Danfoss Randall 103 Mechanical Programmer Timer – Unit Only Used and tested. The unit is fully working and keeps time accurately. ✅ Original Danfoss 103 model ✅ Rotary mechanical programmer with tappets ✅ Ideal for central heating or hot water systems ✅ Clear, simple operation Please note: 🔹 This listing is for the timer unit only 🔹 The clear front cover (dial lens) is missing 🔹 Fully functional, with all tappets present (A, B, ON/OFF) 🔹 Cosmetic condition as shown in photos A great replacement if your current unit is faulty but you still have the front cover.