Compact and convenient handheld meter reader, infrared upgraded version, a low-cost NB-IoT connected device for communication networks.

Suitable for the Airwink-NB series, this device is designed for mobile handheld meter reading within a range of 2000 meters. It allows parameters to be set on the terminal’s wireless module without disassembly. The unit features a built‑in enhanced HAC08 wireless module and a Bluetooth communication module. Via Bluetooth connection to the user’s mobile phone, the phone APP enables data exchange with the server. To save power, the handheld automatically shuts down if there is no downlink data for 10 minutes, or when the battery is low. Local maintenance functions include reading parameters, sending setting commands, upgrading firmware, and detecting on‑site signals. The built‑in rechargeable lithium battery provides over 8 hours of continuous use after a full charge, and a clear, concise status indicator is provided.