DO 450 Meter only: Meter, two AA batteries (01X651634)

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 â€“ Set a visible reminder when it is time to recalibrate the meter

::	Manual barometric pressure and salinity correction

::	Selectable ÂºC or ÂºF â€“ 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 â€“ Easy USB or RS232 output with optional data cables

::	Built-in real-time clock stamps stored data and calibration data with time and date â€“ Meets standards for GLP (Good Laboratory Practices)

::	500 hours battery life or use optional universal power adapter

::	Built-in stand with wall-mount â€“ Allows for easy benchtop measurement and storage

Specifications

Product Specification	Description
Dissolved Oxygen
Range	0 to 200 %; 0 to 20 ppm/mg/L
Resolution	0.10 %; 0.1 ppm/mg/L
Accuracy	Â±2 %; Â±0.1 ppm or mg/L up to 8; Â±0.2 ppm or mg/L above 8
Calibration	Zero and saturation
Temperature
Range	0.0 to 50.0 ÂºC (0.0 to 122.0 ÂºF)
Resolution	0.1 ÂºC/ÂºF
Accuracy	Â±0.5 ÂºC; Â±0.9 ÂºF
Calibration	Offset in 0.1 increments, Â±10 ÂºC or Â±18 ÂºF
Others
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)