6 V | 4 x AAA | fingerprint/13,56 MHz MF/PIN | IP65 | BLE 2.4 GHz
6V | 4 x AA | 13,56 MHz | IP55 | Wifi 2.4 GHz | TUYA
passive RFID | chip type: MIFARE S50 (13.56MHz) | rewritable | raindrop shaped design
4,5V | 3 x AA | 13,56 MHz EM | IP41 | closed system | free mode
4,5V | 3 x AA | 125 kHz EM | IP41 | fix/free mode
4,5V | 3 x AA | 125 kHz EM | IP41 | fix/free mode