The SISWDTRH IoT Data Logger is a versatile monitoring solution with 46+2 inbuilt sensor channels, supporting connectivity through GSM/GPRS and WiFi. Equipped with two SIM card slots, it features RS-485 MODBUS RTU input and temperature/humidity sensors with a range of 0°C to 60°C and less than 95% non-condensing humidity. The device offers LED indicators, alarm notifications via SMS and email through AmbeIIoT Cloud, fail-safe memory, a buzzer, and optional GPS functionality. With a data interval of 1-60 minutes, it can log up to 15,000 data records, communicating through the MQTT (JSON) protocol. Configuration is facilitated through AEPL IIOT SOFTWARE and a web page for WiFi settings. The data logger operates in a supply voltage range of 9V to 24V/3A DC, with environmental tolerance from -10°C to 50°C for operation and -20°C to 60°C for storage. Housed in ABS plastic, it has compact dimensions of 150mm (W) x 176mm (H) x 55mm (D), weighing approximately 270 grams, and supports wall mounting