Polysense Introduces WxS 8700E Gas Sensor Node

Polysense Technologies Inc., has introduced WxS 8700E, its flagship LoRaWAN sensor end node product family, focusing on the market for smart environment and dangerous gas monitoring.

Many, when exposed long term over certain threshold, will cause illness or low productivity; some are simply dangerous – flammable causing fire, explosive causing fatal accidents or poisonous causing cancers. Major elements of environmental pollutions or living environment with bad odor are 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 society and the health of human beings, thereby assuring the density level does not rise or cross the dangerous threshold levels or report timely to avoid major accidents by advanced warnings.

Supporting pre-calibrated monitoring solutions for 15 types of gases, the WxS 8700E enables a wide range of gas monitoring IoT applications, including but not limited to:

  • Smart building – offices often lack adequate air ventilation or even malfunction HVAC system, leading to bad indoor air quality and low work place productivity, even sickness
  • 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 cause fire or explosion under certain conditions (temperature and pressure)
  • Crowded spaces – such as subways, shopping centers, CBDs, are potentially dangerous for accidental gas leaks, fire, or terrorism attacks
  • Air quality (AQI) – 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, O3, NO2, and PM 1/2.5/10

Advanced Features of the WxS 8700E: 

1)    15 most common gas sensors:

  • O2, O3, NO2, SO2
  • CO, NH3, H2S, PH3
  • CL2, H2, HCL, HF
  • CO2, VOC, PM2.5/10um

A customer can choose any 3 gas sensors from the above lists on a single WxS 8700E node. For example, O2, O3, NH3 for indoor office air quality; NH3, SO2, H2S for waste treatment facility; CL2, H2, HCL for industrial environment.

2)    4 MPI interface for external connectivity:

  • Each MPI – analog, digital, 4-20mA or pulse counting (MPI)
  • Enabling to connect up to 4 additional voltage/current/digital external sensors

3)    Integrated temperature, humidity and pressure sensors
4)    Pre-calibrated gas sensor for high accuracy and reliability
5)    Connectorized and pluggable gas sensor module – allowing easy field replacement or upgrade
6)    Selectable RS232/RS485 interface for external sensor connectivity
7)    Analog and PWM digital output for actuator control
8)    3v/5v/9v/15v power output to external devices
9)    IP 67+ enclosure rating
10)    Integrated internal antenna
11)    1 or 2 ‘AA’ Li-Ion Battery; 5 – 10 years of battery operational life
12)    Optional DC 5V power source
13)    Optional external SMA/IPEX antenna
14)    LoRaWAN 1.1 compliant
15)    Up to 5km reach in NLOS and up to 18km LOS environments
16)    Edge computing (iEdge OS) and cloud sensor data processing and analytic (iView)

Further, a node configuration with more than 3 simultaneous sensors (such as 6) is also possible. Please contact Polysense if you have such requirement.

Combined with WxS 8800 LoRa universal sensor product family, Polysense WxS 8800 and WxS 8700E now offers the industry’s broadest and most flexible LoRa sensor end node product portfolio, supporting over 30 types of sensing capabilities.


Polysense’s WxS 8700E universal sensor node series is in production and immediately available for ordering.

Contact Polysense for ordering and pricing: info@polysense.net

About Polysense

Located in Santa Clara, CA, with offices in Beijing, Luo Yang and Shanghai, China, Polysense develops products and solutions for Industrial IoT and smart buildings, including, Wi-Fi/BLE, LPWAN LoRaWAN and NB-IoT/eMTC based wireless IoT sensors and cloud based data management and analytics platform (iView).

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