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DFRobot Gravity - analog X dissolved oxygen sensor - SEN0237-A
Dissolved oxygen analog sensor compatible with Arduino. The module measures the concentration of dissolved oxygen in the water to determine its quality. It can be used, for example, in aquariums with fishes.
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Description
Dissolved oxygen analog sensor compatible with Arduino. The module measures the concentration of dissolved oxygen in the water to determine its quality. It can be used, for example, in aquariums with fishes, too small content of dissolved oxygen in the water, makes breathing difficult for organisms living in it, which leads to shortening their life. The probe does not require polarization time, it is always available. Solution for filling and membrane cover are interchangeable. Sensor kit for self-assembly.
Botland is an official distributor of DFRobot open-source hardware. Every roboticist and practitioner of emerging technology has heard at least once of DFRobot solutions, built above all around Arduino. Our range holds original DFRobot products only.
Example of connecting to Arduino
The board connects to the Arduino module via analog line.
The module works in conjunction with extension boardGravity DFRobot IO Expansion Shield. |
| PIN | Description |
|---|---|
| A | The analog output signal from 0 V to 3 V |
| + | Supply voltage from 3.3 V to 5 V |
| - | The ground of the system. |
| BNC | Probe cable |
Due to the policy of export and import, the acidic and alkaline solution can not be transported by air. In this regard, the solution for filling is not included, it must be purchased separately. The device can't work without filling solution. A chemical solution of 0.5 mol/L NaOH must be purchased separately inthe chemical store. |
Note:
- The solution is 0.5 mol/L NaOH. Before use, you must fill it to the membrane cap. During operation, care must be taken, the gloves must be worn. If the solution gets on your skin, immediately rinse it off with plenty of water.
- The membrane is delicate, you should avoid sharp objects so as not to damage it.
- Before use, carefully stir the solution so that the oxygen was evenly distributed in the water.
Specification
- Supply voltage: from 3.3 V to 5 V
- Output signal: 0 V to 3 V
- Probe type: galvanic
- Detection range: 0 to 20 mg/L
- Response time: up to 98% within 90 seconds
- Pressure range: 0 to 50 PSI
- The electrode's service life: 1 year
- The maintenance period: the period of replacing the membranes: from 1 to 2 months in the muddy water, from 4 to 5 months in clean water
- The period of replacing the solution: once a month
- Cable length: 2 m
- Probe connector: BNC
- Signal connector: analog interface Gravity
- Dimensions: 42 x 32 mm
Useful links
| Name | Value |
|---|---|
| Width | 33.5 cm |
| Height | 8 cm |
| Depth | 12 cm |
| Weight | 0.26 kg |
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The full delivery terms are on the page Delivery and payment.
30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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