Circuit Design, Inc. Official site

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Various contact points and remote control products for circuit design.

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Various contact points and remote control products for circuit design.

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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.

List of Remote Control Products

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

OTHER

Please contact us.

Model number/Brand name

Various connectors and remote control products

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

PRODUCT

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

PRODUCT

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

PRODUCT

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

PRODUCT

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426MHz Band Telecontrol System KST426W / KSR426W

PRODUCT

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

PRODUCT

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Distributors

Circuit Design, Inc.
Circuit Design, Inc.
Official site
Phone number/address

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.

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