Float Switch Kit X-Series Kit 1: Automatic Refill Controller

(1 customer review)
Original price was: £54.99.Current price is: £49.99.

The Float Switch Kit X Series Kit 1 Automatic Refill Controller provides efficient and automatic water level regulation for containers, ensuring consistent refilling when necessary. It effortlessly maintains optimal water levels and prevents overflows due to its user-friendly design and dependable sensors. [video width="1280" height="720" mp4=""][/video]


Your Intelligent Solution for Hassle-free Tank Management.

The advanced Automatic Tank Refill Controller simplifies and improves water level maintenance in tanks, reservoirs, and liquid storage systems. Engineered with precision and reliability, the FK-X1D1 ensures consistent water supply, preventing overflow and dry runs with ease.


  • Automatic Refill Control:   Automatically monitors and maintains optimal water levels, eliminating the need for manual intervention.
  • Reliable Performance: We build the system with high-quality components for durability and long-lasting performance, ensuring your system runs smoothly.
  • Easy Installation:
    Easy Installation: With its user-friendly design, it’s quick and straightforward for beginners and professionals alike.
  • Versatile Compatibility: It is compatible with a variety of tank and reservoir types. It is a versatile addition to any water management system.
  • Energy Efficient: Its design ensures minimal power consumption and reliable performance, thereby reducing your energy costs.

Optimize your water management today! Get your FLOAT KIT-1 FK-X1D1 Automatic Tank Refill Controller. Order now and experience the convenience and reliability of automated tank control!

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  • Consistent Water Levels:   Never again worry about overflow or dry tanks. The FK-X1D1 ensures your tanks are always at optimal levels.
  • Reduced Maintenance:   Decrease the amount of time spent manually inspecting and replenishing tanks. Let the FK-X1D1 do it for you.
  • Cost Savings:   Avoid water waste and potential damage to pumps caused by dry runs. This saves you money on repairs and replacements.
  • Peace of mind:   Reliable and automatic control gives you confidence that your water system is functioning efficiently and effectively.


Residential Water Tanks:    Keep your home’s water supply stable and reliable.
>Agricultural Systems:    Ensure your crops and livestock have a consistent water supply.
>Industrial Use:    Ideal for industrial applications requiring precise water level management.

>Aquariums and Fish Farms: Ensure that the water levels are optimal for aquatic life.

Why Choose the Automatic Tank Refill Controller (FK-X1D1)?

The FLOAT KIT-1 FK-X1D1 stands out with its blend of advanced technology, ease of use, and reliable performance. Exceeds expectations for residential, agricultural, or industrial water systems. Meet all your needs effortlessly.  Choose the FK-X1D1 for a smart, efficient, and dependable solution to your water management challenges.


1 circuit board, 2 float switches, 4 Self-adhesive feet, and 1 Instruction Manual .(May include mini slotted screw driver depending on the batch assembly)


Datasheet, Instructions & Specification: IACS FK-X Series Datasheet

Program Guide and Information: FK-X Series Program Guide

Product Specifications for Automatic Tank Refill Controller


Board Input Voltage OptionsOperates within a range of 9 to 14.5 V DC* extendable with the use of power converter. May run on mains voltage  110V or 240V AC. compatible with Lead-acid, leisure batteries, or PSU connections.
Float Switch PowerSupports input voltage equivalent to or lower than the board’s input voltage, with a safe current range of 5-25mA, ensuring enhanced safety, especially near water sources.
Switching FormSingle Pole Double Throw (SPDT) with terminals for Normally Open (NO), Common (COM), and Normally Closed (NC) configurations.
Switching Power (Amps)Up to 30 amps continuous for Normally Open (30A) at 250V AC or 30V DC. 25 amps for Normally Closed (NC).
Switch Response Time (ms)Immediate detection of float switch changes with response times ranging from 1 to 16 milliseconds for relay activation or state changes.
General FeaturesInput polarity protection, flywheel functionality, optically isolated float switch logic inputs for added safety, high-quality LEDs indicating float and power states. Safe operation ensured with low voltage (<5V) passing through the float switch.
Compatible withStandalone functionality; custom wiring possible with safety precautions.
Special FeaturesIntelligent programming enables dynamic response based on float switch states rather than relying solely on timers or interrupts.
Suggested UsesIdeal for alarm systems, lighting controls, security setups, agricultural equipment, water storage (e.g., tanks, butts), recreational vehicles, and various liquid management systems.
Dimensions (L x W x H)Dimensions of 8 cm x 5 cm x 2.5 cm, including a 7 cm board with screw terminals extending 10 mm, facilitating easy installation and integration.


PCB TypeIndustrial Grade FR-4, resistant to flexing and corrosion.
Surface TreatmentsLead-Free HASL (RoHS compliant) or ‘ENIG’ for special batches, with a protective silicone-based coating to reduce moisture inhibition and corrosion.
Place of ManufactureHand-assembled and quality tested in England.
Quality ControlMeets CE, EMC, IEC 6100-6-1, 6100-6-3 standards, RoHS, WEEE (Compliance Number WEE/FK 2902 UZ), and IMS115.
Safety NoticesHandle high voltages with care and isolate the unit before touching it; and mount the board in a waterproof housing.
QuantityThis listing is for one unit unless otherwise stated. Colors may vary by variant. Photos are for illustrative purposes only.
Datasheet LocationAvailable via links at the top of the page.
Manufacturer’s WebsiteVisit for more information.
CustomisationThe program can be customised (additional costs may apply).
Product ClassificationTypically dispatched within 72 hours, subject to component availability and order size.

Additional information

Weight200 g

1 review for Float Switch Kit X-Series Kit 1: Automatic Refill Controller

  1. Joe Al

    Fast transaction. They are very helpful in assisting me in my installation. 5he product is functioning well as expected of its description. Really reliable. It does its work well. No worries of overflowing.

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