Battery Operated Methane Gas Sensor Amphenol NGM-1 with Visual Audible Alarm and RS232 Communication

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Product Description

Product Overview

The Natural Gas Module is a battery-operated detection device designed for the detection of natural gas (methane) in concentrations below 100% LEL (4.4% CH4 in air). It is not suitable for measuring propane and butane. The module features a MEMS pellistor sensor for low-power operation on standard AA batteries, providing visual (LED) and audible (buzzer) alarms. It also offers data transmission via serial RS232 for monitoring and calibration. Estimated maintenance-free operation is 6 months on 2xAA (2600mAh) batteries.

Product Attributes

  • Detectable Gases: Methane
  • Sensor Type: MP-7227 MEMS pellistor sensor
  • Power Source: Battery operated (2xAA) or 5V DC via USB
  • Communication: RS232 (serial), USB (RS232, CDC Class)
  • Alarms: Visual (LED), Audible (buzzer)
  • Features: Test button
  • Special Conditions: Not suitable for high concentrations of silicon, sulfide, and chlorine compounds.

Technical Specifications

Parameter Specification
Detectable Gases Methane
Maximum Concentration 5% v/v
Sensor Sensitivity >10 mV/% CH4
Sensor Response Time <30 s
Zero Drift <0.1%v/v /month
Sensitivity Drift <0.1%v/v /month
Power Supply 5V DC (USB port)
3V DC (battery)
Suggested Batteries 2x1.5V AA in series (min. 2600mAh)
Operating Current (Average) <0.6mA (battery operated)
Transmission USB (RS232, CDC Class)
Weight 11 g
Dimensions [w x l x h] 30 x 65 x 9 mm
RS232 Baud Rate 115200bps
RS232 Parity 8N1
Communication Frame Structure ADC Code: aaaa, C: b.bb%, Uo: cccmV, T: ddC, S:s\n\r
Status (S) 0: < I alarm level (normal operation)
1: > I alarm level
2: > II alarm level
Typical Power Consumption <0.6mA average, 50mA peak (at 3V)
Module Operation Intervals 1 second measurement, 20 second intervals
Data Transmission Interval Approx. 21 seconds
Warranted Performance Period (without calibration) 3 months

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changsha Purple Horn E-Commerce Co., Ltd.
Location 2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
Contact Person Coral

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