Alphasense (UK)
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| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | IRM-AT |
| Measurement Principle | Non-Dispersive Infrared (NDIR) |
| Detection Gas | Methane (CH₄) |
| Range | 0–2.5% vol and 0–100% vol |
| Full-Scale Resolution | <400 ppm (≤2.5% vol) |
| Accuracy | ±500 ppm (low range) / ±1% vol (high range) |
| Response Time (t₉₀) | <40 s |
| Operating Temperature | −20 °C to +50 °C |
| Expected Service Life | >5 years |
| Dimensions | Ø20.0 × 16.5 mm |
| Zero Drift Compensation | Dual-channel reference compensation |
| Compliance | Designed for industrial safety and environmental monitoring applications per IEC 60079-29-1, EN 50194, and compatible with ATEX/IECEx system integration requirements |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | LFO2-A4 |
| Measurement Range | 0–30% O₂ |
| Operating Lifetime | ≥5 years |
| Dimensions | Ø20.3 × 16.5 mm |
| Output Current | 80–130 µA @ 20.9% O₂ |
| Response Time (t₉₀) | <17 s (20.9% → 0% O₂) |
| Linearity Error | <0.1% O₂ at 10% O₂ |
| Weight | <6 g |
| Operating Temperature | −30 to +50 °C |
| Pressure Range | 80–120 kPa |
| Humidity Range | 5–95% RH (non-condensing) |
| Storage Life | 6 months at 3–20 °C |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NH3-AF |
| Overload | 200 ppm |
| Response Time (T90) | <60 s |
| Dimensions | Ø20.2 × 16.5 mm |
| Detection Range | 0–100 ppm NH₃ |
| Sensitivity | 20–40 nA/ppm |
| Operating Temperature | −20 to +50 °C |
| Operating Humidity | 15–90 % RH (non-condensing) |
| Zero Current | <±20 nA |
| Load Resistance | 10 Ω |
| Expected Lifetime | >24 months (in air) |
| Storage Life | 6 months (refrigerated, unopened) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NH3-B1 |
| Detection Range | 0–100 ppm |
| Overload Limit | 200 ppm |
| Zero Current | < +10 nA |
| Response Time (t90) | < 150 s |
| Sensitivity | 20–60 nA/ppm |
| Dimensions | Ø32.3 × 16.5 mm |
| Sensor Type | Three-Electrode Electrochemical |
| Operating Temperature | −20 °C to +50 °C |
| Storage Temperature | −40 °C to +70 °C |
| Humidity Range | 15–90 % RH (non-condensing) |
| Expected Lifetime | ≥24 months (in air) |
| Compliance | RoHS, REACH, CE marked per EN 50291-1:2019 |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NO-A1 |
| Sensitivity | 320–480 nA/ppm |
| Response Time (t₉₀) | <45 s |
| Linear Range | 0–50 ppm |
| Linearity Error | ±5% of reading (0–25 ppm), ±10% (25–50 ppm) |
| Overload Capacity | 800 ppm |
| Resolution | <0.2 ppm |
| Dimensions | Ø20.2 × 16.5 mm |
| Operating Temperature | −30 to +50 °C |
| Operating Humidity | 15–90 %RH (non-condensing) |
| Load Resistance | 10–47 Ω |
| Bias Voltage | +300 mV |
| Expected Operational Life | 24 months |
| Storage Stability | 6 months (unpowered, sealed, 23 °C) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NO-AE |
| Measurement Principle | Amperometric Electrochemistry |
| Range | 0–5000 ppm |
| Sensitivity | 60–100 nA/ppm |
| Response Time (t₉₀) | <45 s |
| Linear Range | 0–250 ppm |
| Overload Capacity | 10,000 ppm |
| Resolution | 1 ppm |
| Diameter × Height | Φ20.2 × 16.5 mm |
| Operating Temperature | −30 to +50 °C |
| Operating Humidity | 15–90 % RH (non-condensing) |
| Load Resistance | 10–47 Ω |
| Expected Service Life | 24 months |
| Storage Stability | 6 months (unpowered, sealed, 20 °C) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NO-B1 |
| Measurement Range | 0–250 ppm |
| Sensitivity | 400–620 nA/ppm |
| Response Time (t₉₀) | <30 s |
| Linear Range | –20 to –25 ppm (zero-current baseline offset) |
| Overload Capacity | 1200 ppm |
| Resolution | <0.15 ppm |
| Dimensions | Ø32.3 × 16.5 mm |
| Operating Temperature | –30 to +50 °C |
| Operating Humidity | 15–90 %RH (non-condensing) |
| Load Resistance | 10–47 Ω |
| Expected Service Life | 24 months (typical, under recommended operating conditions) |
| Storage Shelf Life | 6 months (at 20 °C, sealed in original packaging) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NO-B4 |
| Sensitivity | 500–850 nA/ppm |
| Response Time (t₉₀) | <45 s |
| Zero Current | 30–200 nA |
| Measurement Range | 0–20 ppm |
| Overload Capacity | 50 ppm |
| Operating Temperature | −20 to +50 °C |
| Operating Humidity | 15–90 % RH (non-condensing) |
| Expected Lifetime | ≥24 months (in clean air) |
| Bias Voltage | −200 mV |
| Load Resistance | 10 Ω |
| Output Signal | Current (nA) proportional to NO concentration |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NO2-A1 |
| Measurement Range | 0–20 ppm |
| Sensitivity | −400 to −750 nA/ppm |
| Response Time (t₉₀) | <50 s |
| Linearity Error | <±1.5 ppm |
| Overload Capacity | 100 ppm |
| Resolution | 0.02 ppm |
| Dimensions | Ø20.2 × 16.5 mm |
| Operating Temperature | −20 to +50 °C |
| Operating Humidity | 15–90 %RH (non-condensing) |
| Load Resistance | 33 Ω |
| Expected Operational Life | 24 months |
| Storage Stability | 6 months (unpowered, sealed) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | NO2-D4 |
| Measurement Range | 0–20 ppm |
| Sensitivity | −100 to −350 nA/ppm |
| Response Time (t₉₀) | <35 s |
| Linear Range | 0–10 ppm |
| Linearity Error | ±0.6 ppm across full scale |
| Overload Capacity | 60 ppm |
| Resolution | 0.1 ppm |
| Dimensions | Ø14.5 × 8.3 mm |
| Operating Temperature | −20 to +50 °C |
| Operating Humidity | 15–90 %RH (non-condensing) |
| Load Resistance | 33 Ω |
| Expected Service Life | 24 months |
| Storage Shelf Life | 6 months |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Sensor Type | Electrochemical |
| Model | O2-A1 |
| Rated Service Life | 12 months |
| Output Signal | 190–240 µA in air (20.9% O₂) |
| Response Time (t₉₀) | <15 s |
| Dimensions | Ø20.3 × 16.8 mm |
| Operating Temperature Range | −20 °C to +50 °C |
| Storage Life (uninstalled) | 6 months at 20 °C |
| Compliance | RoHS, CE marked per EN 50104 for gas detectors |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | O2-A2 |
| Measurement Range | 0–30% O₂ (v/v) |
| Operating Life | >24 months to 85% of initial output |
| Dimensions | Ø20.3 × 16.8 mm |
| Output Current | 80–120 µA @ 22°C, 20.9% O₂ |
| Response Time (t₉₀) | <15 s (20.9% → 0% O₂, 47 Ω load) |
| Linearity Error | <±0.6 ppm (full scale, zero & 400 ppm points) |
| Weight | <16 g |
| Operating Temperature | −30 to +55 °C |
| Pressure Range | 80–120 kPa |
| Relative Humidity | 5–95% RH (non-condensing) |
| Storage Duration | 6 months at 3–20 °C |
| Load Resistance | 47–100 Ω |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | O2-A3 |
| Operating Life | >36 months (to 85% of initial output) |
| Measurement Range | 0–30% O₂ (vol) |
| Output Current | 55–85 nA @ 22°C, 20.9% O₂ |
| Response Time (t₉₀) | <15 s (20.9% → 0% O₂, 47 Ω load) |
| Dimensions | Ø20.3 × 16.8 mm |
| Weight | <16 g |
| Operating Temperature | −30 to +55 °C |
| Pressure Range | 80–120 kPa |
| Humidity Range | 5–95% RH (non-condensing) |
| Storage Duration | 6 months (3–20 °C) |
| Load Resistance | 47–100 Ω |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | O2-C3 |
| Measurement Range | 0–30% O₂ |
| Operating Life | >3 years |
| Dimensions | Φ20.3 × 23 mm |
| Output Current | 65–85 µA @ 22°C, 20.9% O₂ |
| Response Time (t₉₀) | <45 s |
| Linearity Error | ±0.6 ppm |
| Weight | <18 g |
| Operating Temperature | −30 to +55°C |
| Operating Pressure | 80–120 kPa |
| Relative Humidity Range | 5–95% RH (non-condensing) |
| Storage Stability | 6 months |
| Load Resistance | 47–100 Ω |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | O2-G1 (Miniature) |
| Measurement Range | 0–30% O₂ |
| Operating Lifetime | >12 months |
| Dimensions | Φ20.3 × 10.2 mm |
| Output Current | 65–85 µA @ 22°C, 20.9% O₂ |
| Response Time (t₉₀) | <18 s |
| Weight | <7 g |
| Operating Temperature | −30 to +55°C |
| Pressure Range | 80–120 kPa |
| Humidity Range | 5–95% RH (non-condensing) |
| Storage Life | 6 months |
| Load Resistance | 47–100 Ω |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | O2-G2 |
| Operating Life | >2 years |
| Dimensions | Ø20.3 × 10.2 mm |
| Output Current | 30–42 nA @ 22°C, 20.9% O₂ |
| Response Time (t₉₀) | <18 s |
| Weight | <7 g |
| Operating Temperature Range | −30 to +55 °C |
| Pressure Range | 80–120 kPa |
| Humidity Range | 5–95 %RH (non-condensing) |
| Storage Stability | 6 months |
| Load Resistance | 47–100 Ω |
| Sensor Type | Galvanic Electrochemical |
| Compliance | CE-marked, RoHS-compliant, ATEX/IECEx-ready (with appropriate housing) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | O2-M2 |
| Measurement Range | 0–30% O₂ (v/v) |
| Operating Life | >24 months (to 85% of initial output) |
| Dimensions | Ø20.3 × 16.8 mm |
| Typical Output | 80–120 nA @ 22°C, 20.9% O₂ |
| Response Time (t₉₀) | <15 s (20.9% → 0% O₂, 47 Ω load) |
| Linearity Error | <±0.6% FS (zero & 400 ppm points) |
| Weight | <16 g |
| Operating Temperature | −30 to +55°C |
| Pressure Range | 80–120 kPa |
| Relative Humidity Range | 5–95% RH (non-condensing) |
| Storage Stability | 6 months (unpowered, sealed) |
| Load Resistance | 47–100 Ω |
| Sensor Type | Potentiostatically controlled electrochemical cell |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | OX-B431 (Successor to OX-B421) |
| Detection Principle | Potentiostatic 3-Electrode Electrochemical |
| Target Gases | O₃ and NO₂ |
| O₃ Range | 0–20 ppm (50 ppm overload) |
| NO₂ Range | 0–20 ppm (50 ppm overload) |
| Response Time (t₉₀) | <80 s for both gases |
| Sensitivity (O₃) | −225 to −750 nA/ppm |
| Sensitivity (NO₂) | −250 to −750 nA/ppm |
| Dimensions | Ø32.3 × 16.5 mm |
| Operating Temperature | −30 °C to +50 °C |
| Operating Humidity | 15–90 % RH (non-condensing) |
| Lifetime | ≥24 months (typical, dependent on exposure conditions) |
| Compliance | CE-marked, RoHS-compliant, designed per IEC 60079-29-1 for use in gas detection systems |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | PH3-A1 |
| Measurement Range | 0–10 ppm |
| Sensitivity | 550–900 nA/ppm |
| Response Time (t₉₀) | <25 s |
| Linearity Error | ±0.6 ppm (0–20 ppm full scale) |
| Overload Limit | 75 ppm |
| Resolution | <0.1 ppm |
| Dimensions | Ø20.2 × 16.5 mm |
| Operating Temperature | −30 to +50 °C |
| Operating Humidity | 20–90 %RH (non-condensing) |
| Load Resistance | 10–33 Ω |
| Expected Service Life | 24 months |
| Storage Stability | 6 months (unpowered, sealed, 20 °C) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | SO2-AE |
| Detection Range | 0–2,000 ppm |
| Overload Capacity | 10,000 ppm |
| Response Time (t90) | <33 s |
| Sensitivity | 55–80 nA/ppm |
| Resolution | <1.5 ppm |
| Dimensions | Ø20.2 × 16.5 mm |
| Sensor Type | Three-electrode electrochemical gas sensor |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | SO2-AF (Portable) |
| Overload | 75 ppm |
| Response Time (t₉₀) | <35 s |
| Dimensions | Ø20 × 16.5 mm |
| Detection Range | 0–50 ppm |
| Sensitivity | 300–550 nA/ppm |
| Resolution | <0.1 ppm |
| Linearity | Linear from 0–10 ppm |
| Operating Temperature | −20 °C to +50 °C |
| Operating Humidity | 15–90 % RH (non-condensing) |
| Expected Lifetime | ≥24 months (typical in ambient air) |
| Zero Current | <±5 nA |
| Bias Voltage | −300 mV |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | SO2-BE |
| Detection Range | 0–2000 ppm |
| Overload Limit | 10,000 ppm |
| Response Time (t₉₀) | <30 s |
| Sensitivity | 70–100 nA/ppm |
| Resolution | <2 ppm |
| Linearity | Linear up to 20 ppm |
| Dimensions | Ø32.3 × 16.5 mm |
| Operating Temperature | −20 °C to +50 °C |
| Operating Humidity | 15–90% RH (non-condensing) |
| Expected Lifetime | ≥24 months (typical in ambient air) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | SO2-BF (Fixed-Mount) |
| Overload | 500 ppm |
| Response Time (t90) | <30 s |
| Dimensions | Ø32.3 × 16.5 mm |
| Measurement Range | 0–100 ppm SO₂ |
| Sensitivity | 300–440 nA/ppm |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | SOH-A2 |
| Detection Principle | Potentiostatic 3-Electrode Electrochemistry |
| Gas Targets | Sulfur Dioxide (SO₂) and Hydrogen Sulfide (H₂S) |
| SO₂ Channel | Range 0–20 ppm, Resolution <0.2 ppm, t₉₀ <15 s, Sensitivity 140–250 nA/ppm (at 10 ppm), Zero Current <+0.2 ppm, Linearity Error ±2 ppm (0–10 ppm), Overload Capacity 50 ppm |
| H₂S Channel | Range 0–200 ppm, Resolution <0.1 ppm, t₉₀ <25 s, Sensitivity 450–900 nA/ppm (at 20 ppm), Zero Current ±0.25 ppm, Linearity Error ±5 ppm (0–20 ppm), Overload Capacity 200 ppm |
| Filtered Cross-Sensitivity Suppression | Integrated high-capacity SO₂-specific filter eliminates interference from H₂S, NOₓ, and acidic gases |
| Operating Temperature | –20 °C to +50 °C |
| Operating Humidity | 15–90 % RH (non-condensing) |
| Expected Lifetime | ≥24 months (typical field use) |
| Compliance | CE marked, RoHS compliant, meets IEC 60079-29-1 (Explosive Atmospheres – Gas Detectors) |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model Series | THCO / THSO₂ / THH₂S / THNO₂ |
| Supply Voltage | 7.5–35 VDC |
| Output Signal | 4–20 mA analog |
| Sensor Compatibility | Alphasense B-Series and A-Series electrochemical toxic gas sensors |
| Compliance | CE-marked, RoHS-compliant, designed for integration into industrial fixed-gas detection systems |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | VOC-A4 |
| Detection Principle | Amperometric 4-Electrode Electrochemical |
| Target Gases | Volatile Organic Compounds (e.g., ethanol, isopropanol, toluene) and Carbon Monoxide (CO) |
| Operating Bias Options | 0 V, 0.1 V, 0.2 V, or 0.3 V |
| Response Time (t₉₀) | <30 s |
| Dimensions | Ø20.2 × 16.5 mm |
| CO Range | 0–190 ppm (max overload: 1000 ppm) |
| CO Sensitivity | 230–410 nA/ppm |
| Ethanol (C₂H₆O) Range | 0–2 ppm (max overload: 5 ppm) |
| Ethanol Sensitivity | 200–400 nA/ppm |
| Brand | Alphasense (UK) |
|---|---|
| Origin | United Kingdom |
| Model | VOC-B4 |
| Detection Principle | Amperometric 4-Electrode Electrochemistry |
| Target Gases | Volatile Organic Compounds (e.g., ethanol), Carbon Monoxide (CO) |
| Response Time (t₉₀) | <30 s |
| Dimensions | Ø32.3 × 16.5 mm |
| CO Range | 0–100 ppm (overload: 1000 ppm) |
| Ethanol Range | 0–2 ppm (overload: 5 ppm) |
| CO Sensitivity | 400–700 nA/ppm |
| Ethanol Sensitivity | 400–650 nA/ppm |
| Bias Voltage Options | 0 V, 0.1 V, 0.2 V, or 0.3 V |
| Operating Temperature | –20 °C to +50 °C |
| Humidity Range | 15–90 % RH (non-condensing) |