Herutu Electronics Corporation provides industrial wireless solutions for manufacturing sites: Pokayoke Tools (transmitter & receiver, pliers wrench, check pen), Wireless Call Systems (Andon), and Remote Control Systems.

Pokayoke Tools

Check Pen


Check Pen

Check Pen typey CP-03z

Check Pen typeyCP-03z

Length 170 mm (6.7")
* Using Pentel Paint Marker


The check pen is a tool that allows you to attach a transmitter to various pens for work confirmation.
The check pen has a built-in spring and switch inside, and when the transmitter is attached, it can transmit a signal when the pen is pressed. We offer products that are compatible with various brands of pens, such as Mitsubishi Pencil, Shachihata, Pentel, Pilot Corporation, etc.
The check pen can be used for pokayoke (mistake prevention) by pairing it with a receiver.


The following models do not include the transmitter. Please order the transmitter separately.

Type Product Number Pen Manufacturer
CP-02 PX-20
Mitsubishi Pencil
Magic Ink No.500 Teranishi Chemical Industry
Pilot Corporation
CP-03 MMP-20
CP-05 PX-21 Mitsubishi Pencil
CP-06 400FX Shachihata
CP-07 WBMK-M Pilot Corporation
CP-08 600 Alton
CP-11 K-177N Shachihata

* Other manufacturers and pens are also available. Please contact us.

Please feel free to contact us regarding product inquiries, opinions, or requests.

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