographic baths etc. One side of the probe is

tied to earth potential with a maximum voltage across the probe of 3v. The probe may be connected either way around as it is not polarity

sensitive. Probes are supplied in standard lengths of 10 and 30 metres, other lengths are available to order up to a maximum in one piece

of 100 metres