Gardena Controller for Watering Valves - Gardena 1250-20 Ref: GRD1250-20 For controlling the GARDENA Watering Valves. GARDENA Soil Moisture Sensor or Rain Sensor can be connected. Approx. 1 year operating life with 1 x 9 V alkaline battery (not included). 4-colour display carton. List price £26.99 Grovelands Online price in Price: £24.30 (Including VAT at 17.5%)