📊 Comparison Table
| Feature Dimension |
SO₂-NO₂-5-01 (Low-Range High-Precision Version) |
SO₂-NO₂-50-01 (Industrial Wide-Range Version) |
| Core Positioning |
Environmental Quality, Precision Areas, Early-Warning Monitoring |
Industrial Safety, Occupational Health Safety Protection |
| Range & Precision |
Low Range (0-5ppm), High Resolution (0.01ppm) |
Wide Range (0-50ppm), Applicable Resolution (0.1ppm) |
| Response Speed |
SO₂: <3s (T90<80s) NO₂: <3s (T90<80s) |
SO₂: <3s (T90<15s) NO₂: <3s (T90<30s) |
| Key Selling Points |
High Sensitivity, Trend Monitoring, Environmental Compliance |
Rapid Alarm, Personnel Safety Protection, Industrial Compliance |
| Typical Users |
Property Managers, Environmental Agencies, Building Automation System Integrators |
Plant Safety Managers, Industrial Automation Integrators, EHS Departments |
⚙️ Parameter SO₂-NO₂-5-01
| Measurement Content |
Range |
Resolution |
Response Time |
| SO₂ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| NO₂ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| Temperature |
-25~80℃ |
±0.2℃ (at 25℃) |
Real-time |
| Humidity |
0~99.9%RH |
±2%RH (at 25℃) |
Real-time |
| Specifications Table 2 (SO₂-NO₂-5-01) |
| Measurement Content |
SO₂, NO₂, Temperature, Humidity, Dew Point |
| Power Supply |
DC12~48V, POE power supply |
| Communication Protocol |
Modbus TCP, UDP, SNMP (V1, V2), MQTT |
| Communication Interface |
RJ45 |
| Interface Options |
2 channels DI input, 1 channel DO output, 1 channel RS485, 1 channel DC12V output |
| Alarm System |
Light, sound, email alarm, protocol alerts |
| Screen Display |
3.5 inch TFT color screen |
| Data Storage |
100,000 records |
| Installation |
Screw fixation, Magnetic |
| Dimensions |
100*135*35mm |
⚙️ Parameter SO₂-NO₂-50-01
| Measurement Content |
Range |
Resolution |
Response Time |
| SO₂ |
0-50ppm |
0.1ppm |
<3s (T90<15s) |
| NO₂ |
0-50ppm |
0.1ppm |
<3s (T90<30s) |
| Temperature |
-25~80℃ |
±0.2℃ (at 25℃) |
Real-time |
| Humidity |
0~99.9%RH |
±2%RH (at 25℃) |
Real-time |
| Specifications Table 2 (SO₂-NO₂-50-01) |
| Measurement Content |
SO₂, NO₂, Temperature, Humidity, Dew Point |
| Power Supply |
DC12~48V, POE power supply |
| Communication Protocol |
Modbus TCP, UDP, SNMP (V1, V2), MQTT |
| Communication Interface |
RJ45 |
| Interface Options |
2 channels DI input, 1 channel DO output, 1 channel RS485, 1 channel DC12V output |
| Alarm System |
Light, sound, email alarm, protocol alerts |
| Screen Display |
3.5 inch TFT color screen |
| Data Storage |
100,000 records |
| Installation |
Screw fixation, Magnetic |
| Dimensions |
100*135*35mm |
🎥 Product Video
📐 Product Dimensions
🖼️ Product Display
📋 Gas Module Selection Table
| Gas Module |
Channel |
Gas Types |
Formula |
Range |
Resolution |
Response Time |
| SMELL-TVOC-200-01 |
S0 |
Odorous Gases |
SMELL |
0-200ppm |
0.1ppm |
< 3s (T90 < 15s) |
| S1 |
Volatile Organic Compounds |
TVOC |
0-200ppm |
0.1ppm |
< 3s (T90 < 15s) |
| NH₃-H₂S-100-10-01 |
S0 |
Ammonia |
NH₃ |
0-100ppm |
0.1ppm |
< 3s |
| S1 |
Hydrogen Sulfide |
H₂S |
0-10ppm |
0.01ppm |
< 3s (T90 < 30s) |
| SMELL-H₂S-200-100-01 |
S0 |
Odorous Gases |
SMELL |
0-200ppm |
0.1ppm |
< 3s (T90 < 30s) |
| S1 |
Hydrogen Sulfide |
H₂S |
0-100ppm |
0.1ppm |
< 3s (T90 < 30s) |
| NH₃-H₂S-100-01 |
S0 |
Ammonia |
NH₃ |
0-100ppm |
0.1ppm |
< 3s |
| S1 |
Hydrogen Sulfide |
H₂S |
0-100ppm |
0.1ppm |
< 3s (T90 < 30s) |
| ETO-O₂-100-25%-01 |
S0 |
Ethylene Oxide |
C₂H₄O |
0-100ppm |
0.1ppm |
< 3s (T90 < 30s) |
| S1 |
Oxygen |
O₂ |
0-25%vol |
0.01%vol |
< 3s (T90 < 30s) |
| ETO-O₂-10-25%-01 |
S0 |
Ethylene Oxide |
C₂H₄O |
0-10ppm |
0.01ppm |
< 3s (T90 < 80s) |
| S1 |
Oxygen |
O₂ |
0-25%vol |
0.01%vol |
< 3s (T90 < 30s) |
| PH₃-20-2000-01 |
S0 |
Phosphine |
PH₃ |
0-20ppm |
0.1ppm |
< 3s (T90 < 30s) |
| S1 |
Phosphine |
PH₃ |
0-2000ppm |
1ppm |
< 3s (T90 < 30s) |
| H₂-CO-4%-1000-01 |
S0 |
Hydrogen |
H₂ |
0-4%vol |
0.01%vol |
< 3s (T90 < 30s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
< 3s (T90 < 30s) |
| H₂-CO-1000-01 |
S0 |
Hydrogen |
H₂ |
0-1000ppm |
1ppm |
< 3s (T90 < 30s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
< 3s (T90 < 30s) |
| O₂-CO-25%-1000-01 |
S0 |
Oxygen |
O₂ |
0-25%vol |
0.01%vol |
< 3s (T90 < 30s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
< 3s (T90 < 30s) |
| O₂-H₂S-25%-100-01 |
S0 |
Oxygen |
O₂ |
0-25%vol |
0.01%vol |
< 3s (T90 < 30s) |
| S1 |
Hydrogen Sulfide |
H₂S |
0-100ppm |
0.1ppm |
< 3s (T90 < 30s) |
| O₂-CO-25%-10000-01 |
S0 |
Oxygen |
O₂ |
0-25%vol |
0.01%vol |
< 3s (T90 < 30s) |
| S1 |
Carbon Monoxide |
CO |
0-10000ppm |
1ppm |
< 3s (T90 < 30s) |
| H₂S-CO-100-1000-01 |
S0 |
Hydrogen Sulfide |
H₂S |
0-100ppm |
0.1ppm |
< 3s (T90 < 30s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
< 3s (T90 < 30s) |
| TVOC-CO-200-1000-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-200ppm |
0.1ppm |
< 3s (T90 < 15s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
< 3s (T90 < 30s) |
| O₃-CO-5-10-01 |
S0 |
Ozone |
O₃ |
0-5ppm |
0.01ppm |
< 3s (T90 < 80s) |
| S1 |
Carbon Monoxide |
CO |
0-10ppm |
0.01ppm |
< 3s (T90 < 80s) |
| NO₂-CO-100-1000-01 |
S0 |
Nitrogen Dioxide |
NO₂ |
0-100ppm |
0.1ppm |
< 3s (T90 < 30s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
< 3s (T90 < 30s) |
| SMELL-NH₃-5-10-01 |
S0 |
Odorous Gases |
SMELL |
0-5ppm |
0.01ppm |
< 3s (T90 < 30s) |
| S1 |
Ammonia |
NH₃ |
0-10ppm |
0.01ppm |
< 3s |
| TVOC-HCHO-10-5-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Formaldehyde |
HCHO |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| TVOC-CO-10-1000-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
<3s (T90<30s) |
| TVOC-O₃-10-5-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Ozone |
O₃ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| TVOC-CO-10-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Carbon Monoxide |
CO |
0-10ppm |
0.01ppm |
<3s (T90<30s) |
| TVOC-H₂S-10-100-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Hydrogen Sulfide |
H₂S |
0-100ppm |
0.1ppm |
<3s (T90<30s) |
| SO₂-NO₂-5-01 |
S0 |
Sulfur Dioxide |
SO₂ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| S1 |
Nitrogen Dioxide |
NO₂ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| O₃-HCHO-5-01 |
S0 |
Ozone |
O₃ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| S1 |
Formaldehyde |
HCHO |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| TVOC-CO-100-01 |
S0 |
Volatile Organic Compounds |
TVOC |
0-100ppm |
0.1ppm |
<3s (T90<15s) |
| S1 |
Carbon Monoxide |
CO |
0-100ppm |
0.1ppm |
<3s (T90<30s) |
| O₃-HCHO-100-50-01 |
S0 |
Ozone |
O₃ |
0-100ppm |
0.1ppm |
<3s (T90<80s) |
| S1 |
Formaldehyde |
HCHO |
0-50ppm |
0.1ppm |
<3s (T90<80s) |
| SO₂-NO₂-50-01 |
S0 |
Sulfur Dioxide |
SO₂ |
0-50ppm |
0.1ppm |
<3s (T90<15s) |
| S1 |
Nitrogen Dioxide |
NO₂ |
0-50ppm |
0.1ppm |
<3s (T90<30s) |
| SMELL-NH₃-5-100-01 |
S0 |
Odorous Gases |
SMELL |
0-5ppm |
0.01ppm |
<3s (T90<30s) |
| S1 |
Ammonia |
NH₃ |
0-100ppm |
0.1ppm |
<3s |
| SMELL-TVOC-5-10-01 |
S0 |
Odorous Gases |
SMELL |
0-5ppm |
0.01ppm |
<3s (T90<30s) |
| S1 |
Volatile Organic Compounds |
TVOC |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| NH₃-H₂S-10-5-01 |
S0 |
Ammonia |
NH₃ |
0-10ppm |
0.01ppm |
<3s |
| S1 |
Hydrogen Sulfide |
H₂S |
0-5ppm |
0.01ppm |
<3s (T90<30s) |
| PH₃-O₂-20-25%-01 |
S0 |
Phosphine |
PH₃ |
0-20ppm |
0.1ppm |
<3s (T90<30s) |
| S1 |
Oxygen |
O₂ |
0-25%vol |
0.01%vol |
<3s (T90<30s) |
| IAQ-CO-10-1000-01 |
S0 |
Air Quality |
IAQ |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Carbon Monoxide |
CO |
0-1000ppm |
0.1ppm |
<3s (T90<30s) |
| IAQ-HCHO-10-5-01 |
S0 |
Air Quality |
IAQ |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Formaldehyde |
HCHO |
0-5ppm |
0.01ppm |
<3s (T90<80s) |
| IAQ-O₃-10-5-01 |
S0 |
Air Quality |
IAQ |
0-10ppm |
0.01ppm |
<3s (T90<15s) |
| S1 |
Ozone |
O₃ |
0-5ppm |
0.01ppm |
<3s (T90<80s) |