Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
SYSTEM SENSOR 2W-B Photoelectric Smoke Detector - Smoke Detectors
SYSTEM SENSORSmoke Detectors

SYSTEM SENSOR 2W-B Photoelectric Smoke Detector

The SYSTEM SENSOR 2W-B is a hardwired photoelectric smoke detector for 2-wire fire alarm systems, operating at 12/24V with an 85 dB @ 10 ft alarm and a green LED visual alert. It includes a mounting base and a test…

SKU 3G-OTH-546560

Also listed as: 2WB · 2W B

Brand
SYSTEM SENSOR
Item
2W-B Photoelectric Smoke Detector
Part Number
2W-B
Category
Smoke Detectors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

SYSTEM SENSOR
Manufacturer Part Number
2W-B
Type
Hardwired, Smoke Detector, Photoelectric, Hardwired
UNSPSC
46191501
Detects
Smoke
Includes
Mounting Base
Hush Mode
No
Standards
UL 268
Sensor Type
Photoelectric
Catalog Page
1761
Power Source
Hardwired
Volume Level
85 dB @ 10 ft
ADA Compliant
No
Compatible With
2 Wire Fire Alarm System
Country of Origin
Mexico (subject to change)
Operating Voltage
12/24V
Visual Alert Type
Green LED
Connectivity Broad
None
Battery Locking Pin
No
Battery Backup [NEW]
No
Backup Battery Broad DELETE AFTER PLAN
No

Technical Documents

(1)
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SYSTEM SENSOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SYSTEM SENSOR 2W-B is a hardwired photoelectric smoke detector for 2-wire fire alarm systems, operating at 12/24V with an 85 dB @ 10 ft alarm and a green LED visual alert. It includes a mounting base and a test button, complies with UL 268, and detects smoke without battery backup.

Frequently Asked Questions

What is the SYSTEM SENSOR 2W-B smoke detector used for?

The SYSTEM SENSOR 2W-B is a hardwired photoelectric smoke detector designed for 2-wire fire alarm systems in commercial and industrial buildings. It detects smoke using photoelectric sensing, sounds an 85 dB @ 10 ft alarm, and includes a green LED visual alert. 3G Electric supplies this detector globally.

What are the specifications of the SYSTEM SENSOR 2W-B?

The SYSTEM SENSOR 2W-B operates at 12/24V, uses photoelectric sensing, and produces an 85 dB @ 10 ft alarm. It includes a mounting base and test button, complies with UL 268, and has no battery backup. It is compatible with 2-wire fire alarm systems and features a green LED visual alert.

Where to buy the SYSTEM SENSOR 2W-B worldwide?

3G Electric supplies the SYSTEM SENSOR 2W-B smoke detector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this UL 268-compliant photoelectric detector.

How to install the SYSTEM SENSOR 2W-B smoke detector?

Install the SYSTEM SENSOR 2W-B by mounting the included base to a junction box, wiring it to a compatible 2-wire fire alarm system at 12/24V, and attaching the detector head. Always follow local codes and the manufacturer's manual. Test the unit using the test button after installation.

Not sure this is the right part? Photo-identify it→

SYSTEM SENSOR Products

3G Electric supplies SYSTEM SENSOR smoke detectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from SYSTEM SENSOR

View all SYSTEM SENSOR parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first