A practical, ready-to-use solution to manage irrigating the most common gardens (up to about 700 sq.m.) Hydro-4 is a valve box with IP68 rating, containing a battery water timer and 4 solenoid valves. Preassembled valve box incorporating 4 solenoid and a timer. Power provided by two 1.5 V AAA batteries, enough to last an entire season. On/off control for up to 4 independent underground or drip irrigation lines. Easy programming procedure, using just 3 buttons and a large size display. Watering time 1 to 60 minutes. 2 programs for each outlet, up to 8 watering cycles per day. Weekly setting, allowing exclusion of single days. Manual test of 5 minutes duration, variable in the same way as for watering times. A perfectly sealed IP 68 unit. Protective cover and buttons in bi-material rubber. Facility of viewing and deleting programs entered for each line. 3/4 M (20-27 mm) connections on both inlet and outlet sides. Wireless connection to radio frequency Rain Sensor. 5 threaded caps prov