What modules are available for the Sniffer4D Nano2+ multi-gas detection unit?

Inhalable Particulate Matter (PM2.5&10) Sensing Module

• Detection method: Laser scattering/light scattering.

• Sense PM1.0 (particle size 0.3~1um), PM2.5 (particle size 0.3~2.5um), and PM10 (particle size 0.3~10um).

• Particle counting effectiveness: 50% @ 0.3um, 98% @ > 0.5um.

• Range: 0~1000ug/m3.

• Detection limit: 1ug/m3.

• Repeatability: <2% FS.

• Theoretical resolution: 1ug/m3.

• Warm-up time from a cold start: <10s.

• Overall response time: <10s.

• Estimated service life: >36 months.

• On-chip proprietary humidity correction algorithm, enabling better data quality in wide humidity range.

For general environmental monitoring.

Cannot be chosen in conjunction with TSP.

Total Suspension Particular Matter (TSP/M100) Sensing Module

• Detection method: Laser scattering/light scattering.

• Sense PM2.5 (particle size 0.3~2.5um), PM10 (particle size 0.3~10um) and PM100 (TSP) (particle size 1~100um).

• Particle counting effectiveness: 50% @ 0.3um, 98% @≥0.5um.

• TSP effective range: 0~2000μg/m3.

• TSP maximum range: >10000μg/m3.

• Theoretical resolution: 1ug/m3.

• Time resolution: 1s.

• On-chip proprietary humidity correction algorithm, enabling better data quality in wide humidity range.

• Overall response time: ≤10s.

• Estimated service life: ≥20000 h;

• Operating temperature: -30 to 70°C.

• Operating humidity: 0-95%RH (non-condensing).

Cannot be chosen with any other sensing modules due to limited space.

High-resolution 03+NO2 Sensing Module

• Detection method: Electrochemistry.

• Sensitive to both 03 and NO2, but unable to identify individual concentrations.

• Range: 0~11ppm.

• Detection limit: 5ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <45s (0~1ppm).

• Theoretical resolution: <1ppb).

• On-chip proprietary humidity correction algorithm, enabling better data quality in wide humidity range.

• Warm-up time from a cold start: ≈2minutes.

• Sensitivity drift: -20~-40%/year (in laboratory environment).

• Zero drift: 0~20ppb/year (in laboratory environment).

• Est. service life: >24months.

•Operating temperature: -30 to 40°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-85%RH.

For general environmental monitoring.

This combination is also called Ox or photochemical oxidant, which represents the oxidising ability of the air.

Individual O3 concentration is calculated using O3=(O3+NO2)-NO2.

High-resolution NO2 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~11ppm.

• Detection limit: 5ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <60s (0~2ppm).

• Theoretical resolution: ~1.1ppb.

• On-chip proprietary humidity correction algorithm, enabling better data quality in wide humidity range.

• Warm-up time from a cold start: ~2minutes.

• Sensitivity drift: -20~-40%/year (in laboratory environment).

• Zero drift: 0~20ppb/year (in laboratory environment).

• Est. service life: >24months.

• Operating temperature: -30 to 40°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-85%RH

For general environmental monitoring, HAZMAT response, and ship fuel sulfur content monitoring.

High-resolution CO Sensing Module

• Detection method: Electrochemistry.

• Range: 0~11ppm.

• Detection limit: 5ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <20s (0~10ppm).

• Theoretical resolution: ~3ppb.

• On-chip proprietary environmental and individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈2minutes.

• Sensitivity drift: <10%/year (in laboratory environment).

• Zero drift: <±100ppb/year (in laboratory environment).

• Est. service life: >36months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For general environmental monitoring and HAZMAT response.

High-resolution SO2 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~15ppm.

• Detection limit: 5ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <40s (0~2ppm).

• Theoretical resolution: <1ppb.

• On-chip proprietary environmental and individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈2minutes.

• Sensitivity drift: <±15%/year (in laboratory environment).

• Zero drift: <+20ppb/year (in laboratory environment).

• Est. service life: >36months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90% RH.

For general environmental monitoring, HAZMAT response, and ship fuel sulfur content monitoring.

Wide-range H2S Sensing Module

• Detection method: Electrochemistry.

• Range: 0~90ppm.

• Detection limit: 20ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <55s (0~2ppm).

• Theoretical resolution: ~5ppb.

• On-chip proprietary environmental and individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈3minutes.

• Sensitivity drift: <20%/year (in laboratory environment).

• Zero drift: <+100ppb/year (in laboratory environment).

• Est. service life: >24months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For general environmental monitoring, oil and gas leak detection, and HAZMAT response.

Wide-range O2 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~50%.

• Detection limit: 0.5%.

• Overall response time (t90): <200s (20.9% -0%).

• Theoretical resolution: <0.1%;

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ~60s.

• Est. service life: >24months.

• Operating temperature: -30 to 55°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 5-95%RH.

• Operating pressure: 800~1200hPa.

For HAZMAT response

Wide-range NH3 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~100ppm.

• Detection limit: 1ppm.

• Repeatability: <2%FS.

• Accuracy: ±5%FS.

• Overall response time (t90): <50s (0~50ppm).

• Theoretical resolution: 0.1ppm.

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Sensitivity drift: <3%/year (in laboratory environment).

• Zero drift: <+2ppm/year (in laboratory environment).

Est. service life: >24months.

• Operating temperature: -40 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-95%RH.

For odor detection and HAZMAT response.

Wide-range HCl Sensing Module

• Detection method: Electrochemistry.

• Range: 0~100ppm.

• Detection limit: 1ppm.

• Repeatability: <4%FS.

• Overall response time (t90): <200s (0~25ppm).

• Theoretical resolution: <15ppb.

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈5minutes.

• Est. service life: >24months.

Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For oil and gas leak detection and HAZMAT response.

Wide-range HCN Sensing Module

• Detection method: Electrochemistry.

• Range: 0~100ppm.

• Detection limit: 50ppb.

• Repeatability: <5%FS.

• Overall response time (t90): <120s (0~30ppm).

• Theoretical resolution: <0.1ppm.

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ~5minutes.

• Est. service life: >12months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For HAZMAT response.

Wide-range HF Sensing Module

• Detection method: Electrochemistry.

• Range: 0~100ppm.

• Detection limit: 1ppm.

• Repeatability: <4%FS.

• Overall response time (t90): <200s (0~25ppm).

• Theoretical resolution: ~20ppb.

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈5minutes.

• Est. service life: >24months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

Wide-range H2 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~5000ppm.

• Detection limit: 17ppm.

• Repeatability: <5%FS;

• Overall response time (t90): <55s (0~400ppm).

• Theoretical resolution: <0.7ppm.

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈5minutes.

• Zero drift: <±20ppb/year (in laboratory environment).

• Est. service life: >24months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For H2 leakage monitoring in power station accidents.

Cl2 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~20ppm.

• Detection limit: 0.5ppm.

• Repeatability: <4%FS.

• Overall response time (t90): <60s (0~10ppm).

• Theoretical resolution: ~20ppb.

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ~5minutes.

• Est. service life: >24months.

• Operating temperature: -20 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For HAZMAT response.

Wide-range PH3 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~2000ppm.

• Detection limit: 20ppm.

• Repeatability: <5%FS.

• Overall response time (t90): <30s (0~800ppm).

• Theoretical resolution: ~0.3ppm;

• On-chip proprietary individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ~5minutes.

• Sensitivity drift: <4%/year (in laboratory environment).

• Est. service life: >24months.

• Zero drift: <1.5ppm/year (in laboratory environment).

• Operating temperature: -20 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 20-90%RH.

Commonly used to check the phosphine gas emitted in the process of drug production.

High-resolution NO Sensing module

• Detection method: Electrochemistry.

• Range: 0~11ppm.

• Detection limit: 5ppb.

• Repeatability: <4%FS; sing Module.

• Overall response time (t90): <60s (0~10ppm).

• Theoreticalresolution: <1.1ppb.

• On-chip proprietary environmental and individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈5minutes.

• Sensitivity drift: -20~-40%/year (in laboratory environment).

• Zero drift: 0~20ppb/year (in laboratory environment).

• Est. service life: >24 months.

• Operating temperature: -30 to 40°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment.).

• Operating humidity: 15-85%RH

For general environmental monitoring and HAZMAT response.

Wide-range SO2 Sensing Module

• Detection method: Electrochemistry.

• Range: 0~100ppm.

• Detection limit: 50ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <40s (0~2ppm).

• Theoretical resolution: <8ppb.

• On-chip proprietary environmental and individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈2minutes.

• Sensitivity drift: <±15%/year (in laboratory environment).

• Zero drift: <+20ppb/year (in laboratory environment).

• Est. service life: >36months.

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

For HAZMAT response.

Wide-range CO Sensing Module

• Detection method: Electrochemistry.

• Range: 0~1000ppm.

• Detection limit: 70ppb.

• Repeatability: <4%FS.

• Overall response time (t90): <20s (0~10ppm).

• Theoretical resolution: ~50ppb.

• On-chip proprietary environmental and individual difference compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: ≈2minutes.

• Sensitivity drift: <10%/year (in laboratory environment).

• Est. service life: >36 months.

• Zero drift: <±100ppb/year (in laboratory environment).

• Operating temperature: -30 to 50°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-90%RH.

OU Sensing Module

• Detection method: Electrochemistry.

• Range: 0~10ppm.

• Detection limit: ~0.1ppm.

• Repeatability: <5%FS.

• Overall response time (t90): <30s (0~10ppm).

• Theoretical resolution: 0.01ppm.

• Warm-up time from a cold start: ~3minutes.

• Est. service life: >36 months.

• Operating temperature: -40°C to +55°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-95% RH (non-condensing).

Commonly used to check the phosphine OU emitted in environmental inspection.

Wide-range CxHy/CH4/LEL Sensing Module

• Detection method: Non-dispersive infrared (NDIR).

• Target gases: hydrocarbons (flammable gases).

• Range: 0~5%VOL (0~100%LEL) methane, or 0~2%VOL propane.

• Detection limit: 0.01%/100ppm.

• Repeatability: <2%FS.

• Accuracy: ±10%.

• Response time (t90): <30s.

• Theoretical resolution: 0.01%.

• On-chip proprietary temperature compensation algorithms, enabling better data quality in wide temperature detection, and HAZMAT response. and humidity ranges.

• Warm-up time from a cold start: about 45s.

• Zero drift: <+0.05% VOL/month.

• Estimated service life: >5 years.

• Operating temperature: -20 to 50°C.

• Operating humidity: 0~95%RH.

• The default target gas is methane (CH4). To measure other types of hydrocarbon, users need to adjust the sensitivity correction factor of the module.

For general environmental monitoring, oil and gas leak detection, and HAZMAT response.

Wide-range CO2 Sensing Module

• Detection method: Non-dispersive infrared (NDIR).

• Range: 0~5%VOL/50000ppm.

• Detection limit: 0.01%/100ppm.

• Accuracy: ±10%FS.

• Repeatability: <2%FS.

• Response time (t90): <30s.

• Theoretical resolution: 0.01%/100ppm.

• On-chip proprietary temperature compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Warm-up time from a cold start: about 45s.

• Zero drift: <±0.05% VOL/month.

• Estimated service life: >5 years.

• Operating temperature: -20 to 50°C.

• Operating humidity: 0~95%RH.

For HAZMAT response.

Wide-range Volatile Organic Compounds (TVOC) Sensing Module

• Detection method: photoionisation detection (PID).

• Target gases: Total volatile organic compounds (TVOC) with ionisation potential energies <10.6eV.

• Range: 0~50ppm (isobutylene).

• Detection limit: 5ppb.

• Repeatability: <4%FS.

• Response time (t90): <3s (diffusion mode).

• On-chip proprietary, enabling better data quality in wide temperature and humidity ranges.

• Theoretical resolution: ~1ppb.

• Warm-up time from a cold start: ~5minutes.

• Estimated service life: 5000 working hours.

• Operating temperature: -40 to 55°C.

• Operating humidity: 0-95%RH.

• Humidity has almost no effect on the measurement in 0~75%RH;

• The default target gas is isobutylene. To measure other types of VOC, users need to adjust the sensitivity correction factor of the module.

For general environmental monitoring, oil and gas leak detection, and HAZMAT response.

HCHO Sensing Module

• Detection method: Solid-state electrochemistry.

• Range: 0~100ppm.

• Detection limit: 1ppm.

• Accuracy: ±5%FS.

• Repeatability: <2%.

• Overall response time (t90): <3s (0 to 50ppm);

• Theoretical resolution: ~0.1ppm;

• On-chip proprietary temperature compensation algorithms, enabling better data quality in wide temperature and humidity ranges.

• Est. service life: >36months.

• Warm-up time from a cold start: ≈5minutes.

• Operating temperature: -40 to 55°C (Note that the module may require readjustment on its zero point due to changes in operating temperature or working environment).

• Operating humidity: 15-95%RH (non-condensing).