Ladder billing (RF card) prepaid water meter

RF card specifications and technical parameters

Data transmission encryption

The RF card of the prepaid water meter for tiered billing (RF card) adopts a 48 bit key and data synchronous transmission mode, and data transmission is only carried out after the key verification is successful, with high data encryption;

Transmission frequency ladder billing (RF card) prepaid water meter RF card data transmission between RF cards, radio wave carrier frequency 13.56MHz

RF power consumption 30mA, 0.1w

Communication distance 1-10cm

Performance characteristics

The prepaid water meter with tiered billing (RF card) has a complete tiered billing function, with a maximum of 4 tiers set in the meter and corresponding to 4 tiered water prices. Monthly billing is based on the tiered water price corresponding to the tiered usage;

The entire meter adopts a fully sealed design with no exposed interfaces. The unique fully waterproof compartment design can effectively prevent external factors such as moisture, dust, oil fume, and human attacks from affecting electronic circuits. The waterproof level reaches IP67; The meter supports two modes of billing: tiered billing and water volume billing. Tiered billing is calculated by deducting the amount, and can implement two sets of billing schemes: annual tiered billing and monthly tiered billing. Water volume billing can be calculated by deducting the amount of water; Unique infrared identification radio frequency card detection technology, with a detection range of 0-15mm, simple operation, and high reliability;

Ladder billing (RF card) prepaid water meters can be managed with the RF card ladder billing meter using a single card, with a maximum of one card carrying one meter and three meters;

Ladder billing (RF card) prepaid water meter adopts a split type battery compartment design, using plug-in high-energy lithium batteries for more convenient replacement, and has a power-off valve function;