Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd. is a leading manufacturer and supplier of explosion-proof communication equipment in China. Our latest product, the 4 By 4 Keypad, is designed to provide secure and reliable access control in hazardous environments. This keypad is made of high-quality materials and has a rugged construction that can withstand harsh conditions. It features four rows of four buttons each, making it ideal for use in applications that require multiple code combinations for access control. Whether it is for industrial facilities, hazardous areas, or other high-risk environments, this 4 By 4 Keypad is an excellent choice. Our factory is fully equipped to handle bulk orders, ensuring prompt delivery to our customers. With our commitment to quality and customer satisfaction, you can trust in our products and services. We take pride in our innovative designs, and our 4 By 4 Keypad is no exception, providing users with a reliable and secure solution for access control. Contact us today to learn more about our products and how they can help improve safety in your workspace.