Nitrogen Dioxide (NO2) Detectors

We supply fixed Nitrogen Dioxide gas detectors from trusted manufacturers including Bacharach, BW, Crowcon, Dräger, GMI, Green Instruments, Honeywell, MSA, RAE Systems, Riken Keiki, Senko, and Uniphos. These detectors deliver continuous real-time monitoring, ensuring worker safety and compliance with international safety standards.

Safeguard your operations with reliable NO₂ monitoring solutions.

In the workplace, NO₂ exposure can cause eye and throat irritation, lung inflammation, and long-term respiratory illness. High concentrations may lead to pulmonary edema, making accurate detection essential in industries such as power generation, refineries, automotive workshops, and confined spaces.

Nitrogen Dioxide (NO₂) is a toxic, corrosive gas produced mainly by combustion processes, vehicle exhausts, welding, and chemical manufacturing. It is one of the most significant air pollutants, contributing to smog and acid rain.

DETECTOR TYPE

Fixed Portable

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CrowconCrowcon 3
HoneywellHoneywell 2
MSAMSA 2
RAE SystemsRAE Systems 3
Riken KeikiRiken Keiki 1
SenkoSenko 2

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Top rated products

BW Clip4 Sensor Screen Replacement (10 Kit) £129.00
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RAE Systems MultiRAE Lite

Multi Gas Detectors, Portable Multi Gas Detectors

From £70.00 p/week

RAE Systems MultiRAE Lite is a portable, wireless multi-gas detector for hazardous areas, combining broad sensor flexibility with connected safety.

BUY / HIRE

Honeywell BW RigRat

Area Monitors

From £150.00 p/week

Honeywell BW RigRat is a transportable multi-gas area monitor for hazardous industrial zones, combining wireless safety perimeters with long-runtime operation.

ENQUIRE / HIRE

Honeywell BW Solo

Portable Single Gas Detectors, Single Gas Detectors

From £30.00 p/week

Honeywell BW Solo is a rugged, reusable single-gas detector for toxic and oxygen hazards in hazardous areas, with low-cost connected

BUY / HIRE

MSA ALTAIR 4XR

Confined Space / 4 Gas Monitors, Multi Gas Detectors, Portable Multi Gas Detectors

From £30.00 p/week

MSA ALTAIR 4XR is a rugged four-gas personal detector for hazardous industrial areas, delivering ultra-fast XCell sensor response. The MSA

BUY / HIRE

Riken Keiki GX-3R Pro

Portable Multi Gas Detectors, Confined Space / 4 Gas Monitors, Multi Gas Detectors

From £75.00 p/week

Riken Keiki GX-3R Pro is an ultra-compact 5-gas personal monitor for hazardous confined spaces, combining advanced sensing with smart connectivity.

BUY / HIRE

Senko MGT-P

Confined Space / 4 Gas Monitors, Multi Gas Detectors, Portable Multi Gas Detectors

From £30.00 p/week

Senko MGT is a personal four-gas monitor for hazardous industrial and confined-space work, offering flexible pellistor or infrared flammable sensing.

BUY / HIRE

RAE Systems ToxiRAE Pro EC

Portable Single Gas Detectors, Single Gas Detectors

From £30.00 p/week

RAE Systems ToxiRAE Pro EC is a wireless single-gas and oxygen detector for hazardous areas, combining lone-worker protection with fleet-wide

BUY / HIRE

Crowcon Gasman

Portable Single Gas Detectors, Single Gas Detectors

From £30.00 p/week

Crowcon Gasman is a compact, intrinsically safe single-gas detector for harsh industrial zones, combining rugged design with flexible sensing. Crowcon

BUY / HIRE

MSA ALTAIR 5X

Multi Gas Detectors, Photoionization Detectors (PID / VOC), Portable Multi Gas Detectors, Portable Photoionization Detectors (PID / VOC)

From £100.00 p/week

MSA ALTAIR 5X is a portable multi-gas detector for up to six gases in demanding industrial and emergency environments, with

BUY / HIRE

RAE Systems MultiRAE

Multi Gas Detectors, Portable Multi Gas Detectors

From £70.00 p/week

RAE Systems MultiRAE is a premium portable multi-gas and chemical detector for hazardous areas, combining wireless networking with advanced VOC

BUY / HIRE

Senko SGT-P

Portable Single Gas Detectors, Single Gas Detectors

From £30.00 p/week

Senko SGT-P single-gas personal monitor delivers continuous toxic and oxygen hazard monitoring in hazardous areas with a fully maintainable, long-life

BUY / HIRE

Crowcon Gas-Pro

Multi Gas Detectors, Portable Multi Gas Detectors

From £50.00 p/week

Crowcon Gas-Pro is a portable multi-gas detector for hazardous industrial and marine environments, combining five-gas capability with confined-space specialisation. Crowcon

BUY / HIRE

Base Product

Unit is supplied with a charger and power supply when purchased.

No pump or flow plate (GPZ) - £199.00
No pump with flow plate (GPF) - £225.00
Pumped with flow plate (GPP) - £430.00

Board code

B: Gas-Pro (B) - £132.00
Red board.

Approval

1: ATEX/IECEx (1) - £0.00
2: UL (2) - £0.00
3: Inmetro (3) - £0.00

Language

A: English (lang_A) - £0.00
B: American (lang_B) - £0.00
C: French (lang_C) - £0.00
D: Dutch (lang_D) - £0.00
E: German (lang_E) - £0.00
F: Polish (lang_F) - £0.00
G: Italian (lang_G) - £0.00
H: Spanish (lang_H) - £0.00
I: Brazalian Portuguese (lang_I) - £0.00
J: L-American Spanish (lang_J) - £0.00

Sensor #1

Dual Toxic (CO) (DA-DB) - £163.00
0-500 ppm / H2S 0-100 ppm
Dual Toxic (SO2) (DC-DD) - £298.00
0-20 ppm / H2S 0-100 ppm
Sulphur dioxide (SO2) (AQ) - £163.00
0-20ppm (H2S filtered)
Chlorine (Cl2) (AF) - £323.00
0-5ppm (diffusion only)
Ozone (O3) (AP) - £434.00
0-1ppm (diffusion only)
Ammonia (NH3) (AA) - £434.00
0-100ppm
Nitric oxide (NO) (AM) - £163.00
0-100ppm (diffusion only, bay 1 only)
Nitrogen dioxide (NO2) (AN) - £163.00
0-20ppm (diffusion only)
Chlorine dioxide (ClO2) (AG) - £417.00
0-1ppm (diffusion only)
Carbon monoxide (CO) (AC) - £146.00
0-500ppm
Carbon monoxide (CO) (AD) - £146.00
0-2000ppm
Carbon monoxide (CO) (AE) - £214.00
0-2000ppm (H2 filter)
Hydrogen sulphide (H2S) (AL) - £146.00
0-100ppm
Hydrogen sulphide (H2S) (AT) - £214.00
0-1000ppm
Hydrogen cyanide (HCN) (AU) - £616.00
0-30ppm
Hydrogen (H2) (AK) - £326.00
0-1000ppm
Ammonia (NH3) (SJ) - £512.00
0-1000ppm

Sensor #2

Dual Toxic (SO2) (DC-DD) - £298.00
0-20 ppm / H2S 0-100 ppm
Sulphur dioxide (SO2) (AQ) - £163.00
0-20ppm (H2S filtered)
Chlorine (Cl2) (AF) - £323.00
0-5ppm (diffusion only)
Ozone (O3) (AP) - £434.00
0-1ppm (diffusion only)
Ammonia (NH3) (AA) - £434.00
0-100ppm
Nitric oxide (NO) (AM) - £163.00
0-100ppm (diffusion only, bay 1 only)
Nitrogen dioxide (NO2) (AN) - £163.00
0-20ppm (diffusion only)
Chlorine dioxide (ClO2) (AG) - £417.00
0-1ppm (diffusion only)
Carbon monoxide (CO) (AC) - £146.00
0-500ppm
Carbon monoxide (CO) (AD) - £146.00
0-2000ppm
Carbon monoxide (CO) (AE) - £214.00
0-2000ppm (H2 filter)
Hydrogen sulphide (H2S) (AL) - £146.00
0-100ppm
Hydrogen sulphide (H2S) (AT) - £214.00
0-1000ppm
Hydrogen cyanide (HCN) (AU) - £616.00
0-30ppm
Hydrogen (H2) (AK) - £326.00
0-1000ppm
Ammonia (NH3) (SJ) - £516.00
0-1000ppm

Sensor #3

FD: Methane (CH4) (Pellistor) (FD) - £146.00
0-100% LEL
FH: Propane (C3H8) (Pellistor) (FH) - £146.00
0-100% LEL
FI: Pentane (C5H12) (IR Sensor) (Pellistor) (FI) - £146.00
0-100% LEL
FG: Butane (C4H10) (Pellistor) (FG) - £146.00
0-100% LEL
FC: Ethylene (C2H4) (Pellistor) (FC) - £146.00
0-100% LEL
FM: Acetylene (C2H2) (Pellistor) (FM) - £146.00
0-100% LEL
FA: Hydrogen (H2) (Pellistor) (FA) - £146.00
0-100% LEL
FB: Ethanol (C2H6O) (Pellistor) (FB) - £146.00
0-100% LEL
IA: IR Carbon Dioxide (CO2) (IA) - £521.00
IC: IR LEL Methane (CH4) (IC) - £461.00
IF: IR Pentane (C5H12) (IF) - £461.00
IG: IR Propane (C3H*) (IG) - £461.00

Sensor #4

OC: Oxygen (O2) (OC) - £128.00
0-25% vol (3 year)
ZZ: None (ZZ) - £0.00

Power & Charging

A: Multi-region power supply (pow_A) - £116.00
B: Gas-Pro charager cradle (pow_B) - £30.00
No power supply.
C: Gas-Pro charager cradle (pow_C) - £146.00
With power supply.
F: INMETRO multi-region power supply (pow_F) - £116.00
G: INMETRO Gas-Pro charager cradle (pow_G) - £145.00
With power supply.
H: Vehlcle power lead (pow_H) - £82.00
Z: None (pow_Z) - £0.00

Accessories

D: USB communication lead (acc_D) - £115.00
No power supply.
E: USB communication lead and cradle (acc_E) - £145.00
No power supply.
K: INMETRO USB communication lead (acc_K) - £115.00
No power supply.
L: INMETRO USB communication lead and cradle (acc_L) - £145.00

Region

U: United Kingdom (reg_U) - £0.00
E: Europe (reg_E) - £0.00
N: North America (reg_N) - £0.00
S: Singapore (reg_S) - £0.00
A: Australia (reg_A) - £0.00
L: Latin America (reg_L) - £0.00

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We Deliver Worldwide

Call +44 (0) 1200 445 804

Email info@ribble-enviro.co.uk

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