
High-Performance Portable Dissolved Oxygen Meter for Industrial & Aquaculture Wholesale
For commercial distribution networks, engineering procurement teams, and commercial aquaculture operators, keeping water systems stable demands durable instrumentation. The DO-9100 Pen-Type Intelligent Portable Dissolved Oxygen Analyzer represents the perfect balance between clinical-grade laboratory accuracy and rugged, field-ready engineering.
As a leading portable dissolved oxygen meter manufacturer, our equipment is built from the ground up to minimize maintenance down-time while maintaining strict competitive price margins for bulk sourcing.
Applications: Engineered Across Industries
The DO-9100 series is optimized for six key high-demand sectors:
- Commercial Aquaculture: Vital for both freshwater aquaculture facilities and high-salinity applications bred in sea water (e.g., shrimp and intensive fish farming pen arrays).
- Industrial Water Testing & Paddy Fields: Reliable performance in heavy runoff conditions, wastewater processing, and agricultural tracking.
- Laboratory & Medical Treatment Processing: Ultra-precise parameters designed for scientific control samples and clinical environments.

Robust Modular Design & Industrial Specifications
The structural breakdown shown in portable dissolved oxygen probe.jpg and dissolved oxygen portable meter dimension.jpg highlights its engineering advantages over generic options on the market:
- Heavy-Duty Probe Interface: Designed with a secure metal knob connection. This ensures the probe remains locked tightly during deep-immersion testing and will not fall off in fast-moving water currents.
- Modular Polarographic Probe: Utilizes a highly stable gold and silver core wrapped in an easily swappable oxygen-permeable membrane module.
- High-Definition Backlit Display: Equipped with an HD green backlit LCD screen, delivering highly visible, clear readings at night or inside dark industrial pump stations.
- IP67 Waterproof Housing: Sealed battery compartment housing 3 * 1.5V long-life button cells, protecting internal electronics from complete submersions.

Technical Specifications Matrix
Model Variant: DO-9100 Pen-Type Intelligent Dissolved Oxygen Analyzer[cite: 1]
| Parameter | Factory Specification & Value |
|---|---|
| DO Measurement Range | $0.0 – 30.0 \text{ mg/L}$ | $0.0 – 300.0\%$ Saturation[cite: 1] |
| Measurement Resolution | $0.1 \text{ mg/L}$ | $0.1\%$ Saturation Threshold[cite: 1] |
| System Accuracy | $\pm1.5\% \text{ F.S.}$ (Full Scale Accuracy Profile)[cite: 1] |
| Temperature Testing Arc | $0.0 – 40.0^\circ\text{C}$ | $32.0 – 104.0^\circ\text{F}$ (Resolution: 0.1°C/F)[cite: 1] |
| Temperature Accuracy | $\pm0.5^\circ\text{C}$ across testing threshold[cite: 1] |
| Temperature Compensation | Automatic Temperature Compensation ($ATC$ from $0 – 50^\circ\text{C}$)[cite: 1] |
| Calibration Protocol | 1-point or 2-point intelligent automatic calibration ($0.0\%$ or $100.0\%$ in air)[cite: 1] |
| Response Time ($T_{90}$) | $\le 45\text{ seconds}$ (Fastest profiling recorded at stable $20^\circ\text{C}$)[cite: 1] |
| Sensor Electrode Type | Polarographic Probe Assembly (Module Method Type)[cite: 1] |
| Waterproof Rating | IP67 Completely Waterproof Enclosure[cite: 1] |
| Power Configuration | $3 \times 1.5\text{V}$ Button Battery cell array $(LR44)$ (Low Battery Indicator Enabled)[cite: 1] |
| Auto-Shut Off Target | 15 Minutes power-saving idle shutdown mechanism[cite: 1] |
| Physical Dimensions | Handle Instrument: $155\text{mm} \times 35\text{mm}$ (Full Body Dimensions: $183 \times 37 \times 37\text{mm}$)[cite: 1] |
| Cable Line Layout | Heavy-duty industrial extended cable: $1.15\text{ Meters}$ |
| Net Structural Weight | $80\text{g}$ ultra-lightweight tactical handheld handle[cite: 1] |
⚙ Probe Interface Lock
Equipped with an advanced metal knob configuration verified in portable dissolved oxygen probe.jpg. This system secures the connection to ensure the probe remains tightly fixed, preventing accidental drop-offs during turbulent field operations.
⚙ Environmental Limits
Operates smoothly in atmospheric humidity thresholds up to Maximum $90\%\text{ RH}$ under an operational temperature range of $0 – 40^\circ\text{C}$ ($32 – 104^\circ\text{F}$)[cite: 1]. Safe for intensive outdoor aquaculture and processing environments.
⚙ Compensation Alert
The baseline DO-9100 handles temperature modifications dynamically, but requires manual offset scaling for active salinity or extreme barometric variances[cite: 1]. For sea water distribution nodes, see our app-controlled **BLE-9100 model**[cite: 1].
Wholesale Sourcing & Technical Maintenance FAQ
What makes the DO-9100 the best portable dissolved oxygen meter for wholesale supply chains?
Do you support direct wholesale of portable dissolved oxygen meter shipments with custom OEM branding?
How should the polarographic probe be stored or maintained during extended warehousing?
Is this an economical portable dissolved oxygen meter option for high-salinity marine environments?
What items are included inside each standard commercial wholesale package?
Partner with a Direct-to-Factory Manufacturer
Streamline your supply chain with tier-one pricing, scalable production slots, and verified industrial testing reliability. Request our bulk price breakdown sheet, OEM terms, and freight estimations today.
