How do you calibrate ibs th 2?
Hello,
It can be calibrated via the Engbird app.

For example, if the sensor is 2 degrees lower than the actual reading, please enter 2 in the temperature calibration settings, then please click on the blank position on the current page and it will automatically save the settings.
The same applies to humidity calibration settings.
So if i dont have an extra reliable thermometer, i just use the local weather report to calibrate?? Ughs!
The IBS-TH2 is factory calibrated. In general, new products do not need to be calibrated again.
If no other thermometer is available for comparison, please test the IBS-TH2 by placing only the probe section (in the red box in the picture) in ice water for comparison. Please take care not to completely immerse the IBS-TH2 in water.
After the calibration is completed, please use a dry cloth or paper towel to dry it in time.

So once you have put the sensor in the ice water does it automatically recalibrate or do you have to perform a specific function?
Hello,
If its readings are off, please adjust them manually through the app’s calibration function.
For example, the current reading is 10 degrees, but the reading is 8 degrees, please set the temperature calibration value to 2
If the current reading is 10 degrees, but the reading is 13 degrees, please set the temperature calibration value to -3
So the Calibration method is to use external temp probe into each of my IBS-TH2 plus sensors, I notice a difference in Display on sensor to Inkbird app temp. I have 6 of IBS-TH2 Plus sensors all with temperature probes as well as 3 temp & Humidity Probes. All read Different with internal T&H displayed on each of the 6 IBS-TH2 Plus Displays. Swapping probes ramdomly between each of the TH plus.
Results in Different readings every swap.
To add further issues using Inkbird app vs Engbird app. Requires Calibration offsets to match ALL Internal Display & App settings to ALL BEING EXACTLY SAME using Offset’s setting for each sensor to be Accurate.
All are sitting side by side in same location.
To add more confusion ALL IBS-TH2 Plus Sensors are connected to IBS-M2 with Internal Temperature on its Display DIFFERENT to the 6 Bluetooth connected IBS-TH2 Plus sensors.
IBS-M2 is connected to the Cloud, via WiFi Router. All logging the readings.
So how do I calibrate all these variations in Temperature to get ALL TO BE SAME ACCURATE READING on Each Sensor & Gateway Display, as well as measurement displayed on both apps. That is my big Problem.
As variations appear to be as much as 3 degress difference. Using probe in Icy water does not seem to be the correct calibration method, when probe reading differs from internal sensor as well as each probe gives different reading comparing 9 probes.
Love to know the answers, from your Technical Support Staff. Thanks for your assistance.