
| Item | Value |
|---|---|
| Measured gases | NH3ammonia, H2hydrogen, COcarbon monoxide, SO2 sulfur dioxide, NO nitric oxide, O2oxygen, H2Shydrogen sulfide, CL2 chlorine, CLO2 chlorine dioxide, CO2carbon dioxide, O3 ozone, toxic gas, HCN hydrogen cyanide |
| Measuring range | 0-100ppm |
| Detection principle | catalytic combustion |
| Accuracy | |
| Resolution | |
| Response time | |
| Ingress protection | |
| Explosion protection | |
| Operating temperature | |
| Power supply | |
| Output signal |
The new generation of single-gas detectors helps reduce costs, ensure compliance, and stay on top of worker protection.The Honeywell BW Solo has you covered—with additional features that make it easier than ever to ensure compliance and work efficiently. Its equipment has a reliable service life and one-touch operation, and is compact and lightweight.
Honeywell BW SoloOther features:
• Optional activation IntelliFlash™or flashes when not compliant
• It can assign detectors to fixed people and fixed points
• Simple and easy-to-read display with support for multiple languages
• Provide data logging,24 The hourly scroll shows the peak reading

| Size: |
2.7x 2.6 x 1.4 inches / 7.0 x 6.7x 3.6 cm (1 Series Sensor Models) 2.7x 2.6 x 1.6 inches / 7.0 x 6.7x 4.1 cm (4 Series Sensor Models) |
| weight | 3.6 to 4.1 oz./ 103 to 116g, depending on the type of sensor installed |
| Humidity | 0% - 95% relative humidity (no condensation) |
| Ingress protection | IP66/68 |
| Alarm type | Visibility, vibration, sound (95 dB); Low, high, TWA, STEL, non-compliant |
| Self-inspection | Integrity of sensors at start-up, condition of circuit board, battery and sound/light alarms, battery (uninterrupted) |
| Standard battery life | 12 months (1 series O2 6 months) |
| Wireless | • Bluetooth Low Energy (BLE) – Interfaces with the Honeywell Safety Communicator app |
| User Options |
• Reset TWA/STEL and peak readings • Record location numbers • Change high, low, TWA, and STEL alarm set points • Select languages: English, French, Spanish, German, Italian, Russian, Japanese, Chinese, Korean, Portuguese, Dutch (Honeywell BW Solo Lite*: English, Russian, Japanese, Chinese, and Korean only) • Lock alarms • Enable IntelliFlash and non-compliance indicators • Set calibration and/or impact test reminders |
| Certifications & Licensing |
n: Class I, Zone 1, Group A, B, C, D T4 |
| Warranty |
1 Series Detector & Sensor Warranty 3 Years (Batteries Not Included) |
| gas | Standard measurement range | Resolution | Operating temperature |
| H2S (1S) | 0-200ppm | 0.1ppm |
-40 to +140°F /-40 to +60°C |
|
CO(1S) |
0-2000ppm | 1ppm | -40 to +140°F /-40 to +60°C |
|
O2 (1S) |
0 - 30% v/v |
0.1% v/v |
-40 to +140°F /-40 to +60°C |
|
CL2 (4S) |
0 - 50 ppm |
0.1 ppm |
-4 to +104°F /-20 to +40°C |
|
CLO2 (4S) |
0 - 1 ppm |
0.01 ppm |
-4 to +104°F /-20 to +40°C |
|
CO-H (4S) |
0 - 2000 ppm |
0.5 ppm |
-22 to +122°F /-30 to +50°C |
|
ETO (4S) |
0 - 100 ppm |
0.1 ppm |
-22 to +122°F /-30 to +50°C |
|
H2 (4S) |
0 - 1000 ppm |
2ppm | -4 to +122°F /-20 to +50°C |
| H2S (Extended Measuring range) (4S) |
0 - 500 ppm |
0.1 ppm |
-40 to +122°F /-40 to +50°C |
| HCN (4S) |
0 - 100 ppm |
0.1 ppm |
-22 to +122°F /-30 to +50°C |
| NH3 (4S) |
0 - 100 ppm |
1 ppm |
-4 to +104°F /-20 to +40°C |
| NH3 (Extended Measuring range) (4S) |
0 - 400 ppm |
1 ppm |
-4 to +104°F /-20 to +40°C |
| NO (4S) |
0 - 250 ppm |
0.2 ppm |
-22 to +122°F /-30 to +50°C |
| NO2 (4S) |
0 - 100 ppm |
0.1 ppm |
-4 to +122°F /-20 to +50°C |
| O3 (4S) |
0 - 1 ppm |
0.01 ppm |
-4 to +104°F /-20 to +40°C |
| PH3 (4S) |
0-5 ppm |
0.1 ppm |
-4 to +122°F /-20 to +50°C |
| SO2 (4S) |
0 - 100 ppm |
0.1 ppm |
-22 to +122°F /-30 to +50°C |
| H2S (4S)* |
0 - 100 ppm |
0.1 ppm |
-4 to +122°F /-20 to +50°C |
| CO (4S)* |
0 - 1000 ppm |
1 ppm |
-4 to +122°F /-20 to +50°C |
| O2 (4S)* |
0 - 30% v/v |
0.1% v/v |
-4 to +122°F /-20 to +50°C |

It is suitable for industrial safety monitoring and on-site inspection scenarios.
This module lists part numbers and descriptions for model selection. Price information is excluded.
| Category | Part Number | |
|---|---|---|
| General Accessories | BWS1-A-B | BW™ Solo - (HCN) Wireless BW™ Solo - (NH₃) Wireless BW™ Solo - (NH₃ ext range) Wireless |
| Replacement Parts | BWS1-A-PCB1 | PCB Hydrogen Cyanide (HCN) - Wireless BW PCB Ammonia (NH3) - Wireless PCB Ammonia ext. ran |
| General Accessories | BWS1-A-Y | BW™ Solo - (HCN) Wireless BW™ Solo - (NH₃) Wireless BW™ Solo - (NH₃ ext range) Wireless |
| General Accessories | BWS1-A2-B | BW™ Solo - (NH₃) Wireless BW™ Solo - (NH₃ ext range) Wireless BW™ Solo - (NO) Wireless |
| Replacement Parts | BWS1-A2-PCB1 | PCB Ammonia (NH3) - Wireless PCB Ammonia ext. range (NH3 Ext) - Wireless PCB Nitric Oxide |
| General Accessories | BWS1-A2-Y | BW™ Solo - (NH₃) Wireless BW™ Solo - (NH₃ ext range) Wireless BW™ Solo - (NO) Wireless |
| General Accessories | BWS1-BL-B | BW™ Solo - (SO₂) Wireless BW™ Solo - (CO₂) Wireless BW™ Solo - (HF) Wireless |
| Replacement Parts | BWS1-BL-PCB1 | PCB Sulfur Dioxide (SO₂) - Wireless PCB Oxygen (CO₂) - Wireless PCB Hydrogen Fluoride (HF) |
| General Accessories | BWS1-BL-Y | BW™ Solo - (SO₂) Wireless BW™ Solo - (CO₂) Wireless BW™ Solo - (HF) Wireless |
| General Accessories | BWS1-C-B | BW™ Solo - (Cl₂) Wireless BW™ Solo - (ClO₂) Wireless |
| Replacement Parts | BWS1-C-PCB1 | PCB Chlorine (Cl₂) - Wireless PCB Chlorine Dioxide (ClO₂) - Wireless |
| General Accessories | BWS1-C-Y | BW™ Solo - (Cl₂) Wireless BW™ Solo - (ClO₂) Wireless |
| General Accessories | BWS1-D-B | BW™ Solo - (NO) Wireless BW™ Solo - (NO₂) Wireless BW™ Solo - Ozone (O₃) Wireless |
| Replacement Parts | BWS1-D-PCB1 | PCB Nitric Oxide (NO) - Wireless - PCB1 PCB Nitrogen Dioxide (NO₂) - Wireless PCB Oxygen ( |
| General Accessories | BWS1-D-Y | BW™ Solo - (NO) Wireless BW™ Solo - (NO₂) Wireless BW™ Solo - Ozone (O₃) Wireless |
| General Accessories | BWS1-E-B | BW™ Solo - (CO-H₂ resistant) Wireless BW™ Solo - (ETO) Wireless BW™ Solo - Hydrogen (H₂) W |
| General Accessories | BWS1-E-Y | BW™ Solo - (CO-H₂ resistant) Wireless BW™ Solo - (ETO) Wireless BW™ Solo - Hydrogen (H₂) W |
| General Accessories | BWS1-G-B | BW™ Solo - (NO₂) Wireless BW™ Solo - Ozone (O₃) Wireless BW™ Solo - (PH₃) Wireless |
| Replacement Parts | BWS1-G-PCB1 | PCB Oxygen (O₂) - Wireless PCB Ozone (O3) - Wireless PCB Phosphine (PH3) - Wireless B1 |
| General Accessories | BWS1-G-Y | BW™ Solo - (NO₂) Wireless BW™ Solo - Ozone (O₃) Wireless BW™ Solo - (PH₃) Wireless |
| General Accessories | BWS1-H2-B | BW™ Solo - Hydrogen (H₂) Wireless BW™ Solo - (H₂S ext range) Wireless BW™ Solo - (HCN) Wir |
| Replacement Parts | BWS1-H2-PCB1 | PCB Hydrogen Sulfide (H₂S) - Wireless PCB Hydrogen Sulfide ext. range (H₂S Ext) - Wireless |
| General Accessories | BWS1-H2-Y | BW™ Solo - Hydrogen (H₂) Wireless BW™ Solo - (H₂S ext range) Wireless BW™ Solo - (HCN) Wir |
| General Accessories | BWS1-HC-B | BW™ Solo - (HF) Wireless BW™ Solo - (HCl) Wireless BW™ Solo - Lite |
| General Accessories | BWS1-HC-Y | BW™ Solo - (HF) Wireless BW™ Solo - (HCl) Wireless BW™ Solo - Lite |
| General Accessories | BWS1-HF-B | BW™ Solo - (CO₂) Wireless BW™ Solo - (HF) Wireless BW™ Solo - (HCl) Wireless |
| General Accessories | BWS1-HF-Y | BW™ Solo - (CO₂) Wireless BW™ Solo - (HF) Wireless BW™ Solo - (HCl) Wireless |
| General Accessories | BWS1-HL-B | BW™ Solo - (CO) Wireless BW™ Solo - (H₂S) Wireless BW™ Solo - (O₂) Wireless |
| Replacement Parts | BWS1-HL-PCB1 | PCB Hydrogen (H₂) - Wireless PCB Hydrogen Sulfide (H₂S) - Wireless PCB Hydrogen Sulfide ex |
| General Accessories | BWS1-HL-Y | BW™ Solo - (CO) Wireless BW™ Solo - (H₂S) Wireless BW™ Solo - (O₂) Wireless |
| General Accessories | BWS1-M2-B | BW™ Solo - (ClO₂) Wireless BW™ Solo - (CO-H₂ resistant) Wireless BW™ Solo - (ETO) Wireless |
| Replacement Parts | BWS1-M2-PCB1 | PCB Carbon Monoxide (CO) - Wireless BWS1 - PCB Carbon Monoxide-H₂ resistant () - Wireless |
| General Accessories | BWS1-M2-Y | BW™ Solo - (ClO₂) Wireless BW™ Solo - (CO-H₂ resistant) Wireless BW™ Solo - (ETO) Wireless |
| General Accessories | BWS1-ML-B | Yellow Black BW™ Solo - (CO) Wireless BW™ Solo - (H₂S) Wireless |
| General Accessories | BWS1-ML-Y | Yellow Black BW™ Solo - (CO) Wireless BW™ Solo - (H₂S) Wireless |
| General Accessories | BWS1-N | PCB Ammonia ext. range (NH3 Ext) - Wireless PCB Nitric Oxide (NO) - Wireless - PCB1 PCB Ni |
| General Accessories | BWS1-N-B | BW™ Solo - (NH₃ ext range) Wireless BW™ Solo - (NO) Wireless BW™ Solo - (NO₂) Wireless |
| General Accessories | BWS1-N-Y | BW™ Solo - (NH₃ ext range) Wireless BW™ Solo - (NO) Wireless BW™ Solo - (NO₂) Wireless |
| General Accessories | BWS1-P-B | BW™ Solo - Ozone (O₃) Wireless BW™ Solo - (PH₃) Wireless BW™ Solo - (SO₂) Wireless |
| General Accessories | BWS1-P-PC | PCB Ozone (O3) - Wireless PCB Phosphine (PH3) - Wireless B1 PCB Sulfur Dioxide (SO₂) - Wir |
| General Accessories | BWS1-P-Y | BW™ Solo - Ozone (O₃) Wireless BW™ Solo - (PH₃) Wireless BW™ Solo - (SO₂) Wireless |
| General Accessories | BWS1-R-B | BW™ Solo - (ETO) Wireless BW™ Solo - Hydrogen (H₂) Wireless BW™ Solo - (H₂S ext range) Wir |
| Replacement Parts | BWS1-R-PCB1 | PCB Ethylene Oxide (ETO) - Wireless BWS1 -E-PCB1 PCB Hydrogen (H₂) - Wireless PCB Hydrogen |
| General Accessories | BWS1-R-Y | BW™ Solo - (ETO) Wireless BW™ Solo - Hydrogen (H₂) Wireless BW™ Solo - (H₂S ext range) Wir |
| General Accessories | BWS1-S-B | BW™ Solo - (PH₃) Wireless BW™ Solo - (SO₂) Wireless BW™ Solo - (CO₂) Wireless |
| Replacement Parts | BWS1-S-PCB1 | PCB Phosphine (PH3) - Wireless B1 PCB Sulfur Dioxide (SO₂) - Wireless PCB Oxygen (CO₂) - W |
| General Accessories | BWS1-S-Y | BW™ Solo - (PH₃) Wireless BW™ Solo - (SO₂) Wireless BW™ Solo - (CO₂) Wireless |
| General Accessories | BWS1-V-B | BW™ Solo - (Cl₂) Wireless BW™ Solo - (ClO₂) Wireless BW™ Solo - (CO-H₂ resistant) Wireless |
| Replacement Parts | BWS1-V-PCB1 | PCB Chlorine (Cl₂) - Wireless PCB Chlorine Dioxide (ClO₂) - Wireless PCB Carbon Monoxide ( |
| General Accessories | BWS1-V-Y | BW™ Solo - (Cl₂) Wireless BW™ Solo - (ClO₂) Wireless BW™ Solo - (CO-H₂ resistant) Wireless |
| General Accessories | BWS1-XL-B | BW™ Solo - (H₂S) Wireless BW™ Solo - (O₂) Wireless |
| Replacement Parts | BWS1-XL-PCB1 | PCB Nitrogen Dioxide (NO₂) - Wireless PCB Oxygen (O₂) - Wireless PCB Ozone (O3) - Wireless |
| General Accessories | BWS1-XL-Y | BW™ Solo - (H₂S) Wireless BW™ Solo - (O₂) Wireless |
| General Accessories | BWS1-Z-B | BW™ Solo - (H₂S ext range) Wireless BW™ Solo - (HCN) Wireless BW™ Solo - (NH₃) Wireless |
| General Accessories | BWS1-Z-Y | BW™ Solo - (H₂S ext range) Wireless BW™ Solo - (HCN) Wireless BW™ Solo - (NH₃) Wireless |
| General Accessories | GA-NS-1 | BW Solo test/calibration cap Neck strap safety release: complete list Sampling & Testing |
| General Accessories | GA-VM-2 | BW Solo LCD G vibration motor H sensors, see Sensors' section I |