Underhill TW-TK-DEC-1 Single-Station 2-Wire Decoder for ICC

Compact, field‑programmable single‑station decoder engineered for 2‑wire irrigation systems. The TW‑TK‑DEC‑1 from Underhill provides reliable, waterproof operation for remote valve control and is configured to work with Hunter ICC controllers and other compatible 2‑wire hosts.

• Single‑station control: Controls one station and supports up to two solenoids per station for dual‑valve zones.
• Field programmable: Set station addresses on site using the Underhill DEC‑PROG portable programmer for quick configuration.
• Waterproof, durable build: IP68‑rated enclosure protects electronics from moisture and outdoor conditions for long service life.
• No decoder grounding required: Simplifies installation — ensure a proper controller ground only.
• Includes DBY connectors: Supplied with four DBY waterproof connectors for secure solenoid connections.
• Wiring & electrical specs: Compatible with 18–12 AWG wiring; 22–32V supply range; maximum continuous 2‑wire current ~1.1 A; follow manual for maximum run distances by gauge.

Ideal for new installations or retrofits, the TW‑TK‑DEC‑1 reduces trenching and simplifies wiring by converting conventional valve outputs to decoder‑based 2‑wire control. Always verify controller compatibility and address limits before installation and consult the Underhill manual for transformer, wiring distance charts, and programming steps.