ISW1598 Smart Prepaid Ultrasonic Water Meter

ISW1598 STS Smart Prepaid Ultrasonic Water Meter

ISW1598 STS Smart Prepaid Ultrasonic Water Meter is an electronic smart device that measures water consumption using sound waves and automatically controls water access based on a pre-purchased balance. It combines precise digital measurement hardware with an automated internal valve to eliminate manual billing. The meter sends sound waves across the water stream. By calculating the time difference it takes for the sound to travel upstream versus downstream, it determines the exact volume of water passing through. Residents buy water credit in advance (via an app, website, or token card). As you use water, the cost is deducted from the meter’s digital balance.

I.  How the STS Smart Prepaid Ultrasonic Water Meter Works?

i.  Purchase: The user buys water credit via a mobile app, SMS, online portal, or utility vendor.

ii. Generation: The utility’s vending system generates a unique 20-digit encryption token specific only to that user’s meter serial number.

iii.Input: The user types this 20-digit code into a keypad. This keypad can be directly on the meter or on a separate wireless wall unit inside the home called a Customer Interface Unit (CIU).

iv. Activation: The internal electronic module decrypts the code, updates the water balance, and automatically commands the valve to open.

v. Ultrasonic Measurement: The meter sends sound waves across the water stream. By calculating the time difference it takes for the sound to travel upstream versus downstream, it determines the exact volume of water passing through.

vi. Prepayment Control: You buy water credit in advance (via an app, website, or token card). As you use water, the cost is deducted from the meter’s digital balance.

vii. Automatic Shutoff: When your prepaid credit reaches zero, the meter commands an internal motorized valve to close, stopping the water supply until more credit is loaded.

• No Wear and Tear: Traditional mechanical meters have spinning wheels that get clogged or wear down over time due to sand or rust. Ultrasonic meters have zero moving parts, meaning they stay accurate for years.
• No Bill Collection Delays: Utilities or landlords receive payment upfront, eliminating unpaid debts and the need to send out manual bill collectors.
• Detects Small Leaks: It is sensitive enough to catch tiny drips that mechanical meters miss entirely.
• Filters Out Air: It can tell the difference between air pockets and water in the pipe, ensuring you never get charged for air trapped in the system.