Simple, fast, economical and practical

The screen display content is rich and practical, and the software menu is intuitive and convenient

● The electrode status icon helps you understand the status of dissolved oxygen electrodes in an intuitive way.

● 30Group measurement data storage

● Last calibration data echo

● One-click switching measurement unit mg/L, % or ppm

● automatic /Manual end point, automatic /Manual temperature compensation

● Battery power display, the power supply can be turned off automatically without operation for 10 minutes, or the power supply can be turned on normally

No need to warm up waiting

● The dissolved oxygen electrode of the primary battery does not require preheating and polarization, and does not require preheating for 15 to 240 minutes before use of the dissolved oxygen electrode. It can be used at any time.

● The instruments and electrodes are basically free of maintenance

Multifunctional industrial styling design

● IP54 Waterproof and dustproof

● Compact key design, one-hand operation

● The instrument legs can be upright and lying, and the screen viewing angle can be adjusted when using the desktop

● Electrode clips can be installed on any side of the instrument, and the wrist straps are prevented from falling

● Product Identification Zone helps to quickly identify and manage assets

Standard configuration:

ST300D Host Instrument +IP54 Waterproof and dustproof kit +Wristband +Electrode clip +4Battery No. 7 +STDO11 Dissolved oxygen electrode of primary battery +STTEMP30 Temperature electrode

Measuring technical parameters index:

Measuring technical parameters Measurement range: (0.00-19.99) mg/L      Display error: ± 0.30 mg/L

Other indicators:

Measurement range

%        0.0·199.9%；200-400%

mg/L     0.00 ~ 19.99;   20.0 ~ 45.0mg/L

ppm      0.00 ~ 19.99;   20.0 ~ 45.0ppm

Temp.      0 ~ 50 ˚C

Measure resolution

%             0.1%; 1%

mg/L          0.01mg/L; 0.1 mg/L

ppm           0.01ppm; 0.1 ppm

Temp.          0.1 ˚C

Atmospheric pressure range

mmHg    375 ~ 825 mmHg

mbar     500 ~ 1100 mbar

hPa      500 ~ 1100 hPa

Atmospheric pressure resolution

mmHg      1 mmHg

mbar       1 mbar

hPa        1 hPa

Measurement accuracy              ± 1%; ± 0.3 ˚C

Salinity compensation range /Resolution 0.0 ~ 40.0 ppt, 0.1 ppt

Calibration 1 and 2 points calibration

Power supply 4 batteries No. 7, 6 V DC, 5mA, About 250 hours

Size 90 W x 170 D x 35 H mm

Weight 0.18 kg

Display LCD

IP Protection level IP54

Temperature compensation    ATC or MTC, Cinch interface, NTC 30 kΩ

Material

Housing: Reinforced ABS

Form: PMMA(Polymethyl methacrylate )

button: PET membrane

Environmental conditions

Temperature: 5-40 ˚C

Relative humidity: 5%-80% (No condensation )

Altitude: up to 2000 meters