Articles

Portable generators can produce deadly carbon monoxide (CO). Learn how CO sensors detect risk, what ANSI/PGMA G300 requires, and how electrochemical CO sensors enable auto shutoff and alarms.

Use this LEL gas chart to compare common gases and vapors (methane, propane, hydrogen, solvents). Learn LEL vs UEL, how %LEL works, OSHA’s 10% LEL rule for confined spaces, mixing rules, and detector best practices.

The ME4-Cl2 potentiostatic electrochemical chlorine sensor is designed for industrial-grade Cl₂ detection, helping teams identify early leaks, reduce false alarms, and maintain long-term measurement stability.

Understand LEL and UEL (explosive limits) with clear examples, %LEL conversion, common gas tables, factors that change limits, alarm setpoints, and detector selection. Practical guide for safety teams and OEM product designers.

Learn what combustible gas is, how LEL/UEL work, and how to choose and install gas detectors for kitchens, boiler rooms, factories, and LNG/LPG sites. Includes placement tips, alarm setpoints, and maintenance best practices.

A laser PM sensor measures airborne particles via light scattering. As particles pass a laser beam inside an optical chamber, a photodiode detects scattered light pulses whose intensity relates to particle size and quantity. Embedded algorithms transform pulses into size-binned counts and mass concentrations (PM1.0/2.5/10). Compared with infrared (IR) dust sensors, laser PM sensors offer lower minimum detectable size (~0.3 μm), better fine-particle fidelity, and often faster, more stable response—ideal for PM2.5-driven AQI and purifier auto-control.

An Infrared (IR) PM dust sensor estimates airborne particle concentration using an infrared LED and a photodetector. As particles pass through the optical path, they scatter and attenuate the IR beam. The received signal is processed to estimate mass concentration—commonly PM2.5 and PM10—sufficient for trend detection, ventilation control, and alarm thresholds at an attractive BOM cost and low power.

A PM sensor measures airborne particles suspended in air—commonly reported as PM1.0, PM2.5, and PM10, where the number denotes the aerodynamic diameter in micrometers (µm). These fractions are closely linked to health risks, filter performance, and ventilation control. Typical outputs are mass concentration (µg/m³) by size fraction and, on some modules, particle number counts per size bin.

oxygen deficiency/enrichment alarms, inerting & nitrogen blanketing, flue-gas/combustion control, welding/laser shielding, food & pharma packaging, lab incubators & bioreactors, PSA/oxygen concentrators, aquaculture, battery rooms

A semiconductor ozone sensor uses a metal-oxide film (e.g., SnO₂-based or proprietary mixed oxides) whose surface chemistry changes in the presence of ozone (O₃). Ozone is a strong oxidizer; when it interacts with adsorbed oxygen species on the MOS surface, the charge carrier density and thus the film resistance shift. By biasing the sensing layer and measuring the resistance (or a conditioned voltage), you obtain a signal correlated to O₃ concentration.