Expert in Water Quality Measurement and Water Treatment Project Since 2007
Safe to Use Optical Dissolved Oxygen Probe Made in China Bulk Production
Product Overview
- DOG-209FA Industrial optical/polarographic dissolved oxygen sensor, manufactured in China for bulk production.
- Designed for continuous dissolved oxygen measurement with a steel-mesh permeable membrane and options for U-PVC or 316L stainless steel housings.
- Made for reliable field use with configurable cable length and standard temperature compensation options.
Product Features
- Measurement range 0–20 mg/L; detection limit 0.01 mg/L (20°C); measurement error < ±0.1 mg/L.
- Permeable membrane: 100 µm steel-mesh (grit mesh metal) for high stability and mechanical resistance.
- Low drift (60 days.
- Polarization time 60 min, minimum flow rate 2.5 cm/s, polarization voltage 0.7 V, output ~50–80 nA per 0.1 mg/L (max 3.5 µA).
- Operating water temperature range 0–60°C; cable length 5 m (ODM options available).
Product Value
- Cost-effective, China-made alternative comparable in performance to imported sensors.
- Designed to reduce maintenance and downtime—suitable for long-term, continuous monitoring.
- Environmentally conscious manufacturing and company quality controls ensure dependable green products and services.
- Flexibility (material and cable options) makes it adaptable to many installations and system integrations.
Product Advantages
- Robust metal-mesh membrane improves durability and resistance to harsh environments versus traditional diaphragms.
- High stability, low drift, and long sensor life reduce recalibration and replacement costs.
- Tight accuracy and low detection limit support precise process control and regulatory compliance.
- Proven design from a company with quality inspection systems and reputation in domestic and international markets.
Application Scenarios
- Urban sewage treatment plants for continuous DO monitoring and process control.
- Industrial wastewater treatment and process monitoring.
- Aquaculture systems where reliable DO measurement is critical to stock health.
- Environmental monitoring (rivers, lakes, reservoirs) and other field applications requiring durable, continuous DO sensing.