You have no items in your shopping cart.

Call for Sales or Support:


Monday-Friday 8AM-8PM EST

Siemens HTRI-S Intelligent Single Input Interface Module

13 in stock
90 Days
- +

Product Description

Siemens' HTRI-S Intelligent Interface Module is designed to provide the means of interfacing direct shorting devices to the FireFinder XLS and FS-250 Fire Alarm Control Panel loop circuit.

Fully compatible on the same FireFinder XLS and FS-250 circuits with all intelligent H-Series detectors, HMS Series addressable manual stations, or any other addressable intelligent modules, such as Model HZM or Model HCP.
Please note: All parts should be installed and tested by a certified fire alarm company.

Questions (3)

What is the difference between model HTRI-D and model HTRI-S?
The Model HTRI-D is a dual-input module that is designed to supervise and monitor two (2) sets of dry contacts while only requiring one (1) address, but responds independently to each input. It is ideal for monitoring a waterflow switch and its respective valve tamper switch.
Model HTRI-S can only monitor and report the status of the contact.
What if I need to return this?
All products are covered by our 90-day warranty and come with a prepaid UPS return label and RMA form. Returning products has never been this easy.
What if I need support?
Our friendly team is on hand with expert advice and assistance. Contact us Mon-Fri 8am-8pm by phone (888.303.2656), by email ( or using our online chat. Responses within 1 business day (if not sooner!)