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  6. Various contact points and remote control products for circuit design.

Various contact points and remote control products for circuit design.

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Various connectors and remote control products

last updated:Aug 19, 2026

Circuit Design, Inc.
Circuit Design, Inc.
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Our contact points and remote controls are available in a variety of options to suit customer needs, including ON/OFF switching and ON while pressed.

We offer a variety of wireless remote control products tailored to your usage needs. - KST426W/KSR426W-A Usable for ON/OFF switching purposes. Designed to enhance waterproofing and durability for industrial applications. Compatible with 2 to 4 button remotes. - KST2.4W/KSR2.4 Usable for purposes where it is ON while pressed. Designed to enhance waterproofing and durability for industrial applications. Compatible with 2 to 4 button remotes. - WT-01/WT-02/WR-01A Usable for ON/OFF switching purposes. Supports everyday waterproofing and is compatible with 1 or 2 buttons. - NT-4/NR-1 Usable for purposes where it is ON while pressed. Compact remote that can be carried in a pocket. Compatible with 3, 4, or 6 contacts. - RT-3B/RT-4B/RR-1A Usable for ON/OFF switching purposes. Designed for simple remote control applications. Compatible with 3 or 4 buttons. In addition to the above remote control products, we also handle various products compatible with harnesses and terminal blocks for different contact communications. Please feel free to contact us for assistance in selecting models.

    Remote ControlcontrollerCommunications
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Various contact points and remote control products for circuit design.

ks426.jpeg WT:WRシリーズ.png ntnr.jpeg rtrr.jpeg
  • List of Remote Control Products
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basic information

【Light Industry Remote Control】 KST426W/KSR426W-A  426MHz Band  2, 3, 4 Buttons  Equivalent to IP55  Communication Distance Estimate: Up to 400m 【Light Industry Remote Control】 KST2.4W/KSR2.4  2.4GHz Band Frequency Hopping Method  2, 3, 4 Buttons  Equivalent to IP55  Communication Distance Estimate: Up to 100m 【Specific Low Power Wireless Remote Control】 WT-01/WT-02/WR-01A  426MHz Band  1 or 2 Buttons  Water Resistant for Daily Life  Communication Distance Estimate: Up to 300m 【Low Power Wireless Remote Control】 NT-4/NR-1  2.4GHz Band Frequency Hopping Method  Supports 3, 4, 6 Contacts  Water Resistant for Daily Life  Communication Distance Estimate: Up to 100m 【Specific Low Power Wireless Remote Control】 RT-3B/RT-4B/RR-1A  315MHz Band  3 or 4 Buttons  Non-Waterproof  Communication Distance Estimate: Up to 50m

Price range

P2

Delivery Time

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Applications/Examples of results

【Light Industry Remote Control】 KST426W/KSR426W-A Remote control for construction, civil engineering, forestry machinery, etc. Remote control for traffic lights used in road construction Remote operation of agricultural machinery Remote control for electric shutters, electric blinds, garage doors, etc. Rotating lights, alarm devices Calling devices 【Light Industry Remote Control】 KST2.4W/KSR2.4 Control of truck loaders Control of civil engineering and agricultural machinery Remote control for welfare equipment 【Specific Low Power Wireless Remote Control】 WT-01/WT-02/WR-01A Remote control for electric shutters, electric blinds, garage doors, etc. Rotating lights, alarm devices Calling devices Signal lights for construction and factory use 【Low Power Wireless Remote Control】 NT-4/NR-1 Rear gate lifting and opening/closing device for trucks, etc. Lifting and storing device for electric lifts in welfare vehicles, etc. Opening and closing device for electric garages (shutters) 【Specific Low Power Wireless Remote Control】 RT-3B/RT-4B/RR-1A Control of lighting equipment Operation of curtain opening and closing Operation of automatic shutter opening and closing

catalog(6)

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426MHz Specific Low Power Telecommunication System WT-01 / WT-02 / WR-01

426MHz Specific Low Power Telecommunication System WT-01 / WT-02 / WR-01

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315MHz Band Telecontrol System RT-3B / RT-4B / RR-1A

315MHz Band Telecontrol System RT-3B / RT-4B / RR-1A

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2.4GHz Band Wireless Remote Control System KST2.4W/KSR2.4

2.4GHz Band Wireless Remote Control System KST2.4W/KSR2.4

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2.4GHz Band Wireless Remote Control System KST2.4W/KSR2.4RY

2.4GHz Band Wireless Remote Control System KST2.4W/KSR2.4RY

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426MHz Band Telecontrol System KST426W / KSR426W

426MHz Band Telecontrol System KST426W / KSR426W

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2.4GHz Wireless Remote Control System NT-4 / NR-1

2.4GHz Wireless Remote Control System NT-4 / NR-1

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Company information

Circuit

Circuit Design, Inc.

Industrial Electrical Equipment

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We specialize in the design and manufacture of Specific Low-Power Radio (SLPR) equipment—a solution distinct from general wireless offerings. Our focus is on high-reliability wireless systems for industrial and professional applications that demand advanced stability and dependability, operable without complex licensing procedures. Our mission is to ensure unwavering wireless connectivity for your products. Our versatile radio modules and remote controls are widely adopted in fields where long-term stable operation and noise immunity are essential, including medical devices, security systems, and infrastructure monitoring. We apply strict quality control standards from the initial planning stages, providing highly durable wireless communication devices that comply fully with domestic radio regulations.

Product/Service List (458)

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