Scintillation Radiation Detectors

A Geiger counter detects ionizing radiation events as electrical pulses, while an optical scintillation detector — like those made by OSI — measures fluctuations in a transmitted light beam caused by atmospheric or gas-flow turbulence. OSI's scintillation sensors are specifically engineered for environmental, meteorological, and industrial flow measurement, not nuclear radiation detection.

No. All OSI optical scintillation sensors are factory pre-calibrated and feature drift-free DSP-based designs. Built-in automatic calibration checks and continuous self-diagnostics ensure accurate performance 24/7/365 without any field calibration required, significantly reducing maintenance costs and unplanned downtime.

Yes. OSI's Optical Flow Sensors (OFS-2000 series) are compliant with EPA 40 CFR Part 75 for stack gas flow monitoring. The measurement algorithm is NIST-certified and supported by over 20 million hours of observation data. The LOA-105 is also EPA Method 14 approved for aluminum smelter roof vent airflow measurement.

OSI sensors are engineered for power plants, oil refineries, aluminum smelters, airports, highways, marine environments, military installations, and environmental research stations. They are proven to operate reliably in extreme conditions ranging from -50°C Antarctic environments to tropical rain forests and high-temperature industrial stacks.

OSI sensors have no moving parts and are essentially maintenance-free. Most models require only semi-annual window cleaning if heavily soiled. Built-in self-diagnostics monitor sensor health continuously. The MTBF (Mean Time Between Failure) for all OSI instruments exceeds 80,000 hours, making them ideal for remote and unattended installations.

Yes. Several OSI sensor models — including the OFS-2000, APG-815-DS, ORG Optical Rain Gauge, and LP-WIVIS — are solar and battery compatible, operating on a nominal 12 VDC / 400 mA maximum draw. This makes them suitable for remote sites, ocean data buoys, off-grid weather stations, and unattended environmental monitoring networks.