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WxS 8702E-029

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Product Description

WxS 8702E-029 



The WxS 8700 is a wireless gas sensing platform based on LoRa technology operating at license free spectrum (ISM), enabling both public and private IoT network deployments by service providers, municipality governments, enterprises. It’s deployed in star topology with very high density, particularly suited for industrial and enterprise IoT applications such as

1)      Industrial campus safety

2)      Smart and Safety

3)      Environmental Monitoring

4)      Subway security and safety

5)      Hospitality safety

6)      Residential complex, shopping center, CBD safety

 Polysense iView is a cloud IoT network management and sensing data analytic platform, supporting Polysense sensor end nodes, such as WxS 8800 and WxS 8700, and 3rd party sensor nodes and definition of new sensor data types. It provides flexible sensor data format conversion, data import and export; charting, data analytic, integrated map, zone and priority based alert management, SMS text and email notification, and open API for 3rd party integration.

Product Highlights

ü   HCL+2MPI

ü  HCL sensor:Detection range: 010ppm50ppm100ppm500ppm1000ppm5000ppm10000ppm(according to sensor)Resolution: 0.01, 0.1, 1, 2, 5 (depending on the sensor and technical principle)

ü  Aluminum alloy gas probe, can be used in harsh industrial environment, rainproof, corrosion-proof; mesh working surface, more sensitive detection

ü  Probe thread structure, gas sensor can be replaced

ü  2 MPI interfaces: each MPI can operate as 0-10v analog voltage input, 4-20mA current input, open/close, pulse counting

ü  Cross-threshold report, plus periodic report every 2 hours (the threshold and the periodic report cycle are both user-configurable)

ü  OTA (Over The Air) firmware upgrade, including to upgrade loader and application images

ü  Optional DC 5V power source or 5000mAh rechargeable battery pack

ü  Integrated internal antenna, or optional external SMA/IPEX antenna

ü  Up to 5km reach in NLoS (Non-Line-of-Sight) and up to 18km LoS (Line-of-Sight) environments

ü  IP67 enclosure rating


Application Architecture

Sensor Specification



HCL sensor

Detection range: 010ppm50ppm100ppm500ppm1000ppm5000ppm10000ppm(according to sensor)

Resolution: 0.01, 0.1, 1, 2, 5 (depending on the sensor and technical principle)


VO voltage output range:2-0V

Response time:30s(T90)

Output:UART/Analog voltage

Use environment:Tempture:-20~50℃;


Work pressure:86~106Kpa

Work voltage:5V±1%

Power consumption:≤50mA

Zero drift:≤±1%(F.S/year)

Baud rate:9600
2MPI interfacesEach MPI can operate as 0-10v analog voltage input, 4-20mA current input, open/close, pulse counting 
Data ReportCross-threshold report, plus periodic report every 2 hours (the threshold and the periodic report cycle are both user-configurable)

Intensive data sampling and averaging

Support intensive data sampling and averaging to improve data accuracy

LoRaWAN 1.0.2


FCC(America):  2AO7W-WXS8000,

IC(Canada):  23701-WXS8000

CE(European Union)B1810246

ROHS(European Union): R2BJ180927F0664E



Wireless Specification

Mechanical Specification



Enclosure dimension

60mm x 100mm x 30mm

Enclosure IP rating

IP65 or IP67


1 or 2 AA Battery; DC 5v optional

Operating Temperature

-40C to +85C

High airflow protective vent

8,000ml/min (dp = 70mbar)

Total Weight

120 g

The harm of HCL

Hydrogen chloride has pungent odour, have acidity, have to the skin and mucous membrane prick irritability and caustic, bring about the person's respiratory tract inflammation and next respiratory tract oedema.

The Sample Applications

Gas, dust, and particulate matters are today present everywhere in our daily lives – in our breathing atmosphere, in our homes, in our working environment, in our vehicles; there is no escape of such seemingly invisible stuff. 

Some of them are unharmful, even necessary, such as O2. However, many are dangerous – flammable to cause fire, explosive to cause major accidents, poisonous to cause cancers, major elements of environmental pollutions, or bad living environment with bad odor. They can be generated in many industrial processes, from vehicles, or just gas leaks.

Therefore, it is becoming increasingly critical to be able to detect and monitor the presence and density of such type of gases, dust and particulate matters, for the safety of the society and the health of human beings, making sure the density level does not rise or cross the dangerous threshold level or report timely to avoid major accidents by advanced warnings.




Industrial campus safety

Many industrial operations, as part of the chemical process, generate  certain types of gases which may be harmful to workers, pollute the air, or  even causing fire or explosion under certain conditions (temperature and  pressure). WxS 8700 can be installed to detect and monitor virtually all dangerous  gases while assessing the environmental condition (temperature and pressure)

Residential Complex, hospitality hotels, shopping center, CBD Safety

Keeping the shopping center, CBD and complex safe and pleasant is one of  the key factors to attract customers.   WxS 8800 can be installed at strategic locations, such as public  square, hallway, restroom to detect and monitor fire and smoke (Temperature  and CO), bad odor (NH3, O3), and dangerous gases (such as CH4).

Subway security and safety

Crowded spaces such as subway are always potentially dangerous for  accidental gas leaks, fire, or terrorism attacks. WxS 8700 can be installed  at strategic locations to monitor the presence and arise of such dangerous  gas elements in combination with temperature monitoring

Environment Monitoring

Air quality (AQI) is now a major measurement of quality of life in any  city. A holistic view of the air quality consists of a number of  measurements, including CO, CO2, O3, NO2, and PM 1/2.5/10, street noise  level. WxS 8700 enables the sampling, collection, edge processing,  transmission of all these critical parameters

Smart Home

You often go back home multiple times to double check that the  appliances in kitchen is turned off when you leave home to work or go on a  vacation. You are concerned about gas leaks and fire. WxS 8700 can monitor  temperature, CO, CH4, nature gas – while you are away and alert you if  anything abnormal is detected