Products > By Parameter > Dissolved Oxygen

Eutech DO 450

Product Features

Dissolved Oxygen / Temperature
Affordable optical RDO technology reduces maintenance time and costs

:: Maintenance free optical probe with no electrolyte eliminates hassle of replacing delicate membranes and salt build up from refilling solutions
:: Durable waterproof and dustproof design with IP67 rating
:: Large, backlit custom display provides measurement with temperature
:: Switch between % saturation and mg/L (ppm) dissolved oxygen with a press of a button
:: Calibration due alarm – Set a visible reminder when it is time to recalibrate the meter
:: Manual barometric pressure and salinity correction
:: Selectable ºC or ºF – Choose the unit to best fit your application
:: Ready indicator, manual or automatic measurement hold feature and optional automatic shutoff function
:: Store up to 500 data sets – Easy USB or RS232 output with optional data cables
:: Built-in real-time clock stamps stored data and calibration data with time and date – Meets standards for GLP (Good Laboratory Practices)
:: 500 hours battery life or use optional universal power adapter
:: Built-in stand with wall-mount – Allows for easy benchtop measurement and storage



Sensor Cap



Product Specification

Dissolved Oxygen  
Range 0 to 200 %; 0 to 20 ppm/mg/L
Resolution 0.10 %; 0.1 ppm/mg/L

±2 %; ±0.1 ppm or mg/L up to 8;
±0.2 ppm or mg/L above 8


Zero and saturation

Range 0.0 to 50.0 ºC (0.0 to 122.0 ºF)
Resolution 0.1 ºC/ºF
Accuracy ±0.5 ºC; ±0.9 ºF
Calibration Offset in 0.1 increments, ±10 ºC or ±18 ºF
Display Custom LCD with backlight
Memory Stores up to 500 data sets
Output USB or RS232
Real-Time Clock Time and date stamp on calibration and stored data
Temperature Compensation Yes
Pressure & Salinity Compensation Manual
Power Two AA batteries (included), >100 hours (without backlight); AC adapter (optional)
Dimensions (L x W x H)

Meter: 7 7/8" x 3 1/8" x 2 1/4" (20 x 8.3 x 5.7 cm)
Boxed: 9 1/8" x 9 1/8" x 2 3/4" (23 x 23 x 7 cm)

Weight Meter: 1 lb (0.5 kg)
Boxed: 1.4 lb (0.7 kg)

Order Information

Order No.

ECDOWP45000 DO 450 Meter Only: Meter, two AA batteries
ECDOWP45003 DO 450 Meter & Electrode: Meter, RDO electrode with sensor cap, two AA batteries
ECDOWP45003K DO 450 Meter Kit: Meter, RDO electrode with sensor cap, two AA batteries, hard carry case, USB cable, RDO stainless steel weight/guard, RDO calibration chamber
RDO3M RDO probe, 3 m (10 ft) cable
RDO6M RDO probe, 6 m (20 ft) cable
RDO15M RDO probe, 15 m (50 ft) cable
RDOCAP Replacement RDO sensor cap
RDOWEIGHT RDO weight/guard, screw thread to attach to probe
RDOCALCHAMBER Calibration chamber
60X426401 Optional 100 / 240 VAC SMPS power adapter, 9 V, 6 W
MINIPHONEUSB USB cable for 450 series, mini phone plug to USB
30X427301 RS232 cable for 450 series, mini phone plug to RS232 9-pin (F)
ECDOZEROSOLN Zero oxygen solution, 0 % DO, 480 mL

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