一,Product Description(产品描述)

二,Selling Points & Features(卖点特征)

1. Structural & Design Advantages

• Superior waterproof performance: IP68 rating, enabled by epoxy-sealed circuit board and inter-case sealing ring, suitable for harsh environments.
• Durable construction: Reinforced flame-retardant ABS thick-walled housing paired with a precision brass main body; corrosion-resistant and leak-free brass threaded connection joints.
• User-friendly design: Detachable independent battery compartment for easy replacement; transparent meter cover for convenient reading; supports horizontal installation.
• Versatile compatibility: Fits standard DN15/DN20/DN25 pipes with corresponding dimensions (DN15: 165mm×94.5mm×113.8mm; DN20: 195mm×94.5mm×113.8mm; DN25: 225mm×94.5mm×113.8mm).

2. Core Functional Features

• Tamper Detection: Automatically shuts off the valve upon detecting magnetic interference; service can only be resumed by entering a dedicated tamper-clearing Token.
• Comprehensive Event Log: Records tamper alarms (magnetic/valve events), 10-year consumption data (monthly/hourly), and supports real-time balance/trend queries via short codes.
• Credit Alarming: Triggers an alert when remaining water credit drops below a user-defined threshold (configurable via specific Token code).
• Emergency Overdraft: Allows emergency water usage when the balance is exhausted, with flexible daily or monthly repayment of the overdrawn amount.
• Multi Tariff Support: Enables TOKEN-authorized setup of up to 3 configurable progressive rate tiers.
• Real-time Clock: High-precision clock ensures accurate timestamps for all logged events and scheduled functions.
• Recharge Limitation: Rejects excessive recharge requests when the sum of remaining water and new recharge exceeds the preset limit, preventing overstocking.
• Low Battery Alert: Displays a warning for battery replacement; auto-locks the valve (with data backup) if the issue remains unresolved.

3. Communication & Interface Advantages

• Reliable wireless communication: 433MHz LoRa-RF communication protocol; communication distance of 350m with CIU and 900m with DCU.
• Intuitive display: LCD screen with digital and pointer readings for clear data visualization.

4. Technical Superiorities

• High measurement accuracy: Class 2.0 accuracy rating; permissible error: ±5% for Q1≤Q≤Q2, ±2% for Q2≤Q<Q4.
• Stable performance: Wide working pressure range (0.2Bar~16Bar/0.02MPa~1.6MPa); maximum pressure loss <0.6Bar/0.06MPa.
• Low power consumption: Working current ≤1.1mA, sleeping current ≤12uA; 3.6V 4000mAh ER18505 lithium battery with 4+ years lifespan.