Gas Sensor

Technology and products providing safe and comfortable
environments indispensable for everyday life


Nissha FIS, Inc., a Nissha Company, offers semiconductor type of gas sensors and sensor applied equipment such as mod-ules and finished products.
We provide wide range of products to many fields such as gas alarms, hydrogen detectors for fuel cell vehi-cles, gas sensor module for refrigerant detection for safety field, air purifiers for environmental field, breath alcohol checkers or breath odor checkers for healthcare field. Also, we can realize a comfortable, safe and secure society by IoT, combining gas sensors with the wireless technology of Nissha SiMICS, Inc., a Nissha Company.
Offering wide variety of gas sensors that are not only elements but also modules, detectors and instruments for analysis.
Website for Customers


Posted "Nissha Products to Contribute to a Hydrogen Society"

Hydrogen is expected as a clean energy for the realization of a carbon-free society. We are contributing to the building of a hydrogen society through various products.

Outline of gas sensors

Nissha Group gas sensors are built into gas alarms for preventing carbon monoxide poisoning and gas explosions, and even into air purifiers and air conditioners. These are also applied to breath alcohol checkers for the prevention of drunk driving and to fields that support the safety and comfort of automobiles.
Meanwhile, we are developing applied equipment based on the sensors. For example, using the Nissha Group Sensor Gas Chromatograph—a compact, lightweight, and competitively priced device for measuring ultralow parts-per-billion level concentrations of gas—we offer products targeting the environmental field as well as the healthcare field, such as halitosis analyzers. life and short detection time.
It is expected that gas sensors will be applied to an even wider range of purposes such as fuel cell vehicles, medical and POCT (Point of Care Testing) in the future.


Humidification air cleaner

Humidification air cleaner Plasmacluster

Humidification air cleaner Plasmacluster7000 by Sharp Corporation.

In the popular humidification air cleaner "Plasmacluster" which Sharp Corporation sells, our gas sensor have been adopted. The gas sensor controls a fan to detects every indoor smell, such as cigarettes, cosmetics, alcohol, food, pets, etc.


Gas sensors

  • Semiconductor types (SB,SP series)
    *SB:Small bead type, SP:thick printed plate type
  • Catalytic combustion types
  • Electrochemical types
  • Infrared types

---Target detection gases---
  • High-selectivity CO/methane, Combustible gas
  • Carbon monoxide, Hydrogen, Carbon dioxide
  • High-selectivity methane/LPG, Fluorocarbon, Ozone

Sensor Modules

Sensor Modules

---Target detection gases---
  • Carbon dioxide, Ozone, Hydrogen, Ammonia, Combustible gas and Toxic gas

  • Air purifiers, Air-conditioners, Automobiles, Gas detectors

Finished products

  • Expiration checker (halitosis, alcohol)
  • Battery-powered gas detectors, Refrigerant detectors, Expiration analyzers

Element technology

Equipped with all design technologies necessary for gas sensing

Gas element technology

Semiconductor gas sensors, other gas sensors, and applied equipment in recent years feature ever more advanced sensitivity and accuracy, and are used in an expanding range of fields. For accurate detection of the target gas, however, it is not enough that the sensor alone incorporates excellent technologies. We develop and manufacture everything from gas sensors alone to finished products such as modules, checkers, and analyzers. By being equipped with all elemental technologies necessary for gas sensing, we offer products that meet customer needs—high sensitivity, high accuracy, easy operability, and high reliability—in a broad range of fields including safety, environment, healthcare, automobiles and measurement.

Gas sensor design technologies

Material synthesis –The key to gas sensing–

We prepare original materials to manufacture sensors tailored to the properties of the target gas. Material synthesis is the key to gas sensing and an area that best showcases the expertise of Nissha Group.

Micromachining –Development of small size, low power consumption sensors–

Sensor miniaturization presents numerous advantages, from power and cost savings to quick response times and expanded scope of application. Nissha Group uses proprietary micromachining technologies in processes such as electrode machining and the formation of gas-sensing bodies to develop and manufacture small size, low power consumption sensors including MEMS* gas sensors.
* MEMS: Micro Electro Mechanical Systems

Facility design –Manufacturing equipment designed in-house–

FIS factory

Manufacturing gas sensors, including micromachining, requires special processes and equipment. Nissha Group designs its own equipment, such as automatic applicators of gas-sensing materials, to realize inimitable small size, high performance, and high reliability.

Product design technologies

Structural design –The optimal design for each product–

Each component of the gas sensor serves a purpose, down to the last tube. By tailoring various elements such as structure, layout, and materials to the purpose of the product, we can equip the gas sensor with unique functions.

Control circuit design –Realizing high sensitivity and low noise–

Improvements in sensitivity pose a challenge: the gas sensor is that much more susceptible to noise, or gases other than the target gas present in the surrounding environment. Control circuit design is an important means of controlling this noise as well as ensuring user-friendliness of the product including the software. Nissha Group designs original control circuits to present products that play up the strengths and play down the weaknesses of various sensors.

Software development

Nissha Group develops original software tailored to each product for easy operation even without specialized knowledge. The software can be customized according to customer needs.

Combining gas sensors with the wireless technologies

Wireless Sensor Network

Wireless sensors combining gas sensors and various sensors with low-power wireless technologies enable the build of IoT solutions tailored to various needs.

Features of Nissha wireless sensor network

  1. Energy harvesting : Harnesses small amounts of energy from the environment
  2. Ultra-low power : Operating sequence optimized for low power consumption
  3. Specified low-power wireless : Wireless licensed to use the 920 MHz frequency band

System Configuration

System Configuration of combining Gas Sensor Module for Refrigerant Detection and Temperature and Humidity Sensor with wireless technologies.

Sensors lineup

In addition to gas sensors, the Nissha Group handles Indoor/Short-range Wireless Sensor (Temperature and Humidity Sensor, CO2 Sensor, etc.) and Outdoor/Long-range Wireless Sensor [LPWA] (Illuminance Sensor, Soil Moisture Sensor, etc.).
By combining these sensors with wireless technologies, it is possible to build IoT solutions that meet the needs of various sites. For more information, please visit the official website (Japanese Only) of Nissha SiMICS, Inc..


The range of sensors may be configured as IoT solutions for a variety of settings.
Nissha recommends products optimal for both indoor and outdoor environments, and designs systems as needed.










Please feel free to contact us.

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