DO-66 Pen-Type Dissolved Oxygen Tester

Product Overview
The DO-66 portable dissolved oxygen analyzer is designed for convenient on-site
testing. It consists of two core parts: sensor and electronic control unit. The
sensor adopts membrane dissolved oxygen electrode; the electronic unit
integrates operational amplifier and microcontroller chip, equipped with
automatic temperature compensation function.
Core Advantages
Portable Design
Compact and lightweight body.
Equipped with PP engineering plastic carrying case for easy outdoor transport
and storage, sturdy and durable.
Long Battery Life
Powered by 2 AAA batteries, supporting up to 600 hours of continuous operation.
Low battery reminder function: the screen will pop up warning when power is
nearly exhausted to remind users to replace batteries timely.
Waterproof Construction
Full body waterproof except battery compartment to fully protect internal
circuits.
Dual-Point Auto Calibration
Independent calibration keys for 0% and 100% saturation, simple and fast
calibration operation.
Automatic Temperature Compensation
Automatically identify and convert readings to compensate deviation between
actual sample temperature and standard temperature, ensuring precise
measurement data.
Technical Specifications
Item Parameters
Model DO-66
Measuring RangeDissolved OxygenTemperature 0~199.9% saturation, 0~16.50
mg/L0~50℃ (32~122℉)
ResolutionDissolved OxygenTemperature 0.1% saturation, 0.01 mg/L0.1℃
AccuracyDissolved OxygenTemperature ±1.5% Full Scale (F.S)±1℃ (±33.8℉)
Residual Current Reading does not return to zero when ≤0.15 mg/L
Response Time ≤15 seconds
Temperature Compensation Range 0℃~50℃
Power Supply 2 × AAA batteries
Sample Operating Temperature 0℃~50℃
Overall Dimensions 207mm × 32mm × 36mm
Net Weight 85g (batteries excluded)

Minimum Order: 10 bags