At-838 Professional Breath Alcohol Detector with 0.000-0.199%BAC Range and 99% Accuracy

Designed for professional use in law enforcement roadside checks and workplace safety programmes, the At-838 breath alcohol detector offers a portable, battery-powered solution for objective alcohol testing. Its core function is to measure breath alcohol content (BAC) within a defined 0.000-0.199% range, providing a digital reading with a stated 99% accuracy. This black unit is intended for use on drivers and other personnel classified as dangerous operators, where alcohol impairment poses a direct safety risk. With a quick 10-second preheating cycle and a 5-second reaction time, it facilitates efficient testing workflows without prolonged delays.

Technical Specifications and Operation

The At-838’s performance is defined by several key technical parameters provided in its specification. These figures govern its practical application and set expectations for its use in field conditions.

Measurement Range and Accuracy

The detector operates within a 0.000 to 0.199%BAC (Blood Alcohol Concentration) measurement range. This specific scale covers the critical thresholds relevant for legal and safety compliance in many jurisdictions. The manufacturer states a measurement accuracy of 99%, which indicates a high degree of precision for its readings. It is crucial for users to understand that accuracy claims pertain to the device's sensor under controlled testing conditions and do not account for all variables present in real-world field use.

Power and Operational Timing

Portability is a key feature, enabled by power from two standard AAA alkaline batteries, with the device running on a 3V circuit. This eliminates the need for mains power, making it suitable for vehicle use and remote locations. Operational speed is defined by two timings: a 10-second preheating time required to bring the sensor to its optimal operating temperature before a test, and a 5-second reaction time from sample intake to result display. These combined 15 seconds enable a relatively swift testing procedure.

Intended Use and Application Scenarios

The source text explicitly identifies the target users for this device, framing its primary professional applications. Understanding this intended use is essential for determining its suitability.

Roadside Driver Testing

The At-838 is specified for use on drivers, positioning it as a tool for roadside law enforcement or workplace driver screening programmes. In this context, its portability, battery operation, and quick result time are practical advantages. The 0.000-0.199%BAC range directly corresponds to legal limits, allowing officers or safety managers to obtain an immediate, quantifiable indication of a driver's alcohol level.

Workplace Safety for Dangerous Operators

Beyond drivers, the device is also intended for testing "other dangerous operators." This broad category could include personnel operating heavy machinery, industrial plant equipment, or any role where impairment significantly increases accident risk. In such workplace safety environments, the detector serves as a preventative checkpoint, helping to enforce sobriety policies before a shift or following an incident.

Practical Considerations and Value

When evaluating the At-838, its value lies in the concrete specifications that support its professional role. It is a tool defined by its measurable performance parameters rather than subjective benefits.

Defined Performance Parameters

The value of this detector is anchored in its stated technical specs: the precise BAC range, the 99% accuracy claim, the 10-second preheat, and the 5-second reaction time. These provide a clear, fact-based framework for its capabilities. Users can rely on these figures to assess its fit for specific testing protocols where speed and a defined measurement window are required.

Utility in Professional Contexts

The primary value proposition is utility within its defined professional contexts—roadside enforcement and workplace safety. Its design addresses the need for a portable, quick-reading instrument that provides an objective data point. The choice of standard AAA batteries enhances this utility by simplifying power logistics compared to proprietary battery packs or mains-dependent units.