---
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:
:::


## 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