SJH-5BUL Industrial Grade Ultra Low Power Methane Sensor
Gas Sensor Modules

SJH-5BUL

Industrial Grade Ultra Low Power Methane Sensor

Model
SJH-5BUL
Category
Gas Detectors & Alarms › Gas Sensor Modules

Parameters: CH4

IndustriesIndustrial Process
Measurement PrincipleNDIR
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Overview

SJH-5BUL is an ultra-low-power dual-beam NDIR methane sensor (<1 mA average) in a standard 4-series package, measuring up to 100% LEL with T90 <15 s and a 10-year life, ideal for battery and solar-powered detectors in oil and gas, LNG, utility vaults and sewers.

Key Features

  • Dual-beam NDIR technology
  • Average working current less than 1mA
  • Superior fast T90 time < 15s
  • Linearization and factory calibration for accurate digital output
  • Matrix calibration to ensure high accuracy over full-temperature
  • Embedded temperature and humidity compensation
  • Long lifespan of 10 years

Measured Parameters

ParameterMeasuring Range
CH40~100 %LEL (0~5 %Vol)

Specifications

PrincipleNDIR
Measurement GasCH4
ModelSJH-5BUL
Measurement Range0-100%LEL (0~5%Vol)
Accuracy0~2.50%vol (0~50% LEL): ±0.15%vol (±3%LEL) / 2.50%vol~5.00%vol (50%~100% LEL): ±0.25%vol (±5% LEL)
Resolution0.01%Vol
Response TimeT90<15s
OutputUART_TTL (3V)
Working Condition-40 ~ 70℃, 0~98%RH (non-condensing)
Storage Condition-40 ~ 70℃, 0~98%RH (non-condensing)
Power Supply3.3~5.5V DC
Working Current0.8mA (@25℃, 3.3V DC)
DimensionDia20mm*H16.6mm
Pin Definition4pin or 5pin version both available

Applications

  • Oil and gas
  • LNG transportation
  • Gas leak detection
  • Underground utility vaults and sewers
  • Battery and solar-powered wireless detectors

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