Product Overview
The CA16 Modular Station Irrigation Controller is a professional-grade control device designed specifically to work seamlessly with solenoid valves in intelligent irrigation systems. Featuring a modular design concept, the base unit starts at 4 stations and can be flexibly expanded to 8, 12, or 16 stations via hot-swappable modules. Built on a 4-station base configuration, the CA16 comes equipped with a dedicated main valve/pump relay channel, delivering a reliable, high-efficiency automated control solution for medium-to-large irrigation applications including agricultural fields, greenhouses, landscape greening, and golf courses.

Key Advantages
- Modular & Flexible Expansion: Designed around a 4-station base unit, the CA16 allows users to flexibly configure 4, 8, 12, or 16 stations according to actual site requirements. From small courtyards to large farms, it delivers an exact match to prevent resource waste.
- Professional Solenoid Valve Control: Optimized specifically for solenoid valve control, supporting AC 220V/50Hz input and AC 24V/0.8A output. Includes pump-station linkage to automatically activate the water pump when solenoid valves open, ensuring coordinated system operation.
- Precision Irrigation Programming: Features 4 fully independent program groups, each allowing up to 8 start times. Individual station runtime is finely adjustable from 1 minute to 12 hours and 59 minutes. Irrigation schedules support weekly mode, odd/even day mode, and interval day mode (1–30 days) to meet diverse crop and seasonal demands.
- Smart Regulation & Water Efficiency: Features water budget adjustment ranging from 10% to 200%, compatibility with external rain sensors to automatically pause irrigation during rainfall, and optional Wi-Fi modules for remote monitoring and management.

Technical Specifications
| Item | Parameter |
| Model | CA16 |
| Control Stations | 4/8/12/16 Stations (Modular Expansion) |
| Input Voltage | AC 220V 50Hz |
| Output Voltage | AC 24V 0.8A |
| Program Groups | 4 Independent Programs |
| Station Runtime | 1 minute to 12 hours 59 minutes |
| Water Budgeting | 10% – 200% |
| Rain Sensor Support | Supported (Normally Closed Type) |
| Pump Linkage | Supported |
| Wi-Fi Module | Optional |
| Net Weight | 12.00 kg |
| Package Dimensions | 43 × 32 × 37.5 cm |

Applications
The CA16 modular controller is widely used in agricultural field irrigation, greenhouses, orchards, municipal landscaping, golf courses, public parks, and residential gardens. Whether integrated into drip, sprinkler, or micro-irrigation systems, the CA16 pairs perfectly with solenoid valves to achieve automated, intelligent, and precise irrigation management.

Quality Assurance
Manufactured using automated production techniques, the CA16 offers rock-solid reliability at a highly competitive price point. The enclosure features a waterproof design suitable for outdoor installation, alongside built-in battery backup to retain clock settings and programming during power outages.
Choose the CA16 modular controller to make your intelligent irrigation system more flexible, precise, and efficient!