Circuit Design, Inc. List of Products and Services

The KST426W and KSR426(W) are products born from customer requests. Our customers often use them for industrial applications, so we have enhanced their waterproofing and robustness to be suitable for industrial use, and we have ensured a button size and communication reliability that supports a Hamming distance of 6. A buzzer sounds according to the button pressed. The control units are compatible with 9V and 12V systems. The communication range is 300 to 400 meters in line of sight. Since it has obtained the technical conformity mark, it can be used without any licensing procedures. The term "light industry" is named to indicate that it does not reach the level of telecommunication devices used in heavy machinery, but is designed to be used in somewhat harsh environments as a product for general industrial applications. It is aimed at civil engineering, construction, vehicles, welfare, agriculture, and more. It is intended for applications where multiple remote controls switch ON/OFF, such as switching displays (controlling multiple control units with one remote control). Wireless remote controls: KST426W-2 (2 buttons), KST426W-3 (3 buttons), KST426W-4 (4 buttons) Control units (receivers): KSR426W (waterproof), KSR426 (non-waterproof)

The KST2.4W and KSR2.4/KSR2.4RY are products born from customer requests. Our customers often use them for industrial applications, so we have enhanced their waterproofing and robustness to suit industrial use, and ensured reliability in communication by supporting a Hamming distance of 6. Additionally, a buzzer sounds according to the button pressed, and the link status can be confirmed via an LED. To allow multiple systems to operate in the same area, we have adopted our unique frequency hopping technology, enabling simultaneous operation of over 10 sets. The control units are compatible with 9V, 12V, and 24V systems, and the communication range is approximately 100 meters in line of sight. The product has obtained the Technical Compliance Mark and can be used without any licensing procedures. The term "light industry" is named with the assumption that it can be used in somewhat harsh environments as a general-purpose industrial product, targeting civil engineering, construction, vehicles, welfare, agriculture, and more. It is intended for applications requiring continuous control, such as operating a motor while a button is pressed. Wireless remote controls: KST2.4W-2 (2 buttons), KST2.4W-3 (3 buttons), KST2.4W-4 (4 buttons) Input unit: KST2.4S Control units (receivers): KSR2.4, KSR2.4RY (relay type)

The "KST426W-2" is a two-contact waterproof remote control that does not require a radio station license with a technical compliance mark. Designed for "light industrial" applications, it enables easy wireless communication even in harsh environments such as civil engineering, construction, vehicles, welfare, and agriculture. To ensure safe use in tough conditions like outdoor work, its robustness and waterproofing have been enhanced, allowing for reliable long-distance communication developed through our wireless technology. It can be utilized as a highly reliable telecommunication system for various industrial applications including civil engineering, construction, vehicles, and agriculture. 【Features】 ■ ARIB STD-T67 construction design certification obtained ■ Communication distance is approximately 300 to 400 meters in line of sight ■ Can transmit approximately 50,000 times using two AA batteries ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KST426W-3" is a three-point waterproof remote control that does not require a radio station license with a technical compliance mark. Designed for "light industry" applications, it can easily be wireless in harsh environments such as civil engineering, construction, vehicles, welfare, and agriculture. To ensure safe use in tough environments like outdoor work, its robustness and waterproofing have been enhanced, enabling reliable long-distance communication developed through our wireless technology. It can be utilized as a highly reliable telecommunication system for various industrial applications such as civil engineering, construction, vehicles, and agriculture. 【Features】 ■ ARIB STD-T67 construction design certification obtained ■ Communication distance is approximately 300 to 400 meters in line of sight ■ Can transmit about 50,000 times using two AA batteries ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KST426W-4" is a waterproof remote control with four contacts that has obtained the technical compliance mark and does not require a radio station license. Designed for "light industry" applications, it can easily be wireless in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. To ensure safe use in harsh environments like outdoor work, its robustness and waterproofing have been enhanced, enabling reliable long-distance communication developed through our wireless technology. It can be utilized as a highly reliable telecommunication system for various industrial applications including civil engineering, construction, vehicles, and agriculture. 【Features】 ■ ARIB STD-T67 construction design certification obtained ■ Communication distance is approximately 300 to 400 meters in line of sight ■ Can transmit approximately 50,000 times using two AA batteries ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KSR426W-A" is a waterproof output unit equipped with four control outputs and four selectable output modes according to application. It is the successor to the KSR426W and now supports the highly requested DC 24V. Designed for "light industrial" applications, it enables easy wireless implementation even in harsh environments such as civil engineering, construction, vehicles, welfare, and agriculture. To ensure safe use in challenging environments like outdoor work, its robustness and waterproofing have been enhanced, allowing for reliable long-distance communication developed through our wireless technology. It can be utilized as a highly reliable telecommunication system for various industrial applications, including civil engineering, construction, vehicles, welfare, and agriculture. 【Features】 ■ PhotoMOS relay (4 outputs) 　Each output: up to 48V, 100 mA (DC) ■ Communication distance is approximately 300 to 400m in line of sight ■ Up to 100 transmitters can be registered ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KST2.4W-2" is a small power wireless remote control with two contacts that can be used immediately without a license in the 2.4GHz band, featuring a technical compliance mark. It allows for safe and easy remote operation of wing vehicle openings and closings, loader slides, winch lifting, and more. Additionally, it can be used for lifting and lowering in welfare vehicles. Being wireless, it enables safe operation while confirming the surrounding situation when getting in and out of the vehicle. It also features dustproof and waterproof specifications, with button sizes (12mm in diameter) that are easy to press even while wearing gloves, making it reliable for use on construction sites or in rainy conditions. Thanks to its unique frequency hopping protocol, it minimizes radio interference even when multiple sets are used simultaneously, ensuring stable communication. It also has a LINK output display, allowing constant monitoring of the communication status between the remote control and the control device. 【Features】 - Unique hopping technology minimizes radio interference. - Operable from a distance, with a range of approximately 100m (line of sight). - Stable operation for up to 150 hours with two AA batteries. - Dustproof and waterproof performance equivalent to IP55, making it suitable for outdoor use. *You can purchase directly from the related link. Orders starting from one unit are also welcome!

The "KST2.4W-3" is a three-point waterproof remote control that does not require a radio station license with a technical compliance mark in the 2.4GHz band. Designed for "light industry" applications, it can easily achieve wireless functionality even in harsh environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, it allows simultaneous control of multiple systems within the same area without the need to be aware of the wireless frequency channels. Additionally, it is equipped with a LINK output display, enabling constant monitoring of the communication status between the operator and the controller. 【Features】 ■ Complies with ARIB STD-T66 second generation low-power data communication system ■ Communication distance is approximately 100m in line of sight ■ Uses two AA batteries for a continuous operation of 150 hours ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KST2.4W-4" is a waterproof remote control with 4 contacts that does not require a radio station license with a technical conformity mark in the 2.4GHz band. Designed for "light industry" applications, it can easily achieve wireless functionality even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, it allows simultaneous control of multiple systems within the same area without the need to be aware of the wireless frequency channels. Additionally, it features a LINK output display, enabling constant monitoring of the communication status between the operator and the control unit. 【Features】 ■ Complies with ARIB STD-T66 second generation low power data communication system ■ Communication distance is approximately 100m in line of sight ■ Uses two AA batteries for a continuous operation of 150 hours ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KSR2.4RY" is an output unit that can output 1 to 4 contact points without the need for a radio station license with a technical conformity mark in the 2.4GHz band. Designed for "light industry" applications, it can easily achieve wireless communication even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, multiple systems can be controlled simultaneously within the same area without being aware of the wireless frequency channels. Additionally, it is equipped with a LINK output indicator, allowing for constant monitoring of the communication status between the operation device and the control device. It supports output of contact information for up to 4 systems and is equipped with a relay, enabling direct control of solenoids and other devices (inductive load up to 2A). 【Features】 ■ Compliant with ARIB STD-T66 second-generation low-power data communication system ■ Equipped with a relay for inductive loads up to 2A ■ Communication distance is approximately 100m in line of sight ■ Communication status can be confirmed via LINK indicator ■ Achieves a Hamming distance of 6 to ensure safety It can be used in combination with KST2.4W-2, KST2.4W-3, KST2.4W-4, and KST2.4S. *For more details, please refer to the related links or feel free to contact us.

The "KSR2.4" is an output unit capable of 1 to 6 contact outputs that does not require a wireless station license and comes with a technical compliance mark. Designed for "light industry" applications, it can easily achieve wireless communication even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, multiple systems can be controlled simultaneously within the same area without being aware of the wireless frequency channels. Additionally, it features a LINK output indicator that allows for constant monitoring of the communication status between the operation device and the control device. 【Features】 ■ Compliant with ARIB STD-T66 second generation low-power data communication system ■ Communication distance is approximately 100m in line of sight ■ Communication status can be confirmed via LINK indicator ■ Achieves a Hamming distance of 6 for safety assurance It can be used in combination with KST2.4W-2, KST2.4W-3, KST2.4W-4, and KST2.4S. *For more details, please refer to the related links or feel free to contact us.

The "KST2.4S" is an input unit that allows for 6 contact inputs without the need for a radio station license with a technical compliance mark in the 2.4GHz band. Designed for "light industrial" applications, it enables easy wireless implementation even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. Thanks to its unique frequency hopping protocol, multiple systems can be simultaneously controlled within the same area without needing to be aware of the wireless frequency channels. Additionally, it features a LINK output display, allowing for constant monitoring of the communication status between the operator and the control unit. 【Features】 ■ Compliant with ARIB STD-T66 second-generation low-power data communication system ■ Communication distance of approximately 100m in line of sight ■ Up to 6 contact inputs ■ Communication status can be checked via LINK indicator ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The KST2.4W and KSR2.4/KSR2.4RY are wireless remote controls developed in response to customer requests. Our customers often use them for industrial applications, so we have enhanced their waterproofing and robustness to suit industrial use, while ensuring they are easy to hold and maintain a communication reliability with a Hamming distance of 6. A buzzer sounds according to the button pressed, and the link status can be confirmed via an LED. To allow multiple systems to operate in the same area, we have adopted our unique frequency hopping technology, enabling simultaneous operation of over 10 sets. The control units are compatible with 9V, 12V, and 24V systems, with a communication range of approximately 100 meters in line of sight. The product has obtained the Technical Conformity Mark and can be used without any licensing procedures. The term "light industry" is named with the assumption that it can be used in somewhat harsh environments as a general-purpose industrial product. It can be used as a handy remote control in applications such as civil engineering, construction, vehicles, welfare, and agriculture. Continuous control is possible, allowing the motor to operate while the button is pressed. Wireless remote controls: KST2.4W-2 (2 buttons), KST2.4W-3 (3 buttons), KST2.4W-4 (4 buttons) Input unit: KST2.4S Control units: KSR2.4, KSR2.4RY (relay type)

The KSR426 is an output unit equipped with four control outputs and four selectable output modes based on application needs. Designed for "light industry" applications, it enables easy wireless functionality even in harsh environments such as civil engineering, construction, vehicles, welfare, and agriculture. To ensure safe use in tough conditions like outdoor work, it has enhanced robustness and waterproofing, allowing for reliable long-distance communication developed through our wireless technology. It can be utilized as a highly reliable telecommunication system for various industrial applications including civil engineering, construction, vehicles, and agriculture. 【Features】 ■ PhotoMOS relay (4 outputs) 　Each output: Max 48V, 100 mA (DC) ■ Communication distance of approximately 300 to 400m in line of sight ■ Up to 100 transmitters can be registered ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.

The "KSR426W" is a waterproof output unit equipped with four control outputs and four selectable output modes depending on the application. Designed for "light industry" applications, it can easily be wireless-enabled even in harsh usage environments such as civil engineering, construction, vehicles, welfare, and agriculture. To ensure safe use in tough environments like outdoor work, its robustness and waterproofing have been enhanced, enabling reliable long-distance communication developed through our wireless technology. It can be utilized as a highly reliable telecommunication system for various industrial applications such as civil engineering, construction, vehicles, and agriculture. 【Features】 ■ PhotoMOS relay (4 outputs) 　Each output: Maximum 48V, 100 mA (DC) ■ Communication distance is approximately 300 to 400m in line of sight ■ Up to 100 transmitters can be registered ■ Achieves a Hamming distance of 6 to ensure safety *For more details, please refer to the related links or feel free to contact us.