Certainly! Considering your current setup, both the 40/40C-I and 40/40D-I are excellent replacements for the Spectrex 40/40I-112SF. The 40/40C-I is known for its reliability and ease of installation, making it a popular choice among our customers. On the other hand, the 40/40D-I offers advanced features like higher sensitivity, ensuring accurate and quick detection.
I would recommend assessing your specific requirements. If you prioritize straightforward installation and standard detection, the 40/40C-I would be a solid choice. However, if you need enhanced sensitivity and more advanced detection capabilities, the 40/40D-I might be the better option for your application.
Feel free to reach out if you have any more specific questions about your installation or any other fire alarm needs!