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The galvanic electrode can be used immediately after being powered on without the wait time typically associated with dissolved oxygen meters
With a simple calibration process, quick delivery of measurements and automatic temperature compensation, Starter 300D is both easy-to-use and accurate.
The automatic or manual endpoints allow the user to easily recall the last calibration data and stored information with one quick touch.

Measurement Range	0.00 – 19.99; 20.0 – 45.0 mg/L; 200 – 400%; 0 – 50 °C
Measurement Resolution	0.1 mg/L; 1 mg/L; 0.1%; 1%; 0.1 °C; 0.1 ppm; 1 ppm
Calibration	2 Point
Temperature Compensation	Yes
Display	LCD
Working Environment	5°C – 40°C, 80%RH, non-condensing
Working Environment	41°F – 104°F, 80%RH, non-condensing
Net Weight	0.16 kg (0.35 lb)
Temperature resolution	0.1 °C
Electrode	STDO11 (Included); STTEMP30 (Included)
Parameter	Dissolved Oxygen
Resolution (DO)	0.01; 0.1
Measurement Range DO (%) (ppm)	0 % – 200 % ; 200 % – 400 % ; 0 ppm – 20 ppm ; 20 ppm – 45 ppm
Measurement Range (Temperature)	0 °C – 50 °C
Accuracy	± 0.3 mg/L; ± 1%; ±0.3 °C
Resolution Range (DO)	0 – 19.9 ; 20 – 45
In-use cover	No
Accuracy ± (Temperature)	0.3 °C
Temperature Sensor	30 KΩ NTC
Battery Life	250 Hours with Disposable Batteries
Dimensions (Width)	90.0 mm (3.54 in)
Dimensions (Height)	35.0 mm (1.38 in)
Dimensions (Length)	170.0 mm (6.69 in)
Power	4 AAA (LR03) Batteries (Included)
Accuracy DO	1 %

Country of origin	CN
Customs tariff number	9027102000