[TriEmbed] Anybody have any experience with electronic pH sensors

[Glen Smith]

The spark fun site has plenty of reviews that indicate that it is flakey to
use and may give a fixed 7.00 reading after soldering it up. I think the
test tube looking thing that you are seeing is for storing the sensor,
according to the documentation, once calibrated, the sensor should not be
allowed to dry out. "When it's not in use keep it in the supplied soaker
bottle. Periodically change out the storage solution in the soaker bottle
with new storage solution."

Reading up on the OceanX prize it looks like they are looking for new
sensors, are you just using this as a starting point? Or are there
different categories?

Glen

- Thumbed one letter at a time on a 2.25 x 1.25 inch Galaxy smartphone
keyboard, please forgive any errors.
On Mar 29, 2014 10:34 AM, "Jeffrey Crews"
<cruzetti at gmail.com<javascript:_e(%7B%7D,'cvml','cruzetti at gmail.com');>>
wrote:

> Martin et al:
>
> I thought you were talking about solid-state pH sensors, like ISFET
> sensors? That one from Sparkfun looks like a standard glass pH probe, which
> are a huge pain, esp in field use.
>
> jsc
>
>
> On Sat, Mar 29, 2014 at 10:01 AM, Martin Brooke <martin.brooke at duke.edu<javascript:_e(%7B%7D,'cvml','martin.brooke at duke.edu');>
> > wrote:
>
>> Probably
>> https://www.sparkfun.com/products/10972
>>
>>
>>
>>
>>
>>
>> On Fri, Mar 28, 2014 at 2:58 PM, Pete Soper <pete at soper.us<javascript:_e(%7B%7D,'cvml','pete at soper.us');>
>> > wrote:
>>
>>>  Which low cost sensor are you leaning toward?
>>> -Pete
>>>
>>> On 03/28/2014 02:02 PM, Martin Brooke wrote:
>>>
>>>  I am going to have a go at the Ocean X prize and was thinking of using
>>> a low cost solid state pH sensor.
>>>  I wondered if there were any tips or advice.
>>>
>>>
>>>
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>>
>> --
>>
>> Martin Brooke
>>
>> --
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