Changde brand contactless IC card water meters use advanced wireless technology for automated billing and water management. The system writes payment information to IC cards, which users then scan to activate water supply. When water credits are depleted, the valve automatically closes until additional payment is made.

• All-copper base construction for stable metering performance, rust-free safety, and clear reading
• IP68 waterproof rating with structural seal design for reliable operation in wet environments
• Contactless IC card technology with wireless data transmission for secure operation
• Step water price function supporting monthly and annual pricing structures
• Automatic valve maintenance with timed switching to prevent scaling
• Abnormal valve detection for battery power, low voltage, and sensor faults
• User-replaceable battery system with card reactivation
• Data retrieval capability through user cards for water usage information
• Real-time charging network support with multiple payment locations
• Client online upgrade functionality for remote system updates
• Blacklist query system for payment management and auditing
• Property fee collection based on area or time parameters
• Customizable invoice formats and permission settings