Review on Enhanced IEI Membrane Keypad for International Electronics by Irving Doster

As a result of using this product, I found that it was not durable enough for industrial and scientific applications. The keypad's quality was poor, and the buttons began to wear out after just a few months of use. Additionally, the keypad's construction was flimsy, and it did not hold up well under frequent use. Although the price was reasonable, I would not recommend this product for commercial access control in the long term. The only pro was the affordable price, but it was not worth the short lifespan of the product.