Product Description
The SG100 series is a cost-effective, IECEx/ATEX certified fixed gas detector for continuous monitoring of toxic gases, oxygen, flammable gases and VOC. It offers both 2-wire and 3-wire 4-20mA analog output, RS485 Modbus, and optional HART output, making it compatible with most control systems (PLC, DCS, SCADA). Optional wireless data transmission (LoRa/4G) allows remote data review and download.
For ozone (O₃) monitoring – a powerful oxidant used in water treatment, air purification and industrial processes – the SG100 uses an electrochemical sensor with selectable measuring ranges of 0–10, 0–20, 0–50 or 0–100 ppm and a fine resolution of 0.01 ppm. Accuracy is ≤ ±2-5% FS (sensor dependent).
Product Pictures
About O₃ (Ozone)
Ozone is a pale blue gas with a pungent odor. It is widely used for disinfection of drinking water and wastewater, air purification, food processing, and bleaching. However, ozone is a strong oxidizer and harmful to human health: short-term exposure can cause throat irritation, coughing, and reduced lung function; prolonged exposure may lead to chronic respiratory diseases. Reliable ozone detection is essential in treatment plants, industrial hygiene, and indoor air quality monitoring.
Main Product Features
- Electrochemical sensor for O₃ – Ranges 0-10/20/50/100ppm, resolution 0.01ppm.
- Flexible outputs – 2-wire or 3-wire 4-20mA, RS485 Modbus, optional HART.
- Optional 3 relays – Low/high/fault alarm relay for external device control.
- Optional wireless – LoRa or 4G for remote data access.
- Plug-and-play sensor module – Easy replacement, calibration via PC software.
- Non-intrusive configuration – Magnetic wand + remote control (safe for hazardous areas).
- Rugged & protected – IP66/IP68, die-cast aluminum housing, splash guard included.
- Compact & lightweight – 1.0 kg, comes with mounting bracket.
- Wide temperature range – Electrochemical sensor works from -20°C to +50°C.
- Certified safe – IECEx/ATEX Ex db IIC T6 Gb, Ex db ia IIC T6 Gb.
Technical Specifications (for O₃ configuration)
| Parameter |
Value |
| Gas Detected |
O₃ (Ozone) |
| Detection Principle |
Electrochemical |
| Measuring Range |
0 – 10 ppm / 0 – 20 ppm / 0 – 50 ppm / 0 – 100 ppm (selectable) |
| Resolution |
0.01 ppm |
| Accuracy |
≤ ±2-5% FS (depending on sensor) |
| Explosion-Proof Grade |
IECEx: Ex db IIC T6 Gb, Ex db ia IIC T6 Gb; ATEX: Ex db IIC T6 Gb, Ex db ia IIC T6 Gb |
| Protection Grade |
IP66 / IP68 |
| Power Dissipation |
Toxic gas <2.5W |
| Communication Mode |
4-20mA (3-wires), RS485, 1-5V; HART (optional) |
| Wireless (Optional) |
LoRa, 4G |
| Working Voltage |
12 – 24V DC |
| Relays (Optional) |
3 relays (low/high/fault alarm relay) |
| Display |
LED display |
| Working Temperature (Electrochemical) |
-20°C to +50°C |
| Working Pressure |
86 – 106 kPa |
| Casing Material |
Die-cast aluminum (standard); S316 stainless steel (optional) |
| Cable Entries |
1 × 3/4 NPT & 1 × M20 |
| Dimensions |
157.8 × 128.8 × 69.6 mm |
| Weight |
1.0 kg |
| Warranty |
1 year |
Typical Applications
- Water & wastewater treatment plants – Ozone disinfection byproduct monitoring.
- Food & beverage industry – Ozone sanitation in bottling and cold storage.
- Indoor air quality – Offices, public buildings with ozone-generating equipment.
- Pharmaceutical manufacturing – Cleanroom sterilization areas.
- Industrial hygiene – Worker exposure monitoring in printing, bleaching and chemical industries.
- Semiconductor fabrication – Ozone used in wafer cleaning.
FAQ
1. What is the accuracy of the SG100 for O₃ detection?
≤ ±2-5% FS (depending on the specific sensor).
2. What output signals are available?
Standard: 4-20mA (3-wires), RS485 Modbus, 1-5V. Optional: HART.
3. Does it have wireless capability?
Yes – optional LoRa or 4G for remote data transmission.
4. Can I add relay outputs?
Yes – optional 3 relays (low/high/fault alarm relay).
5. What is the protection rating?
IP66/IP68 – waterproof, dustproof and submersible.
6. What is the explosion-proof grade?
Ex db IIC T6 Gb / Ex db ia IIC T6 Gb (IECEx/ATEX).
7. How do I configure the detector in a hazardous area?
Use the magnetic wand or remote control – no need to open the enclosure.
8. How do I calibrate the sensor?
The plug-and-play sensor module supports calibration via Safegas PC software.
9. What is the warranty period?
1 year.
10. What is the weight?
1.0 kg (comes with mounting bracket).
Company Introduction
Shenzhen YuanTe Technology Co., Ltd. (brand: Safegas) was established in 2010 and specializes in the R&D, manufacturing, and sales of gas detection equipment and integrated systems. With over 16 years of industry expertise, the company serves sectors including oil & gas, chemicals, environmental protection, electronics, municipal engineering, agriculture, and household appliances. All products are manufactured under ISO9001 and ISO45001 management systems, holding international certifications such as IECEx, ATEX, and EMC. With an annual production capacity of over 80,000 units, YuanTe Technology supplies gas detection solutions to customers worldwide.
Company Advantages
- Established since 2010 – Over 16 years of experience in gas detection R&D and manufacturing.
- Full product range – Portable detectors, fixed transmitters, analyzers, control panels, accessories.
- International certifications – IECEx, ATEX, EMC certified for hazardous areas.
- Wide gas & industry coverage – Hundreds of gases; serve oil & gas, chemical, mining, environmental, food, pharma, and more.
- Strong R&D & quality – ISO9001 & ISO45001 certified; professional R&D team and global service network.
- High production capacity – Over 80,000 units per year with fast delivery (5–7 working days typical).
- Global customer support – 24/7 after-sales service and solutions tailored to diverse industries.
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