The Casella VOC Pro is an ideal tool for rapid VOC detection and monitoring in air, water and soil. The Casella CEL VOC Pro Photoionization Detector is ideally suited for undertaking rapid surveys for organic vapours for both indoor or outdoor applications for all monitoring and survey applications. The VOC Pro monitor is equipped as standard with a 10.6 eV UV lamp, and has an optional 11.7 eV UV lamp for ionizing chlorinated compounds. The internal sampling pump allows rapid, accurate samples to be taken, giving direct readout of values on the large LCD display. The internal datalogger can store up to 15000 data points which can then be downloaded to a computer using the new VOC Pro software. Dedicated Calibration Key Immediate access to the calibration procedure with more user prompts to easily walk you through calibration completely for higher confidence in calibration. Easy to Use Three modes of operation to suit your needs: 1. Non-logging – Continuous readings for survey and site checking. 2. Tagging – Data logged by tag name or number - ideal for EPA Method 21. 3. Interval Logging – Logs at pre-set intervals as well as displaying the TWA, STEL, PEAK and current reading at all times. Intrinsically Safe Classified as Intrinsically Safe in North America (Class I, Division 1, Groups A, B, C, and D) and Europe (EEx ib m IIC T4 and ATEX) for use in potentially explosive environments.