I thought I would wait until I had my seneye running for a few days prior to writing.
5 days in now and I am impressed. On opening the box the build quality was good with nice shiny cable and nice feel to the device. You have a slide that fits into your device that measures the pH and ammonia levels and you have to soak this in tank water for 24hours before you can use it so this was a bit of a bummer but heyho! (don't be tempted to not soak as it will work properly!).
So with slide pre-soaked i set about up my device. I had already downloaded the seneye connect pc app and installed it in my pc and had set up my seneye account prior to buying so all this was already in place. I connected the device and popped in the pre-soaked slide (which was fiddly as you cannot touch the sensing parts) and plopped it into my tank.
the device takes around an hour to configure itself to your tank and to get the necessary data from the seneye.me website and I have to honest that my device did not function as expected once this hour was up. I had great difficulty setting my own water parameters and it turned out after a few emails to tom at seneye (who is a top bloke by the way) that it was necessary for seneye to update their own web hosting applications in order for people to do this.
It has taken 5 days of work on the part of seneye for me to get my device to work as intended but now that it is working properly I am very impressed.
I normally use an api master test kit for my water monitoring and I feel that the seneye device is more accurate than this. the kit only gives pH values in around 0.2-0.4 increments but the seneye device will gives reading in thousandths of a point, eg my current pH is 7.060!! My api master kit tells me ony 7.0. I know this is a minor detail but at the minute I am experimenting with RO water in my discus tank and the device tells me the minutest of changes in pH as I add or remove water.
the temperature reading is accurate also and the ammonia levels are given on the seneye.me website in both nh3 and nh4 which helps me to fathom out my ammonia toxicity levels much better .
so overall for £60 I think it is a very good piece of kit. It has had its teething troubles as any new device probably will do but seneye seem very willing to address these issues and work out a fix within a few days so I wouldnt let this put you off.
My only negative point is that the replacement slides are subscription only at the moment for £6 a month in the UK and you can only get these from seneye direct. There are no plans to sell them in the LFS to my knowledge. there are also a number of exciting updates coming such as a digistrip reader which measures a further 5 parameters (nitrite,nitrate,gh,kh and chlorine) and seneye say this will be available shortly.
so for those who love gadgetry or who simply want an idea of what is going on in their from hour to hour the seneye device will meet your needs i feel. there will be those who feel it is a waste of money but each to their own. it is your money at the end of the day and I think that the price vs information equation shows it is good value.