Skip to content
Technical Knowledge Base

Prepaid Metering and Smart Access Guides

Engineering guides, technology comparisons, and technical FAQs to help housing societies, property managers, and property owners in Pakistan make informed utility and access decisions.

Practical Implementation Guides

Utility Metering

Choosing Between STS Token and IC Card Metering for Pakistani Properties

A technical comparison of Standard Transfer Specification (STS) 20-digit token entry versus local IC smart card recharge for residential estates, apartment buildings, and housing societies in Pakistan.

Key Decision Criteria:

  • STS token meters eliminate physical card loss: residents enter a 20-digit encrypted code via keypad or CIU.
  • IC card meters work without cellular/mobile vending networks: credit is loaded directly at the management office terminal.
  • STS is optimal for housing societies with remote online recharge; IC card is ideal for private compounds and dedicated facility management.
Water Automation

Selecting an Automatic Water Tank Controller for Pakistani Properties

How to evaluate wireless water level telemetry, dual-tank automation (overhead rooftop tank and underground ground sump), and dry-run pump protection for homes and commercial buildings in Pakistan.

Key Decision Criteria:

  • Eliminates cable trenching between underground water reservoirs and rooftop storage tanks.
  • Protects pump motors against dry-running when ground suction line or municipal supply is empty.
  • Supports 220V single-phase motors and high-power pump contactors with automatic runtime cut-offs.
Smart Access

Door Compatibility & Sizing Checklist Before Buying a Smart Door Lock

Crucial pre-purchase checks for Pakistani properties: measuring door leaf thickness, verifying mortise pocket depth, wooden vs. security steel frames, and ensuring emergency mechanical key backup.

Key Decision Criteria:

  • Measure door leaf thickness and stile width accurately; Vensora technical team evaluates door dimensions to verify mortise lock body fitment.
  • Ensure structural frame clearance for electronic deadbolts and anti-tamper latch plates.
  • Verify 4 physical access modes (Fingerprint, PIN, RFID Card, Mechanical Key) for uninterrupted family and staff entry.

Technical Frequently Asked Questions

General Questions & Recharge Architecture

What does Vensora Integrated Systems supply?

Vensora Integrated Systems primarily supplies prepaid water and electricity meters together with supporting utility management software. We help landlords, property managers, housing societies, and commercial developments manage utility consumption, recharge, and billing across Pakistan. We also supply wireless water level/pump controllers and digital smart door locks.

How does Vensora utility management software help landlords and property managers?

Vensora utility management software allows property administrators to manage prepaid water and electricity meters directly from a management office computer. It generates 20-digit STS recharge tokens, encodes IC smart cards, maps meters to specific tenant units or shops, logs transaction history, and enforces automated supply cut-off on zero balance to prevent utility arrears.

How do I request a quotation?

Select your desired product from the catalogue and click 'Request Quote' or call our office directly at +92 322 5121126. Provide your project location, estimated meter count, pipe size (DN15/DN20) or electrical load, and recharge preference (STS token or IC card). A Vensora specialist will follow up with tailored technical recommendations and pricing.

Does Vensora provide installation and setup support?

Vensora provides technical system supply, configuration guidance, and engineering support across Pakistan. For utility meters, we assist with system initialization, software onboarding, and contractor coordination. Specific installation boundaries and commissioning scope are confirmed during quotation review.

How does STS token recharge work?

STS (Standard Transfer Specification) is an international prepaid metering standard (IEC 62055-41). Credit purchase and meter credit entry are two distinct steps: (1) An authorized vending station or mobile system generates an encrypted 20-digit numeric token. Purchasing a token remotely does not automatically transfer credit to the meter over the air. (2) The consumer manually enters the 20 digits into the keypad on the water meter (or the indoor Customer Interface Unit for split electricity meters). The meter decodes the token locally, adds the purchased units, and maintains service without needing active internet or cellular connectivity at the meter body.

How does IC card-based recharge work?

With IC card meters, credit is loaded onto a physical smart card at an estate management office, reception desk, or vending terminal. For electricity meters (Model DDSY6661), the card is inserted into the front slot to instantly transfer kWh balance. For water meters (Model LXSZY-15D), the card is presented to the meter's IC interface. The internal valve or power relay maintains supply while positive credit remains and closes automatically upon depletion.

Can I recharge my meter using a mobile phone?

For STS prepaid meters, credit can be purchased on a mobile phone (via banking apps, mobile wallets, or USSD). However, the purchased credit is delivered as a 20-digit encrypted numeric token, which must then be entered into the meter keypad or indoor CIU. The phone purchase generates the token; it does not automatically transfer credit wirelessly to the meter unless a centralized utility AMI infrastructure is deployed.

Prepaid Water Meters

What is the difference between STS and IC card water meters?

STS water meters (Model VCW1000) use a 12-key numeric keypad protected by a flip lid, accepting 20-digit encrypted numeric tokens purchased via mobile or retail channels. IC card water meters (Model LXSZY-15D) use a physical prepaid smart card managed by property administrators. Both meters feature volumetric measurement, Class B accuracy (ISO 4064), IP68 waterproof enclosures, and internal motorized shut-off valves.

How is credit loaded onto the IC card water meter?

Credit is transferred using an IC card-based recharge system. Because supplier documentation contains varying references (tap area, card insertion, and keypad callouts), Vensora designates the specific interaction as under hardware review. Specific presentation and handling instructions will be confirmed based on your project's verified hardware shipment.

Prepaid Electricity Meters

What is the benefit of a split-unit electricity meter with a CIU?

In a split-unit setup (Model DDSD2821), the main meter body is installed in a secure exterior cabinet or electrical riser to prevent tampering and bypass. The compact Customer Interface Unit (CIU) is installed indoors inside the home or office. Consumers can monitor remaining kWh, check usage, receive low-credit alerts, and type in 20-digit recharge tokens without leaving their premises or opening the electrical distribution board.

What is the voltage rating for the STS prepaid electricity meter?

Reference sheets document 220V on the physical meter label and 230V in the technical specification table. To maintain strict governance, Vensora presents the nominal voltage rating as under technical confirmation for the 50Hz grid, ensuring exact compliance with your local electrical distribution network.

Smart Water Control Systems

How does the wireless liquid level controller automate water pumps?

The system utilizes a remote submersible probe in the tank or reservoir connected to a high-gain wireless RF antenna and DC/solar-compatible power setup. Liquid level telemetry is transmitted wirelessly to the indoor wall-mounted controller unit, which displays the live level percentage and 5-stage LED bar. The controller triggers the pump relay automatically at preset low thresholds and cuts off when full, with built-in dry-run and timeout protections.

What is included in the liquid level controller package?

Reference documentation pictures a comprehensive wireless setup consisting of a digital controller, submersible probe, antenna, solar panel, and battery pack. Because site needs vary (e.g. mains-powered vs. solar-powered tanks, shallow vs. deep boreholes), package inclusions and pump contactor sizing are tailored per quotation.

Digital Smart Door Locks

What unlocking methods are confirmed on the smart door lock?

The supplied Digital Smart Door Lock model documents four verified physical access methods: a biometric fingerprint scanner integrated into the exterior handle, a backlit numeric PIN touch keypad, contactless RFID access cards, and a concealed mechanical key cylinder for emergency backup. It also features an exterior HD camera and an interior status screen.

What does the smart door lock indoor screen display?

The indoor panel features an integrated color screen documented to display system status, lock mode, and battery charge level. An exterior HD camera provides visual monitoring for visitor awareness. Advanced video calling or two-way intercom features are evaluated separately per hardware configuration.

How do I check if my door is compatible with the digital smart lock?

The smart door lock is engineered for residential wooden entrance doors and security steel doors. Because mortise pocket depth, stile width, and door leaf thickness vary across Pakistani properties, we recommend providing your exact door thickness, frame material, and opening direction (left or right) with your quotation request. Vensora's technical team verifies mortise compatibility before order confirmation.

Planning a Metering or Smart Access Project in Pakistan?

Our engineering team assists with pipeline sizing, electrical tenant submetering architectures, and hardware samples. Request a formal quotation tailored to your society or building.