---
title: Product Datasheet
description: Technical specifications, configuration options, EU compliance notes and field evidence for the VADTel-SENS smart pressure and temperature sensor.
weight: 1
---

import Alert from '@/components/docs/Alert.astro';

### Overview

#### Key platform fit

- Pressure and temperature monitoring in one field-mounted sensor.
- Configurable telemetry with adjustable measurement cadence, heartbeat interval and alarm thresholds.
- Rechargeable LiPo battery options for long autonomous operation.
- Suitable for gas, water, heat and general industrial utility points.

#### Typical applications

- Gas distribution and pressure-reduction stations.
- Water supply networks, pumping stations and water-treatment systems.
- Heat supply systems, boiler rooms and district-heating substations.
- Hydraulic and pneumatic systems, including selected oil and fuel applications.

![VADTel-SENS](./images/body.webp)

#### Operating logic

The sensor measures locally at a configurable interval. If the measured values remain within configured thresholds, the device returns to a low-power state and reports according to the heartbeat schedule. If a pressure or temperature threshold is exceeded, event-driven transmission starts and the dispatcher receives an alarm notification.

#### Process media and installation summary

VADTel-SENS is intended for media compatible with stainless steel AISI 316L / AISI 304, including gases, steam, water and mildly aggressive liquids. The device is mounted similarly to a pressure gauge; pressure should preferably be introduced from below, with measures taken against vibration, severe pulsation, condensation and freezing where relevant.

#### Documented pilot-operation evidence

Published pilot reports describe approximately 4,000 server sessions in 7 months on one low-pressure unit and approximately 10,000 sessions in 17 months on another, without battery replacement during the test period.

### Technical specifications

#### Measurement

| Parameter                 | Value                            |
| ------------------------- | -------------------------------- |
| Pressure type             | Gauge or absolute                |
| Pressure accuracy         | ±1.0 / ±1.5 / ±2.0 / ±2.5 %FS    |
| Permissible overload      | 1.5 × full scale                 |
| Process temperature range | −40 to +85 °C                    |
| Temperature accuracy      | ±1.0 °C standard; ±0.1 °C option |

#### Telemetry & control

| Parameter                     | Value                                                         |
| ----------------------------- | ------------------------------------------------------------- |
| Cellular communications       | GSM/GPRS or NB-IoT                                            |
| Measurement interval          | 5–600 s                                                       |
| Heartbeat / health report     | 30 min to 24 h                                                |
| Alarm-zone reporting interval | 5–60 min                                                      |
| Alarm thresholds              | Server-configurable min./max. pressure and temperature limits |
| System integration            | Secure Linux backend; IIoT / OPC UA / SCADA                   |

#### Power

| Parameter                     | Value                                                       |
| ----------------------------- | ----------------------------------------------------------- |
| Power supply                  | Built-in rechargeable LiPo battery, nominal 3.7 V           |
| Battery capacity options      | 2,000 / 4,000 / 6,000 mAh                                   |
| Guaranteed telemetry sessions | 5,000 / 7,500 / 10,000 server sessions                      |
| Autonomous operation          | Up to 5 years typical; application-dependent                |
| Battery service               | Recharge / replacement by authorized service personnel only |

#### Environmental & mechanical

| Parameter                          | Value                                                       |
| ---------------------------------- | ----------------------------------------------------------- |
| Ambient operating temperature      | −40 to +60 °C                                               |
| Storage / transport                | −50 to +60 °C; up to 95% RH at +35 °C                       |
| Ingress protection                 | IP65 (IEC 60529)                                            |
| Process connection                 | M20 × 1.5                                                   |
| Wetted media compatibility         | Stainless-steel-compatible media (AISI 316L / AISI 304)     |
| Housing / installation form        | Field-mount sensor; installed similarly to a pressure gauge |
| Dimensions                         | Approx. 125 × 210 × 90 mm                                   |
| Weight                             | Approx. 1.0–1.2 kg, depending on housing/options            |
| Recommended recalibration interval | 36 months                                                   |

#### Available pressure ranges

- Gauge: low-pressure gas-network variant and 0–40 kPa version.
- Absolute: 0–160 kPa, 0–400 kPa, 0–600 kPa, 0–1.0 MPa, 0–1.6 MPa, 0–2.5 MPa, 0–4.0 MPa.
- Custom ranges up to 60 MPa on request.

> Low-range source materials reference both 5 kPa and 7 kPa variants. Confirm the exact low-pressure range in the RFQ or order sheet.

#### Configuration options

- Accuracy class: ±1.0 / ±1.5 / ±2.0 / ±2.5 %FS.
- Battery: 2,000 / 4,000 / 6,000 mAh.
- Remote temperature probe option.
- Process cooler with remote temperature probe option.
- Hazardous-area housing version.

#### Standard delivery / accessories

- Sensor unit.
- External GSM / NB-IoT antenna.
- Product passport / datasheet.
- Operating manual and calibration method on request.

#### Engineering notes

- The datasheet uses EU / IEC terminology such as `%FS` and IEC 60529 ingress ratings.
- Ambient operating temperature and measured/process temperature are stated separately.
- Conservative ratings were selected where legacy source documents differed.
- Final product definition remains configuration-specific.

### Remote setpoint configuration interface

Dispatcher-side configuration allows remote adjustment of the measurement interval, reporting schedule and min./max. alarm thresholds for each channel. During normal operation the sensor reports according to schedule; when configured pressure or temperature limits are exceeded, the device switches to event-driven reporting until the alarm condition clears.

![VADTel-SENS remote setpoint configuration screen](./images/config-ui.png)

#### What the translated screen shows

- Pressure `P_out` and temperature `T_out`.
- Alarm threshold bars for both channels.
- Measurement, heartbeat and alarm-state intervals.
- JSON view of the active configuration.

### EU compliance and installation notes

#### Regulatory adaptation for the EU market

- A manufacturer RoHS declaration is published for V.A.D. products in accordance with Directive 2011/65/EU and Delegated Directive (EU) 2015/863.
- For a marketed cellular version, the applicable EU legislation typically includes RED 2014/53/EU, RoHS 2011/65/EU and WEEE 2012/19/EU.
- The hazardous-area version described in EU: CE 1354 II 2G Ex d IIC T6 Gb X
- Use in hazardous areas within the EU requires a version carrying valid ATEX / IECEx marking together with the corresponding declaration and certificate set.
- CE marking is product-specific and may only be applied after final conformity assessment of the placed-on-market EU variant.

> No unverified CE or ATEX claim is made on this page.

#### Installation and service precautions

- Mount similarly to a pressure gauge and apply mechanical load only to the process connection, not to the housing.
- Avoid severe vibration, shocks and pressure pulsation above approximately 10% of nominal range.
- If process temperature exceeds the permitted device limit, use an impulse line or cooler.
- Protect the housing against condensation and freezing in low-temperature service.
- Do not open the unit in a hazardous area; battery service must be carried out by authorized personnel only.

#### Configurable telemetry workflow

1. **Measure** — Pressure and temperature are measured locally every 5–600 seconds.
2. **Compare** — Measured values are checked against configured minimum and maximum thresholds.
3. **Sleep / heartbeat** — If values are normal, the unit returns to low power and reports every 30 min to 24 h.
4. **Alarm report** — If thresholds are exceeded, event-driven transmission starts every 5–60 min until the condition clears.

### Published field evidence

- An interregional-gas pilot protocol documents approximately 4,000 server sessions in 7 months on one test unit and approximately 10,000 sessions in 17 months on another test unit.
- The same pilot notes average monthly traffic of approximately 60 kB and regular reporting by schedule and on threshold events.
- A pilot letter reports 93-94% remaining battery charge after 267 communication sessions in a pilot installation and observed pressure-measurement accuracy not worse than ±20 Pa on a 0–40 kPa unit.

### Tender / order-sheet checklist

- Pressure type: gauge or absolute.
- Required pressure range and accuracy class.
- Battery capacity and expected reporting profile.
- Communication technology and antenna arrangement.
- Need for remote temperature probe or cooler.
- Whether a hazardous-area certified variant is required for the final EU installation.

<Alert type="note">
  All parameters are configuration-dependent and subject to final application review.
</Alert>