Product Description STE18‑G is STS‑certified single‑phase keypad prepaid smart electricity meter with dual‑mode GPRS & 433MHz RF communication. It adopts modular plug‑and‑play communication module design, users can realize real‑time remote data monitoring, energy consumption statistics and anomaly alert via web vending platform, handheld HHU or third‑party API. It supports STS 20‑digit token recharge, up to 8 multi‑tariff settings, cover‑open & magnetic tamper detection,
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