# Zreyas Technology Pvt Ltd

Manufacturer, service provider in Kolkata, West Bengal. Last updated 2026-10-11; site last checked 2026-10-11. Gathered from the business's own website. **Not verified by the business.**

Kolkata-based IoT and embedded systems company. It designs and prototypes custom electronic hardware, firmware and software for clients, including PCB layout, PCB assembly and testing. It also sells its own products such as an air quality monitoring system, an IoT middleware, a pump controller and an oxygen concentrator.

## How to reach this business

- Best route for an agent: email — contact@zreyastechnology.com
- Other routes: phone 8240631587
- Include in your first message: Product requirement or specification; Expectations and budget; Quantity
- Typical way to start: contact only

_A way to send an enquiry through this directory is planned. Until then, use the routes above._

## At a glance

| | |
| --- | --- |
| Website | https://zreyastechnology.com |
| Legal name | Zreyas Technology Pvt Ltd |
| Languages | en |
| Office | 12ES3, Mani Casadona, Plot No. II F/04,Action Area: II-F, Rajarhat, Newtown, Kolkata:700156, India |

## What they offer

### Custom IoT and embedded development for OEMs (service)

Turnkey IoT development and consulting covering sensor hardware, firmware, middleware, cloud and mobile apps.

### Prototyping & hardware design and manufacturing (custom production)

Electronic hardware design, PCB layout, PCB assembly, testing and prototype manufacturing, with enclosure design, for client products.

**Capabilities**
- Single-layer and double-layer PCB manufacturing
- PCB assembly and testing
- LQFP, TQFP and LFCSP soldering
- Low voltage and high voltage (3 phase) testing
- Environmental chamber testing up to 250° C
- EMI/EMC compliant design
- 3D printed, molded and CNC finished enclosures

## More about this business

**Hardware capabilities**
- In-house PCB design facility with single-layer and double-layer manufacturing
- PCB design tools: Altium, Diptrace, Proteus, Easy PC
- In-house low voltage and high voltage (3 phase) test facility
- In-house environmental chamber for testing up to 250° C
- LQFP, TQFP and LFCSP soldering facility
- EMI/EMC compliant design and testing
- IP65 and IP67 compatible design
- Mechanical boxes: 3D printed, molded and CNC finished, in hybrid alloys, sheet metal and plastic
- Mechanical design software: AutoCAD, SolidWorks, Pro-E (Creo), ArtCAM

**Own products**
- Zreyas CAAQMS (Continuous Ambient Air Quality Monitoring System)
- Zreyas IoT Middleware
- Zreyas Pump Controller
- Zreyas Oxygen Concentrator
- Electronics boards: ADE7880 ADC board, 4-20 mA board, STM32 board, ESP32 board, ADXL vibration sensor board, GPS board

**Other services**
- Cloud (AWS, Azure), analytics, web, mobile and vehicle automation
- IT and IoT training and an IT book store

**Process**
- Requirement analysis, market research and patent search, then a Product Requirement Document (PRD)

## Sources

- https://zreyastechnology.com/Services/prototype-manufacturing.html (fetched 2026-10-11)
- https://zreyastechnology.com/ (fetched 2026-10-11)