The Unit NB-IoT2 is a wireless communication module designed for global Cat-NB frequency bands. It has an integrated SIM7028 communication module, utilises serial communication (controlled via AT commands) and incorporates an SMA external antenna interface to significantly improve device communication quality and signal stability. The SIM7028 module supports multi-band NB-IoT network connections, providing broad applicability worldwide. Specifically designed for low-latency and low-throughput use cases, the SIM7028 module is very proficient in power management, making it ideal for long-term use. It is ideal for IoT scenarios such as smart metering, remote control, asset tracking, remote monitoring and telemedicine. Features * Global version / Multi-band support * Strong signal reception capability * AT command control * SIM card type: Nano * External antenna: SMA interface * Serial communication: UART 115200bps * Cat-NB frequency bands: B1/B2/B3/B4/B5/B8/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B66/B70/B85 * Data transmission (kbps): 127 (DL) / 159 (UL) * Network protocols: TCP/UDP/HTTP/TLS*/DTLS*/DNS/NTP/PING/LWM2M/COAP*/MQTT/MQTTS/SSL * Certification: * SRRC /NAL/CCC* * CE-RED /GCF * Deutsche Telekom*/Vodafone*/Telefonica* * ROHS /REACH * China Telecom * * China Mobile * * China Unicom * Specifications Communication Module: SIM7028G Supports Cat-NB Bands B1/B2/B3/B4/B5/B8/ B12/B13/B14/B17/B18/B19/ B20/B25/B26/B28/ B66/B70/B85 Network Protocols TCP/UDP/HTTP/ TLS*/DTLS*/DNS/NTP/ PING/LWM2M/COAP*/ MQTT/MQTTS/SSL Certifications Deutsche supporting/Vodafone/Telefonica/China telecom, China mobile/Unicom Communication Method UART 115200bps Power Dissipation Standby current: DC5V/3.1mA Standing current: DC5V/36mA Product Size 71.5 x 24 x 8mm Package Size 136 x 92 x 13mm Product Weight 12.4g Package Weight 25.5g Resources * Product Wiki Certifications Wireless and Communication Equipment Certifications * SRRC, NAL, CE-RED, GCF, CCC Safety and Environmental Certifications * CCC, RoHS, REACH Carrier Certifications * Deutsche Telekom, Vodafone, Telefonica, China Telecom, China Mobile, China Unicom Package Contents * 1x Unit NB-IoT2 * 1x SMA Antenna * 1x HEX KEY * 1x Grove Cable https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2024-07-19 https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2024-09-18 https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2024-11-29 https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2024-11-30 https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2025-04-29 https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2025-11-28 https://elecena.pl/product/26357355/nb-iot-2-unit-global-version-sim7028-with-antenna 2025-11-29