(888) 497-0290
BLOG
CONTACT
FORUM
FIRE +

Categories

Siemens

Siemens OP121 Conventional Photoelectric Smoke Detector

Siemens OP121 Conventional Photoelectric Smoke Detector

Mfr. Part #: OP121
SKU: 4601
Availability:
In Stock
Ships in 8 business days

$67.76

Add to cart
Siemens DB-11 Low-Profile Surface-Mount Base

Siemens DB-11 Low-Profile Surface-Mount Base

Mfr. Part #: DB-11
SKU: 4607
Availability:
In Stock
Ships in 5 business days

$14.16

Add to cart
Siemens FDO421 Addressable Photoelectric Smoke Detector

Siemens FDO421 Addressable Photoelectric Smoke Detector

Mfr. Part #: FDO421
SKU: 37012
Availability:
In Stock
Ships in 3 business days

$134.41

Add to cart
Siemens 100-115588 Capacitor 50uF, 50V

Siemens 100-115588 Capacitor 50uF, 50V

Mfr. Part #: 100-115588
SKU: 116782
Availability:
In Stock
Ships in 3 business days

$2.90

Add to cart
Siemens OOHC941 Fire/CO Detector with Thermal Sensor

Siemens OOHC941 Fire/CO Detector with Thermal Sensor

Mfr. Part #: OOHC941
SKU: 63542
Availability:
In Stock
Ships in 3 business days

$251.67

Add to cart
Siemens FDOT421 Addressable Multi-Criteria Fire Detector

Siemens FDOT421 Addressable Multi-Criteria Fire Detector

Mfr. Part #: FDOT421
SKU: 63313
Availability:
Limited Stock
Ships in 3 business days

$142.99

Add to cart
Siemens OP921 Photoelectric Smoke Detector with ISOtechnology

Siemens OP921 Photoelectric Smoke Detector with ISOtechnology

Mfr. Part #: OP921
SKU: 50096
Availability:
In Stock
Ships in 5 business days

$61.92

Add to cart
Siemens FDOOTC441 Multi-Criteria Fire/CO Detector

Siemens FDOOTC441 Multi-Criteria Fire/CO Detector

Mfr. Part #: FDOOTC441
SKU: 54963
Availability:
In Stock
Ships in 5 business days

$330.69

Add to cart
Siemens FP-11 Addressable FirePrint Detector

Siemens FP-11 Addressable FirePrint Detector

Mfr. Part #: FP-11
SKU: 4604
Availability:
Currently Unavailable

Read more
Siemens SL2SPBB-R Back Box, Wall Mount, Red, No Strobe

Siemens SL2SPBB-R Back Box, Wall Mount, Red, No Strobe

Mfr. Part #: SL2SPBB-R
SKU: 201471
Availability:
On Backorder

$24.74

Add to cart
Siemens ABHW-4S Audible (Sounder) Base for Sleeping Areas

Siemens ABHW-4S Audible (Sounder) Base for Sleeping Areas

Mfr. Part #: ABHW-4S
SKU: 72162
Availability:
In Stock
Ships in 3 business days

$115.82

Add to cart
Siemens XTRI-M Class X Mini Input Module

Siemens XTRI-M Class X Mini Input Module

Mfr. Part #: XTRI-M
SKU: 67875
Availability:
In Stock
Ships in 3 business days

$118.58

Add to cart

Stay Informed of Fire Safety News

Subscribe for timely updates on industry regulations, technology innovations, and practical guides tailored for busy professionals.

Follow Us On Social Media

Instagram Linkedin Facebook Youtube

Need Assistance?
We're Here To Answer Your Questions.

Need Assistance?
We're here to help.

Monday to Thursday: 8 AM – 7 PM (EST)
Friday: 8 AM – 5 PM (EST)

(888) 497-0290
[email protected]
[email protected]
[email protected]

Shop All Products

Shop by Category

Shop by Brands

WSA

Sell on FireAlarm.com

Installation & Services

Blog

Forum

FireAlarm.com +

Emergency Services

Maintenance & Inspection Services

Consulting & Professional Services

Design & Build Services

Our Company

Our Values

Our Client List

Worldwide

Contact page

Privacy Policy & Terms of Use

Refund Policy

Help

About

Our Company

Our Values

Our Client List

Our Brands

Worldwide

Contact Us

Policies

Privacy Policy & Terms of Use

Refund Policy

Help

Services

Emergency Services

Maintenance & Inspection Services

Consulting & Professional Services

Design & Build Services

Products

Shop All Products

Shop by Category

Shop by Brands

Partnership Opportunities

Sell on FireAlarm.com

Installation & Services

Media

Blog

Forum

WSA USA Electrical Supplies

FireAlarm.com +

Copyright 2025 © FireAlarm.com | All Rights Reserved