PR-3 three channel programmer with blue backlit digital display, 24 hour, 7 day or 5/2 day program, 3 ON/OFF per day, room temperature visible, advance, up to 9 hour override, holiday and frost protect functions, automatic GMT/BST change and memory back up (CR2032 battery supplied). Controls two heating zones and hot water independently in a central heating system.

Power supply: 230 V, 50 Hz

Contacts/rating: SPDT 3 (1) A resistive 230 V AC

Ambient temp. range: 0 to 50°C

Dimensions: H 91 x W 148 x D 40 mm