Hi Tania,
Not sure about comment “not Bluetooth” (433 MHz), transmits Radio Frequency signals, I assume you mean WiFi frequency (2.4 GHz).
I Can use several BLE monitor apps, that can monitor Bluetooth Low Energy (BLE) Tx signals that tells User the RSSI (BLE) Signal Level in dBm, as well as, distance between TX device (ie ITH-20-R-0 or IBS-TH2 plus) that both use BLE Radio signals to communicate. Then these Gateway IBS-M2S (RX) sold with ITH-20-R-0 sensors (TX) (Bluetooth 4 ) with the Gateway converts these BLE Signals to WiFi (2.4 GHz) RF Signals that can connect to WiFi Router, connected to Internet to Inkbird Portal to store Data. T&H RECORDS.
AT same time, using Mobile Phones & Tablets, are using BLUETOOTH to connect sensors to Inkbird App. To Display Data, Also allows Logging & Ability to Download these Data Records being recorded, & saved in Inkbird’s Portal’s Server Storage. Requiring User to be logged in, to be Stored & Retrieved later.
Similar IBS-M2 GATEWAY accept Sensors, via BLE, like in my situation communicate with both ITH-20-R-0 & IBS-TH2 plus sensors. Whereas Engbird app only Allows Bluetooth comms with IBS-TH2 sensors, whereas ITH-20-R-0 Sensors are rejected (possible incompatible, using different BTE Protocol).
Note: Inkbird provides which Sensors are Compatible with any Gateway, some earlier models will not interconnect. These issues could be fixed with Updated Firmware, but Support do not seem to be interested, requires effort & funding. Easier to sell New Items.
Note: There is an older IBS-M1 Gateway, replaced recently with a newer version of same IBS-M1 Gateway that probably will communicate your ITH-20-R-0 sensors.
Hi jean-francious. Maybe check with Inkbird Support, they may be able to verify, using SN to work out compatibility in your case. Or maybe another solution, may fix the issue with Firmware update. Try Inkbird app. instead of Engbird, as I explained earlier.
Cheers
Bob