AMI Smart Prepaid Split Gas Meter with NB-IoT Two-Way Communication and Keypad

一,English Product Description

二,Key Selling Points & Features

1. Innovative Split Design & User-Friendly Structure

• Split configuration (metering main unit + independent CIU) enables flexible installation and convenient operation.
• Compact and lightweight CIU (0.1KG) with an independent battery compartment, facilitating easy battery replacement.
• Durable construction: The main unit adopts aluminum die-casting, while the CIU uses ABS material, both featuring flame-retardant properties.

2. Reliable Protection & Long-Term Durability

• High protection rating: IP67 (dust/water splash resistance) for overall use, IP65 compliant for open-location installation (IEC 62055).
• Extended battery life: 6-year service life (≥5 years verified), with low-battery alert and automatic valve locking (with data backup) if the battery is not replaced promptly.
• Wide environmental adaptability: Operates within -10°C~+55°C (93% RH @40°C) and withstands a maximum working pressure of ≤1.0 bar.

3. Precise Metering & Compliance with International Standards

• High-accuracy measurement: Equipped with international high-end metering chips, with an error range of ±3% (Qmin ≤Q < 0.1Qmax) and ±1.5% (0.1Qmax ≤Q ≤Qmax); supports minimum reading of 0.001m³ (index) / 0.01m³ (LCD).
• Strict standard compliance: Meets OIML R137-1&2 (diaphragm gas meter) and IEC 62055 (STS prepaid) standards, with STS-certified numeric tokens ensuring data security and traceability.
• Anti-tampering technology: Double Reed Switch flow sensing detects magnetic interference, triggering automatic valve closure; service restoration requires a dedicated tamper-clearing token.

4. Rich & Humanized Functionalities

• Flexible pricing: Supports configurable tiered pricing (up to 3 tariff steps) authorized by tokens, adapting to diverse billing needs.
• User-centric features: Credit alarm (customizable threshold via token), emergency overdraft (with daily/monthly repayment flexibility), and recharge limitation to prevent gas overstocking.
• Comprehensive data logging: Records 10 years of consumption data (monthly/hourly) and logs tamper alarms, valve events, etc.; real-time balance/trend queries via short codes.
• High-precision real-time clock: Ensures accurate timestamps for all events and scheduled functions.