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The **VADTel-WM-15** is a DN 15 mechanical water meter with a roller register and an optional battery-powered telemetry module for remote reading. It is designed for potable-water metering in residential and light commercial installations that need reliable local measurement and scalable AMR/AMI integration. The telemetry module is an additional functionality without metrological impact: it picks up the register through a pulse interface and transmits readings and events over a cellular network.

### Key features

- Mechanical DN 15 meter with a roller register reading directly in m³
- Add-on telemetry module (VAD-UM-01) for remote reading over GSM/GPRS
- Pulse reading interface with a fixed K-factor for telemetry pickup
- Hot- and cold-water variants, with or without telemetry
- Battery-powered telemetry electronics, independent of the metrology
- IP68 meter face and IP65 telemetry cover for outdoor and pit installation

### Product identification

| Parameter       | Value                                                            |
| --------------- | ---------------------------------------------------------------- |
| Commercial name | VAD DN 15 Water Meter with Telemetry                             |
| Model family    | VADTel-WM-15 (meter) / VAD-UM-01 (telemetry module)              |
| Meter type      | Mechanical water meter with roller register and add-on telemetry |
| Connection      | DN 15                                                            |
| Application     | Residential and light commercial AMR/AMI                         |
| Origin          | Made in EU                                                       |

### Metrology

| Parameter                 | Value                         |
| ------------------------- | ----------------------------- |
| Metering principle        | Mechanical, roller register   |
| Nominal flow (Qn)         | 1.5 m³/h                      |
| Temperature class         | T50                           |
| Pulse constant (K-factor) | 4.440 × 10⁻⁶ m³/imp           |
| Register unit             | m³ (fine indication × 0.0001) |

### Environmental and mechanical

| Parameter                   | Value                                      |
| --------------------------- | ------------------------------------------ |
| Water temperature range     | +5 to +90 °C                               |
| Maximum admissible pressure | 16 bar (MAP 16)                            |
| Ingress protection          | IP68 (meter face) / IP65 (telemetry cover) |
| Connection size             | DN 15                                      |

### Power supply

| Parameter       | Value               |
| --------------- | ------------------- |
| Battery type    | CR2450 lithium cell |
| Nominal voltage | 3 V                 |

### Telemetry and communication

| Parameter           | Value                                              |
| ------------------- | -------------------------------------------------- |
| Communication       | GSM/GPRS                                           |
| Reading source      | Pulse interface, K = 4.440 × 10⁻⁶ m³/imp           |
| Metrological impact | None — additional functionality over the metrology |

### Configurations

| Variant                         | Water | Telemetry |
| ------------------------------- | ----- | --------- |
| Cold-water meter                | Cold  | —         |
| Hot-water meter                 | Hot   | —         |
| Cold-water meter with telemetry | Cold  | GSM/GPRS  |
| Hot-water meter with telemetry  | Hot   | GSM/GPRS  |

All variants share the DN 15 connection.

### Regulatory framework

The VADTel-WM-15 belongs to the MID water-meter category and is designed in line with the following EU framework:

- **MID 2014/32/EU (MI-001)** — measuring instruments directive for water meters
- **EN ISO 4064 series** — metrological and technical requirements for water meters
- **RED 2014/53/EU** — radio equipment directive, applicable to telemetry-equipped variants
- **CE marking** — applies in line with the applicable conformity-assessment route
- **RoHS / REACH** — where supported by supplier declarations

### Manufacturer

| Parameter              | Value                                   |
| ---------------------- | --------------------------------------- |
| Manufacturer           | V.A.D. s.r.o.                           |
| Address                | Konventná 6, 81103 Bratislava, Slovakia |
| Website                | www.vadsro.eu                           |
| Support                | inbox@vadsro.eu \| +421-910-411-379     |
| Country of manufacture | Made in EU                              |