Distributor of Safety
Wise El SantoReisOliaZinkReis


In-House and Field/Mobile Service Centers*

Our service centers underscore our commitment to customer satisfaction. Instruments and other items require regular maintenance for reliable operation. To offer improved service, we established field service, mobile service and in-house repair facilities complete with all the necessary diagnostic equipment. Our experienced service staff will keep your instruments and breathing air equipment functioning correctly longer. We are capable of handling a customer's needs from specialized calibration kits to board level repair and SCBA rebuilds.

With our stock of vital parts, and experienced factory trained technicians, downtime is kept to a minimum. We maintain a repair history of every item that comes through our repair system. Each customer receives a detailed printout of repairs and parts used with their returned product.

Companies with SCBA's and instruments are often reluctant to send equipment away for service. Their fear is to have an emergency without enough equipment to respond. We have solved this concern by developing mobile repair trailers. Our trailer can be brought to any location for on-site product repairs. The SCBA's and instruments are immediately available in the event an emergency arises.

Instrument Service*

Air Samplers

Available maintenance procedures for air sampling instruments include cleaning internal parts, verifying battery condition, and replacing maintenance parts such as filters, valves and diaphragms.

Sensor Replacement

We can replace your worn out sensors to bring your instrument back to original specifications.

Circuit Board Repairs

Our technicians work with the electronics that control your gas detection instruments. By repairing or replacing your boards, the instrument can be returned to full operating capabilities.

Noise Instruments

We will check the calibration of your noise instrument to ensure it is measuring correctly.

Testing Services*

Respiratory Testing & Cleaning

On-site or in-house, our ultrasonic cleaner uses hospital grade disinfecting chemicals to thoroughly clean protective face masks according to OSHA, ANSI and CSA regulations. Periodic cleanings reduce the transfer of germs and extend a respirator's life span.

Respiratory Fit Testing - PortaCount

  • Quantitative respiratory fit testing
  • Can test a wide variety of tight-fitting respiratory equipment, including N95 disposables
  • Required annually

    Level A Suit Pressure Testing

  • On site or in-house
  • Required annually or after each use

    SCBA Function Test and Repair

    With Sperian's POSICHECK3, we can test all the major functions of your SCBA including positive pressure levels, exhalation resistance, static pressure, alarm levels, pressure gauge function, and system leaks.

    Air Quality Tests

    Technicians go on site to check for excessive levels of moisture, oxygen, carbon monoxide, carbon dioxide, oil, and hydrocarbons. The results of the test verify the proper operation of your compressor and filters.

    *Available services vary by branch. Call for details.


  • Headquarters: St. Louis Wise 314-428-3100 800-727-8541 11000 Linpage Place, St. Louis, MO 63132
    St. Louis REIS 314-426-5600 800-777-7347 11022 Linpage Place, St. Louis, MO 63132
    OHA Instruments StL 314-426-5600 800-888-4642 11022 Linpage Place, St. Louis, MO 63132
    Boston 978-557-9070 877-257-3263 15 Aegean Drive, Methuen, MA 01844
    Denver 303-329-9016 800-677-7347 5720 Holly St., Commerce City, CO 80022
    Houston 713-944-7300 800-234-2377 9187 Winkler, Houston, TX 77017
    Jacksonville 904-693-8781 877-655-7347 1331 Pickettville Rd., Unit 1, Jacksonville, FL 32220
    Kansas City 913-492-9444 800-888-7347 16210 West 110th Street, Lenexa, KS 66219
    Little Rock 501-562-7700 800-901-4678 6190 Scott Hamilton Dr., Little Rock, AR 72209
    Louisville 502-637-4337 2428 Crittenden Dr, Louisville, KY 40217
    Salt Lake City 801-978-3755 800-559-7347 1995 S. 4490 West, Salt Lake City, UT 84104
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