---
# System prepended metadata

title: Product Specs v1
tags: [ugs]

---

---
title: 'Product Specs v1'
tags: ugs
robots: noindex, nofollow
---

UGS_PRD v1
===


Change History

| Date           | Version        | Description                  | Authur |
| -------------- | -------------- | ---------------------------- | ------ |
| 31/05/2021     |  0.1           | Initial draft                | Star   | 
|                |                |                              |        |
|                |                |                              |        |
|                |                |                              |        | 
|                |                |                              |        |

[TOC]

## Overview

:::info
UGS (Uninterruptible Gas System) is an industry measuring device module for gas cylinders that uses non-contact ++ultrasonic++ technology to detect liquid gas level and [NB-IoT](https://en.wikipedia.org/wiki/Narrowband_IoT) as its backhaul to cloud seamlessly.:satellite:
:::


![](https://i.imgur.com/7Q2fSRx.jpg)


## Technical Specs

| Item                                 | Specs                           |
| -------------------------------------|-------------------------------- |
| Communication                        | NB-IoT                          |
| Bands                                | B1,B3,B5,B8,B20,B28             |
| Antenna                              | Internal (default) / External   |
| SIM type                             | eSIM[^1]                   |
| Button                               | Device ON/OFF                   |
| Alarm Signal                         | Beeper                          |
| Power supply                         | 18650 li-ion 2400[^2]               |
| Power consumption                    | max. xx mA, standby yy mA       |
| Dimension                            | 80x50x25 mm                     |
| Weight (with a battery)              | 180g                            |
| Battery life                         | 6 years (once a day)            |
| Operating temperature                | -20°C to +65°C                  |
| Humidity                             | 5 to 95%                        |
| Waterproof                           | IP65                            |
| Sensor                               | Level                           |
| Max measuring level range            | 1.5m                            | 
| Measuring error                      | ±1%FS(Full Scale)               |
| Gas cylinder size                    | 4kg to 50kg (steel, aluminium)  |
| Gas type                             | Liquid gas (propane, butane)    |

[^1]: Nano SIM for EVT/DVT
[^2]: [Alternatives](/78IIdmGVRbCu419Mj2-DxQ)

## Features
* NB-IoT network
* Custom sensor update interval
    * one report per day mode (default)
    * deep sleep (custom) interval mode
* Ultrasonic liquid level detection
* Custom threshold level alarm
* Low battery alarm
* IP65 Water-Resistant
* CoAP over DTLS over UDP protocol [here](#Protocol-Stack)
* Device Management via LwM2M
* OTA (tbd)
---
* Cloud platform management 
* Mobile App 


{%hackmd LUFiYQhuRMiSySGLrAcdVQ %}


## Abbreviations

* NB-IOT Narrow Band Internet of Thing
* CoAP The Constrained Application Protocol 
* LwM2M Lightweight Machine to Machine