Apera InstrumentsEC60 Premium Conductivity Pocket Tester, ±1% Accuracy, Easy Switch of EC/TDS/Salinity, Replaceable BPB Sensor, ±0.5°C Temperature Sensor

The Apera Instruments EC60 Premium EC/TDS/Salinity Pocket Tester is handheld and portable kit that enables the user to test the following Electrical Conductivity measurements to an incredibly accurate degree:1. Conductivity2. TDS (total dissolved solids)3. Salinity4. TemperatureThe first thing you really should do if you’re thinking of picking one of these up is take a look at the product page on the Apera Instruments website. On there you’ll find videos and much more information about the product than detailed on the Amazon listing.The kit comes with everything you need to effectively test the electrical conductivity of your soil, hydroponics setup or pool. Included in the set you have two calibration solutions (4.00 and 7.00). You use the 7.00 calibration solution first, to ensure the pocket tester is calibrated to 7.00, then bring it down to 4.00 with the second calibration solution. The whole calibration process is quick and simple to do and will ensure your pocket tester returns the most accurate readings.The setup of the kit is designed to be as user-friendly as possible, giving you everything you need in a handy unbranded protective storage case.From using the pocket tester for a few weeks now I’m incredibly happy with its performance and the results. It’s so incredibly quick and easy to use and the results are incredibly accurate. I really can’t recommend the pocket meter enough for your hydroponic setup.

This is a superb bit of kit.Comes in a bland medical looking plastic box but that does a great job of keeping everything tidy. You don't get this for the looks I guess.The kit is really easy to use. It includes calibration solution so you can trust what you are seeing.Great bit of kit for keeping an eye on hydroponics.The device is well made with a backlit easy to read screen.There are plenty of videos on their website for instruction.

Works well for monitoring fertiliser solutions

Got this heater as I am preparing to upgrade my tropical tank from a 21 litre size, so needed a higher wattage heater. Seemed pretty straightforward to assemble and since I'd done this before I didn't need to read the instructions to make sense of how to assemble the parts - although I did think the suckers were slightly over complicated as they come in two parts. This was proven to be the case since as soon as it was assembled and then again whilst it was being attached to the tank, the actual sucker parts kept falling off. Box instructions also said the red light 'should' turn on once the heater is plugged. It didn't. So I had no idea if the heater was working until the thermometer in my tank told me otherwise. Bit annoying.Despite all this, it does appear to maintain a consistent water temperature, so does what it needs to. Would recommend.

Purchased for hydroponic growing. Bought a cheap meter previously which I though 'did the job', but I was getting nutrient burn far too frequently, which left me scratching my head. It was only after receiving and calibrating this item that I came to learn my old meter was under-reporting by a whopping 300ppm!The fact that it's 100% waterproof makes it easy to be very lazy taking readings; switch on the backlight, throw it in the tank, review within a minute if the thermometer takes a while to adapt (sensible compensation undertaken by the unit). Despite the probe being quite wide, there are two empty vials in the kit, making it easy to calibrate without having to waste much fluid at all.If the reservoir temperature is close to the temperature of the probe, you'll get a very accurate reading in under 30 seconds - pretty fantastic. The fact that the probe is a replaceable part gives confident this is a tool that will last a long time.Very happy customer.