TWL Irrigation (formally Tonick Watering) was formed in 1996. Its irrigation products are used all over the world.
The famous Underhill watering accessory products are stocked by TWL: Hose nozzles, water removal hand pumps, fertiliser applicators, sprinkler audit kits, hole trimmers and many more.
An irrigation decoder / solenoid in one small package, “Decoder In A Solenoid”, (DIAS) is now available. This is not much bigger than a conventional solenoid but includes the lightning protected decoder as well. With a diagnostic multi-coloured LED and the elimination of two decoder solenoid waterproof joints, the DIAS is a significant improvement in classic decoder technology. Compatible with the popular signalling protocols and many common valve types.
Complementary to the decoder families, TWL offers a range of versatile irrigation controllers. From a simple low-cost, easy installation, stand-alone, wall mount, (TW-3) through to a full Internet irrigation controller with its own embedded web pages and open SCADA protocol (RM-2). Used for city-wide irrigation networks and big golf courses.
Multi-wire irrigation controllers and PLCs that want to offer decoders can benefit from an adaptor, the NOVO. This enables the multi-wire to become a two-wire decoder controller without massive development costs or technical risk.
For companies with their own controllers or PLC systems, but not yet with irrigation decoders, TWL offers a range of add-ons which can convert them to operate proven irrigation decoders. This avoids the technical risk and time-to-market in attempting in-house designs. These components range from a pre-programmed micro-controller and a reference design, up to ready-made interface cards, DIN rail mounting or Eurocard. The latter can communicate with the controller using a simple ASCII protocol, or Modbus RTU slave.
A decoder irrigation system has many advantages over satellite and multi-wire systems. Thanks to the quality of design and build embodied in Aquamonix and TWL irrigation decoders, unreliability and lightning damage are no longer a problem. All come with a 5-year warranty.