Gravity: Analog Dissolved Oxygen Sensor / Meter Kit For Arduino

SKU: SEN0237-A Brand: DFRobot

This is a dissolved oxygen sensor kit, which is compatible with Arduino...

$289.95 AUD, inc GST

$263.59 AUD, exc GST

Available with a lead time
Expect dispatch between Dec 02 and Dec 04

Quantity Discounts:

3-5 $255.68 (exc GST)
5+ $250.41 (exc GST)

Introduction

This is a dissolved oxygen sensor kit, which is compatible with Arduino microcontrollers. This product is used to measure the dissolved oxygen in water, which reflects the water quality. It is designed for use in measuring water quality, this is used in fields such as aquaculture, environment monitoring, natural science and so on.
There’s an old saying regarding to keeping fish, “Good fish deserve good water”. Good water quality is very important to aquatic organisms, and dissolved oxygen is one of the important parameters. Low dissolved oxygen in the water will lead to difficulty in breathing for aquatic organisms, which may threaten the lives of aquatic organisms their lives.

This sensor kit helps you quickly to build your own dissolved oxygen detector. The probe is galvanic, with no need for polarization, and available at any time. The filling solution and membrane cap are replaceable, leading to a low maintenance cost. The signal converter board is plug and play, with wide compatibility. With open-source code and detailed tutorials provided, this product is very suitable for your projects in detecting the dissolved oxygen concentration.

Arduino Dissolved Oxygen (DO) Sensor Connection Diagram

Arduino Dissolved Oxygen (DO) Sensor Connection Diagram

SPECIAL INSTRUCTIONS:
Due to the International Import and Export Policy, the corrosive solution (acid & alkaline solution) cannot be shipped internationally by the methods we use. The filling solution is not included in the kit. You have to purchase it locally or manufacture it yourself, refer to WiKi FAQ-Q4. It can’t work without a filling solution! Please be cautious when using this device initially

1. The filling solution is 0.5 mol/L NaOH solution (you can make this using lye, weigh it to 1 mol, then mix with 2 L of distilled water). You need to pour it in the membrane cap before use. Note that this solution is corrosive, so please wear gloves and safety glasses! If the solution accidentally drops onto skin, wash with of water immediately.
2. The oxygen permeable membrane in the membrane cap is sensitive and fragile. Be cautious when handling it. Fingernails or other sharp objects should be avoided.
3. The sensor will consume a little oxygen during the measurement. Gently stir the solution and let the oxygen to be distributed evenly in the water.

FEATURES

Dissolved Oxygen Probe:
1. Galvanic probe
2. Filling solution and membrane cap is replaceable

Signal Converter Board:
1. 3.3~5.5V wide-range power supply
2. 0~3.0V analog output, compatible with all microcontrollers with ADC function.
3. Standardised Gravity interface

Specifications

Dissolved Oxygen Probe

Type: Galvanic Probe
Detection Range: 0~20mg/L
Response Time: Up to 98% for a full response, within 90 seconds (25°C)
Pressure Range: 0~50PSI
Electrode Service Life: 1 year (normal use)
Maintenance Period: Membrane Cap Replacement Period: 1~2 months (in muddy water); 4~5 months (in clean water) Filling Solution Replacement Period: Once every month
Cable Length: 2 meters
Probe Connector: BNC

Signal Converter Board

Operating Voltage: 3.3~5.5V
Output Signal: 0~3.0V
Cable Connector: BNC
Signal Connector: Gravity Analog Interface (PH2.0-3P)
Dimension: 42mm * 32mm

Documents

Parts List

Galvanic Dissolved Oxygen Probe with Membrane Cap x1
Spare Membrane Cap x1
Signal Converter Board x1
Gravity Analog Sensor Cable x1
Waterproof Gasket x2
Screw Cap for BNC Connector x1
Plastic Dropper x2

This product is listed in:

Sensors>Liquid & Flow

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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