I received my Kamoer KH Carer Friday. I got it hooked up and calibrated Saturday. It test alkalinity and also give a pH reading. My understanding is the pH may not track to one calibrated for tank water since it is calibrated at different cal points. It can also add buffering to the tank to maintain the alkalinity. The test frequency is from once a day to once every hour. I set mine for three times a day. It appears to be built well. It was not too bad setting it up and calibrating it. I also set it up to use Randy's recipe for alkalinity buffering. Below is a photo after setup and calibration. Water remains in the beaker after testing to keep the pH probe wet. It will drian that water and refill before testing. It has a stirrer built in. I currently have it set to rinse twice since I am dumping the water back into the tank. It adds the testing reagent a small amount at a time and stirs after each so it does take a while to test, about 30 minutes.
This is a side view. There is an empty 10 gallon tank beside it that is there just in case of emergency need.
Here is a view from the side with the pump heads. The clear door is kept closed with magnets and can easily be pulled open.
Below is a photo with the side door open.
Below is a photo of the back of the unit. The green tubing is water coming from the tank. The yellow tubing is from the testing reagent tank. The black tubing is from the KH buffer tank. The blue tubing goes to the tank and is the one used to dispense the buffering agent to the tank. The red is the waste from the testing and in my case it goes back into the tank.
Below is the readings from the first test. The pH is 8.0 and the alkalinity is 8.4. After the test completed I check the pH on my Hydros and it was reading 8.06. So those seem close enough for me considering that the probe on the Hydros is about 1.5 years old.
I have only had it up and running for a few days but so far I am impressed with it. I will have to post some screenshots of the app once it runs for a while. It is the same app that is used with the Kamoer dosing pumps. Below is a Hanna test done right after the first test on the Kamoer.
I have been looking into this KH tester, but I cannot find information on the reagents used or where to purchase. Can you advise? Thanks!