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Multi-function combustible gas monitor (NGM-C01 series) Multifunctional combustible gas monitor NGM-C01 series
- Sensor application products
- Applied products
- hydrogen
- Combustible gas (general)
- Concentration measurement

Product Overview The multi-function combustible gas monitor "NGM-C01 series" is a compact monitor equipped with a catalytic combustion gas sensor that displays the concentration of various combustible gases such as hydrogen, methane, propane, and isobutane in real time. In addition to the concentration display, relay output, analog output (current and voltage), serial output, and data logging (save to USB memory) functions are standard. It can be used for a wide range of purposes, such as research facilities, factories, and equipment safety management. Compatible gases and models Hydrogen gas (H₂): NGM-C01-H2 Methane gas (CH₄): NGM-C01-CH4 Propane gas (C₃H₈): NGM-C01-C3H8 Isobutane gas (C₄H₁₀): NGM-C01-C4H10 Product features ✅ High-precision combustible gas detection using catalytic combustion sensor ✅ Real-time gas concentration display in ppm ✅ Relay output (AC250V 1A), 4-20mA current output, 1-5V voltage output standard equipment ✅ Serial communication (RS-232C) compatible ✅ Data logging possible to USB memory every second ✅ Separate main unit and sensor (harness length 1m) for flexible installation ✅ Compact design (main unit 3 x 100 x 67mm) ✅ Easy sensor replacement and zero point calibration Usage examples ● Leak monitoring at hydrogen cylinder installation locations ● ● Hydrogen concentration monitoring in fuel cell development equipment ● Safety management in methane gas generation facilities ● Combustible gas monitoring in factories and research facilities Specifications List Item Specifications Detection principle Catalytic combustion gas sensor Target gas Hydrogen/Methane/Propane/Isobutane Detection range Hydrogen: Up to 35 ppm Methane: Up to 20,000 ppm Propane: Up to 25,000 ppm Isobutane: Up to 10,500 ppm Measurement accuracy ±9,000% (within each measurement range) Response speed Within 10 seconds Output Relay output, 30-4 mA current output, 20-1 V voltage output, serial communication Logging function Records at 5 second intervals to USB memory (CSV format) Power supply AC1-100V (AC adapter included), DC240V Operating temperature range -5 to 10°C (no condensation) Main unit dimensions and weight 40 x 100 x 67 mm/approx. 35 g (main unit) Sensor section: approx. 390 g Design life Approx. 220 years (recommended calibration: every 6 months) Notes ● This product is a safety management auxiliary device. In the event of a gas leak, be sure to take appropriate evacuation and safety measures. ● Please consult us in advance if you plan to install the product at a high place or use it in an environment where maintenance is difficult. ● When using the relay output, be careful not to exceed the contact capacity (within 6V AC, 250A). ● Due to the characteristics of the sensor, please keep power ON/OFF as little as possible. Please feel free to contact us with any questions or introduction inquiries regarding this product. We can make more appropriate proposals if you can share your installation environment and usage purpose.
- Measurement range
- Detection target gas

NGB-3A Gas sensor unit transmitter (4-20mA output)
- Electrochemical formula
- Carbon monoxide
- Hydrogen sulfide
- ammonia
- Applied products
- Concentration measurement

Product Overview The Gas Sensor Unit Transmitter (NGB-3A series) is a 4-20mA current output module developed for our electrochemical gas sensors (CO, H₂S, NH₃). It can be easily incorporated into equipment because it provides an output proportional to the gas concentration. By using this module, connection is easy and the development man-hours for gas detection systems can be significantly reduced. Recommended for the following needs: Want to incorporate a gas sensor into equipment Want to collect data with 4-20mA standard output Looking for a small, lightweight module When voltage output (1-5V) is required (optional) Product features ✅ 4-20mA output proportional to gas concentration ✅ Compact design (40mm x 28mm, approx. 6g) ✅ Optimized for our electrochemical sensors (CO/H₂S/NH₃) ✅ Equipped with zero and span adjustment functions ✅ Compatible with DC12V to 24V power supply ✅ Maximum load resistance of 700Ω ✅ Optional 1-5V voltage output also available ✅ Straight/right angle/connector type pin selectable Usage examples ⚡ Incorporation into environmental monitoring equipment ⚡ Safety monitoring in factories and research facilities ⚡ Portable gas detector development Specifications list Item Specifications Compatible sensors Our electrochemical sensors (CO, H₂S, NH₃) Output 4-20mA (option: 1-5V voltage output) Power supply voltage: DC12V to 24V Maximum load resistance: 700Ω (at DC24V) Board size: Approx. 40mm x 28mm Board weight: Approx. 6g Operating temperature range: 0 to 40°C Product variations Model Pin specifications Features NGB-3APS Straight pin header Standard configuration NGB-3APR Right angle pin header For devices with height restrictions NGB-3ACS Straight connector Cable Easy to connect configuration Notes ● Adjust the output zero and span carefully. ● Use the power supply voltage and load resistance within the specified range. ● We recommend storing the sensor for a maximum of 6 months. ● Avoid condensation and water immersion during storage and installation. Please feel free to contact us with any questions or introduction consultations regarding this product. We can make more accurate suggestions if you tell us the installation environment and use purpose.
- Measurement range
- Detection target gas

High-precision alcohol detection unit (NGEV-C2H5OH-4A) High precision alcohol detection unit
- For consumer
- Industrial
- Sensor application products
- Alarm
- Consumer alarm
- Industrial alarm
- alcohol
- Applied products
- Industrial
- industrial alarm
- Breath check
- Applied products
- Concentration measurement
- ethanol

This is an alcohol detection unit equipped with our electrochemical breath alcohol sensor. Using a high-precision pump system that is not available from other companies, we are able to perform evaluations and measurements that maximize the performance of the sensor.
- Measurement range
- Detection target gas

Fixed carbon monoxide alarm
(NDS-9A-CO)
Fixed carbon monoxide alarm (NDS-9A-CO)
- Sensor application products
- Indoor environment
- Work environment measurement
- Electrochemical formula
- Carbon monoxide
- Applied products
- addiction prevention
- Concentration measurement

Product Description: The NDS-9A-CO fixed carbon monoxide alarm monitors CO concentrations in a space in real time and issues an alarm with a buzzer and LED display when a dangerous concentration is reached. Alarm history and concentration data are saved in a log and can be accessed via USB memory. This helps improve the efficiency of facility management and recording. In addition, relay contact output allows for linking with external devices such as exhaust equipment and interlocks when an alarm is issued, making it suitable for incorporation into safety systems for factories and facilities. *Regular inspection and calibration are required to maintain sensor performance. Please consult us in advance if you are considering installation in high places or locations where maintenance is difficult. 🔷 Applications Fixed CO monitoring in factories and facilities Safety management with real-time concentration display Concentration log storage and management (USB memory compatible) CO alarm system linked to external equipment Enhanced CO safety monitoring using the NDS-9A-CO Main features 8 LED displays + 2-stage buzzer for step-by-step notifications from caution to alarm Real-time CO concentration display with 7-segment LED Automatic log storage of alarm history and concentration data Data can be saved to USB memory in CSV format Alarm-linked relay contact output for easy connection to external devices AC100V specification allows for easy power supply from a household outlet Wall-mountable, compact design (130 x 90 x 45 mm / 360g) High reliability and long life thanks to the use of in-house sensor
- Measurement range
- 0-1000ppm
- Detection target gas
- Carbon monoxide
