---
product_id: 446553578
title: "System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector"
brand: "system sensor"
price: "HK$1343"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/446553578-system-sensor-2w-b-i3-series-2-wire-photoelectric-i3
store_origin: HK
region: Hong Kong
---

# Wide-angle dual-color LED indicator Plug-in detector line & mounting base Stop-Drop ’N Lock base attachment System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector

**Brand:** system sensor
**Price:** HK$1343
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of danger with smart, sleek smoke detection! 🔥

## Quick Answers

- **What is this?** System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector by system sensor
- **How much does it cost?** HK$1343 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/446553578-system-sensor-2w-b-i3-series-2-wire-photoelectric-i3)

## Best For

- system sensor enthusiasts

## Why This Product

- Trusted system sensor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clear Visual Alerts:** Wide-angle, dual-color LEDs provide immediate, unmistakable status updates at a glance.
- • **Precision Detection:** Photoelectric sensor with drift compensation and smoothing algorithms for reliable, false-alarm-resistant alerts.
- • **Effortless Installation:** Stop-Drop ’N Lock base and plug-in design make setup a breeze—no fuss, no delays.
- • **Universal Compatibility:** Mounts seamlessly on octagonal, single-gang, 4-square back boxes, or directly on walls and ceilings.
- • **Smart & Instant Inspection:** Built-in remote maintenance signaling and EZ Walk loop testing keep your system always audit-ready.

## Overview

The System Sensor 2W-B i3 Series is a cutting-edge photoelectric smoke detector designed for professional-grade fire safety. Featuring plug-in installation, Stop-Drop ’N Lock mounting, and advanced drift compensation, it ensures fast setup, reliable detection, and easy maintenance. Its wide-angle dual-color LEDs and built-in test functions make it an indispensable upgrade for any conventional fire alarm system.

## Description

System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector

## Features

- System Sensor i3TM series smoke detectors represent significant advancement in conventional detection. The i3 family is founded on three principles: installation ease, intelligence, and instant inspection.
- Stop-Drop 'N Lock attachment to base Removable detector cover and chamber
- Plug-in detector line, mounting base included Large wire entry port
- Wide-angle, dual-color LED indication Loop testing via EZ Walk feature
- In-line terminals with SEMS screws

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | System Sensor |
| Style | Compact |
| Power Source | Corded Electric |
| Product Dimensions | 5.1D x 13.5W x 13.5H Centimeters |
| Item Weight | 0.5 Pounds |
| Alarm | Visual |
| Operating Humidity | 95 percent |
| Sensor Type | Photoelectric |
| Number of Items | 1 |
| Manufacturer | System Sensor |
| UPC | 783863017599 |
| Country of Origin | USA |
| Item model number | 2W-B |
| ASIN | B0015Q7RFE |

## Product Details

- **Brand:** System Sensor
- **Style:** Compact
- **Power Source:** Corded Electric
- **Product Dimensions:** 5.1D x 13.5W x 13.5H Centimeters
- **Item Weight:** 0.5 Pounds
- **Alarm:** Visual
- **Operating Humidity:** 95 percent
- **Sensor Type:** Photoelectric
- **Number of Items:** 1
- **Manufacturer:** System Sensor

## Images

![System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector - Image 1](https://m.media-amazon.com/images/I/51FQJmv6SCL.jpg)
![System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector - Image 2](https://m.media-amazon.com/images/I/31OTlQTTavL.jpg)

## Questions & Answers

**Q: Can this unit be mounted on a side wall?  The existing unit in on the side wall so would not be pretty without a sensor covering it.**
A: Yes.  It can be mounted on a wall.  Mount it up high though because smoke rises.

**Q: does this unit fit without any drilling/modifications**
A: 2 mounting screws and a small hole for the wire are needed. The mounting screw holes may align with holes from prior detectors

**Q: Can this model replace a honeywell 5192sd (two wire) addressable detector?  in my current system the smoke detectors connected to a vista 128b panel**
A: No you need a 5193sd.

**Q: I am blocked from shipping this item to a california (although previously i had no problem). why is this unit blocked from shipping to california?**
A: Not sure what store you are trying to buy from but we do ship these to California. Visit Fire and Safety Plus on amazon and you can place your order from there. Email us if you have any problems or questions.

## Frequently Bought Together

- System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector
- System Sensor 5601P single-circuit, 135¦ f fixed-temp/rate-of-rise no
- System Sensor 2WT-B Photoelectric Smoke Detector with 135 Degree Thermal

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**Shop now:** [https://www.desertcart.hk/products/446553578-system-sensor-2w-b-i3-series-2-wire-photoelectric-i3](https://www.desertcart.hk/products/446553578-system-sensor-2w-b-i3-series-2-wire-photoelectric-i3)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-27*