STS Prepaid Gas Meter G1.6 G2.5 G4 IP65 LoRa Remote Monitoring Multi-Tariff Support

I. Core Selling Points

1. Compliance & Certification: Meets international standards including STS (IEC 62055) and OIML R137-1&2, ensuring accurate measurement and global market access.
2. Durability & Protection: Die-cast aluminum housing with IP65 dust and water resistance (suitable for open locations) and anti-magnetic interference design, adapting to complex operating environments.
3. Long Battery Life & Easy Maintenance: Battery lifespan exceeds 5 years; features an independent battery compartment for convenient replacement, with low-battery alert and auto-valve lock to protect data security.
4. Comprehensive Smart Functions: Supports multi-tariff (up to 3 tiered pricing plans), emergency overdraft, recharge limitation (prevents overstocking), and 10-year consumption data logging, meeting refined management needs.
5. Flexible Recharge & Remote Monitoring: Keypad operation with 20-digit STS-certified token recharge; optional RF communication module enables real-time consumption monitoring, data collection, and remote valve control.
6. High-Precision Metering: Equipped with international high-end metering chips and double reed switch flow sensing technology, with measurement errors controlled between ±1.5% and ±3% for traceable accuracy.
7. Wide Application Adaptability: Available in G1.6/G2.5/G4 models, suitable for natural gas metering in residential communities, commercial complexes, industrial zones, and other scenarios.

II. Product Description (Point-by-Point)

1. Basic Configuration & Specifications
   • Model: STG16-A STS keypad-type prepaid gas meter, offered in three models (G1.6/G2.5/G4) with maximum flow rates of 2.5m³/h, 4m³/h, and 6m³/h respectively.
   • Core Material: Die-cast aluminum housing, lightweight yet robust, suitable for long-term outdoor and complex environment use.
   • Reading & Measurement: Supports precise flow metering; minimum reading is 0.001m³ (mechanical index) / 0.01m³ (LCD indicator), and maximum reading is 99999.999m³ (mechanical) / 99999.99m³ (LCD).
   • Physical Design: Compact structure with low weight; equipped with a 9-digit LCD display with blue backlight for clear reading, and a user-friendly keypad for easy operation.
2. Protection & Durability
   • Ingress Protection: IP65 rating (compliant with IEC 60529) for dust and water resistance, ideal for open-air installations.
   • Anti-Tampering: Double reed switch flow sensing technology detects magnetic interference, triggering automatic valve closure; service restoration requires a tamper-clearing token.
   • Environmental Adaptability: Operates in a temperature range of -10°C ~ +55°C with humidity resistance up to 93% RH @40°C; maximum working pressure ≤1.0 bar, stable in various environmental conditions.
3. Power Supply & Maintenance
   • Battery Performance: Equipped with a long-lasting battery with a lifespan exceeding 5 years, ensuring continuous operation.
   • Maintenance Convenience: Independent battery compartment design allows easy replacement without affecting device performance.
   • Low-Battery Protection: Displays low-battery warning; automatically locks the valve (with data backup) if the battery is not replaced in time to avoid operational risks.
4. Core Functional Features
   • Credit Management: Triggers low-credit alerts when remaining gas falls below a user-defined threshold (configurable via token); supports emergency overdraft with flexible daily/monthly repayment.
   • Multi-Tariff Support: Enables TOKEN-authorized setup of up to 3 progressive tariff tiers, adapting to different pricing policies.
   • Recharge Control: Rejects recharge requests when the sum of remaining gas and new recharge exceeds the preset limit, preventing overstocking.
   • Event Logging: Records tamper alarms (magnetic/valve events) and 10 years of consumption data (monthly/hourly); supports real-time queries of balance and consumption trends via short codes.
   • High-Precision Clock: Built-in real-time clock provides accurate timestamps for all logged events and scheduled functions, ensuring data traceability.
5. Communication & Recharge Options
   • Communication Capability: Optional RF communication module supports remote monitoring, data collection, and remote on-off control of the gas meter.
   • Recharge Methods: Supports two recharge modes (by amount/unit); generates a 20-digit STS-certified token receipt after recharge. Compatible with multiple recharge channels: on-site recharge at sales points, mobile top-up via third-party platforms (e.g., M-PESA, Alipay, MTN, Airtel) through integrated APIs, and door-to-door recharge via mobile vending units.
6. Application Scenarios
   • Widely used in natural gas supply infrastructure, suitable for residential communities, commercial spaces (shopping malls, hotels, etc.), and industrial production sites.
   • Serves as a key terminal for intelligent natural gas distribution and consumption optimization, meeting the metering needs of diverse users.
7. Compliance & Compatibility
   • Standard Compliance: Complies with OIML R137-1&2 (Diaphragm) and IEC 62055 (STS) standards, ensuring product reliability and compliance with global regulatory requirements.
   • System Compatibility: Integrates with StronPay vending system, which supports data management, report generation, and account permission control; compatible with APIs for function expansion and personalized business needs.