YSI 550A Handheld Dissolved Oxygen Instrument

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Cooperation is very satisfactory and the Company of the past few years, we are very willing to continue long-term cooperation.

—— Dean

The company considerate after-sales service ,And try their best to meet the requirement of customers. We will be a long-term cooperation.

—— Albert

Easy to talk with, very professional and fast service, the quality is super good. Even better than we ordered from Germany!!

—— Germany Fabian Scherb

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Name: YSI 550A Handheld Dissolved Oxygen Instrument
Brand: Beijing Water Meter Co.,Ltd.
SKU: 550A
Availability: InStock

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Detailed Product Description

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dissolved oxygen sensor

YSI 550A Instrument General Specifications

Cables		12, 25, 50, or 100- foot lengths
Calibration		Push-button, built-in calibration chamber
Certifications		CE, IP-67, High-impact resistance
Dimensions		11.9 cm width x 22.9 cm length (4.7 in x 9 in)
Display		Large, backlit
Medium		Fresh, sea, or polluted water
Parameter Compensation		Automatic temperature compensation for dissolved oxygen Automatic salinity compensation with manual salinity input from 0-70 ppt for dissolved oxygen Altitude compensation for calibration
Power		4 alkaline C-cells; Over 2000 hours at 25°C; Low battery indicator on display
Warranty		3-year instrument; 1-year DO module
Weight with Batteries		0.91 kg (2 lbs)

YSI 550A System Specifications (Instrument with Cable & Probe)

	Sensor Type	Range	Accuracy	Resolution
Dissolved Oxygen (%)	Steady-state Polarographic	0 to 500% air saturation	0 to 200%: ±2% of reading or 2% air saturation, whichever is greater; 200 to 500%: ±6% of reading	0.1% air saturation or 1%; selectable
Dissolved Oxygen (mg/L)	Polarographic	0 to 50 mg/L	0 to 20 mg/L: ± 0.3 mg/L or 2% of reading, whichever is greater; 20 to 50 mg/L: ±6% of reading	0.01 mg/L or 0.1 mg/L; selectable
Temperature	Thermistor	-5 to 45°C	±0.3°C	0.1°C

Ordering Guide

Item #	Description
550A-12, 25, 50 or 100	Instrument with 12, 25, 50 or 100-foot cable and probe
550A-12CC, 25CC, 50CC, or 100CC	Instrument with 12, 25, 50 or 100-foot cable and probe with carrying case
5908	Membrane kit, 1.25 mil PE (6 caps and bottle of KCl)
559	User-replaceable DO electrode