General features: 

External dimensions: 120 x 90 x 28 mm 
Touch-screen display 80 x 55 mm (3.8") 
Weekly programming for periods of at least 30 minutes. 
Temperatures can be adjusted on 3 levels: - Comfort (sun symbol)
- Energy saving (moon symbol) 
- Off (prohibition symbol) with the option of setting the anti-freeze protection. 
Temperature adjustment range from 4 to 40 °C (from 40 to 99.4 °F), with 0.5 °C intervals. 
System on/off differential, 0.5 °C (can be adjusted) 
Summer/Winter function 
Operating and storage temperature between 0 and 40 °C 
Fitted with reminder alarm 
Partially recessed (230 V mode) or covered fastening (battery mod.) in a standard 503 box 

Electrical data - version with battery power supply 
Power supply with 2 alkaline batteries AAA - LR3 - 1.5 V 
Protection rating: IP20 
System activation contact: relay with 1 free deviation contact 
6-230 V - 5 (0.5) A max 

Electrical data - version with 230 V power supply 
Power supply from 110 to 230 V - 50/60 Hz 
Protection rating: IP20 
System activation contact: relay with 1 free deviation contact 
6-230 V - 5 (0.5) A max