does this work like a smoke alarm?

No, it replaces a sensor in a 4 gas monitor that monitors the H2S, CO, LELs and 02 level in air, however if you want to buy it as a portable $650.00 smoke alarm it would work but not as well as the standard smoke alarms

I need three sensors. the ones that need replaced are city technology 5nf, 5fo, and a5f (co, no, and o2). can you supply these?

Yes, we do have them in stock, 5NO, 5FO and A5f sensors.

Bw Sr X2v 4oxv Oxygen O2 Sensor | Desertcart Belgium

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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€ 138.94

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

Description

⚡ Stay ahead with precision—never miss a breath of safety!

SEAMLESS COMPATIBILITY - Designed specifically for BW Max XT II and GasAlert series for effortless integration.
HIGH TEMPERATURE RESILIENCE - Operates flawlessly up to 125°C, ensuring durability in demanding environments.
PRECISION OXYGEN MONITORING - Accurately measures oxygen levels from 0-25% for reliable gas detection.
INSTANT ELECTRICAL SIGNAL OUTPUT - Delivers real-time data with electrical signal output for immediate gas level alerts.
ROBUST STAINLESS STEEL CONSTRUCTION - Engineered with premium stainless steel for long-lasting industrial safety performance.

The BW SR-X2V - 4OXV Oxygen Sensor is a high-precision replacement sensor compatible with BW Max XT II and GasAlert devices. Built with durable stainless steel, it measures oxygen levels from 0-25% and withstands temperatures up to 125°C, delivering reliable real-time electrical signals for critical industrial gas monitoring.

Specifications

ASIN	B00MX5ZC3A
Best Sellers Rank	#125,704 in Automotive ( See Top 100 in Automotive ) #446 in Car Exhaust Oxygen Sensors
Brand	BW
Brand Name	BW
Customer Reviews	4.4 out of 5 stars 54 Reviews
Item Weight	0.03 Kilograms
Item weight	0.03 Kilograms
Manufacturer	BW TECHNOLOGIES (honeywell)
Material	Stainless Steel
Material Type	Stainless Steel
Measuring Range	0-25% volume in air
Measuring range	0-25% volume in air
Model	SR-X2V - 4OXV
Mounting Type	Wall Mount
Mounting type	Wall Mount
Output Type	electrical signal
Part Number	SR-X2V
Specific Uses For Product	gas level monitoring, industrial safety
Style	Modern
Style Name	Modern
Upper Temperature Rating	125 Degrees Celsius

Reviews

J**S

Awsome

Works perfect

27.01.2026

P**L

Produit d’origine - Fonctionne parfaitement bien

Le produit est parfait Mais j’ai été déçu de le voir $50 moins chère 2 semaines après …

28.02.2022

G**M

Fits and works fine

It fits and works. Careful as the great price might be due to brokers buying up sensors from suppliers that are near expiration. Let's see how long it lasts. ==== Copy paste from Google: The oxygen (O2) sensor in a Honeywell BW Gasalert Microclip XL typically has a lifespan of two years from activation, according to BW Gas Monitors. The O2 sensor's shelf life is 6 months. === So mine is now active on 15 May 2025 and we will see if it stayed calibrated for 2 years.

15.05.2025

P**E

A+++

6.02.2021

S**D

Its ok

Sensor

14.05.2021

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€ 138.94

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago