Jerome J505-Mercury Vapor Analyzer


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Note: Accessory kits (sold separately) are necessary to operate this product. Accessory kits and other requirements like power cords can be purchased using the following links:
Purchase Jerome® accessory kits
Purchase power cords (only for 220V)

Hand-held Atomic Fluorescence Spectroscopy Mercury Vapor Analyzer 

The Jerome® J505 Mercury Vapor Analyzer is a portable fluorescence spectroscopy analyzer. It allows the detection cell to be simpler, smaller, lighter weight, and more durable than competing spectroscopy instruments. The highly efficient optical cell requires less flow to purge the system, allowing the J505 to run at a lower flow rate, minimizing sample dilution as found in competing spectroscopy instruments. 

  • Lightweight: Weighs only 6.5 pounds, less than half that of some atomic absorption mercury detectors.
  • No downtime: Because the J505 uses atomic fluorescence to detect mercury, no regenerations or downtime are needed.
  • Sensitive: Meets and exceeds EPA standards for industrial and residential remediation actions.
  • Few interferences: Atomic fluorescence technology avoids interferences encountered by atomic absorption-based instruments.
  • Proven: The Jerome J505 is in active use by the EPA, Los Angeles County, the City of New York, and many others.

Features and Benefits

  • Atomic Fluorescence Spectroscopy: The advanced technology of the Jerome® J505 eliminates nearly all interferences, ensuring you get accurate and repeatable results in the field or in the lab.
  • Portable: The J505 packs the advanced capabilities of a sophisticated benchtop analyzer into a compact, portable, and powerful device. The detection cell is also smaller, lighter, and more durable than atomic absorption units.
  • Lower Flow Rate: The highly efficient optical cell requires less flow to purge the system, allowing the J505 to run at a lower flow rate and minimizing sample dilution as found in other spectroscopy instruments.
  • Regulatory Compliance: The J505 can detect mercury at levels as low as 0.05 µg/m3, which meets and exceeds EPA and ATSDR standards for industrial and residential remediation actions as well as OSHA, NIOSH, ACGIH, and MSHA action levels.
  • ZERO Regenerations: Because the J505 uses atomic fluorescence spectroscopy to detect mercury, no regenerations or regeneration-related downtime are needed.
  • Search Mode: While in search mode, users are able to continuously draw in samples of air in order to locate the source of mercury contamination, allowing targeted corrective action to be taken quickly.
  • Durable: The J505 is housed in a light, ergonomically designed, the durable metal casing that sets a new precedent for hand-held, low-level mercury analyzers.
  • Data Logging: The integrated data logging system can store data for up to 10,000 test results – including date, time, and up to 100 test sites.
  • Intuitive Interface: The J505 features a color display with an intuitive menu system that makes operation easier than ever before and comes with a USB interface for easy data transfer.


Detection Range:

 0.05 µg/m3 to 500 µg/m3


Standard Mode: 0.01 µg/m3 (10 ng/m3)
Quick Mode: 0.1 µg/m3 (100 ng/m3)
Search Mode: 0.1 µg/m3 (100 ng/m3)


±15% at 0.3 µg/m3
±10% at 1 µg/m3
±10% at 25 µg/m3
±10% at 100 µg/m3

Response Time:

Standard Mode: 28 seconds
Quick Mode: 16 seconds
Search Mode: 8 seconds, then updates in 1-second intervals

Flow Rate:

1 L/min

Result Units:

ng/m3, µg/m3, mg/m3

Auto sample Intervals:

1, 2, 5, 10, 15, 20, 30, 45, 60 or 120 minutes

Integrated Data Storage:

10,000 test results; retain date, time and up to 100 locations


3.5″ (9 cm) color LCD


Rechargeable NiMH
10+ hour life, charges in 3 hours

Power Requirements:

12 VDC for the instrument;
100-240 VAC, 1A, 50-60 Hz for the AC power supply


Auto-resetting fuse

Operating Environment:

5°C to 45°C, non-condensing, non-explosive




12″ L x 6.2″ W x 8.4″ H
(30.5 cm L x 15.7 cm W x 21.3 cm H)


6.5 lbs. (3.0 kg)


1 year, factory parts and labor


UL 61010, CE

Contact our sales team for more information on our Jerome® series. 


Jerome J505 Brochure