# California eProcure #07A6478

Caltrans Solicits Calibration and Repair Services for RKI Instruments Portable Gas Monitors

**Posted:** September 18, 2026
**Respond By:** October 06, 2026
**Identifier:** 07A6478
**NAICS:** 811219

Caltrans is seeking a contractor to provide calibration and repair services for portable gas monitors used in maintenance operations.
- Government Buyer:
  - California Department of Transportation (Caltrans), Division of Procurement and Contracts, Maintenance Section 07
- OEM Highlight:
  - RKI Instruments is the specified manufacturer for all gas monitors and sensors
- Products/Services Requested:
  - Calibration and sensor replacement services for RKI Instruments GX-2012, GX-2009, and 724-012 Eagle 2 portable gas monitors
  - Sensor replacements include LEL, CO, O2, and H2S sensors
  - Additional services for filters and electrical components, plus hourly unforeseen work
  - Estimated quantities:
    - Calibration: 60 (GX-2012), 400 (GX-2009), 65 (Eagle 2)
    - Sensor replacements: 6–35 per sensor type/model
    - Services on filters/electrical: 50 units
    - Unforeseen work: 200 hours
- Unique Requirements:
  - Contractor must be an authorized dealer certified by RKI Instruments
  - Business location must be within 50 miles of Pomona, CA (verified by Google Maps)
  - Encouragement for small and disabled veteran business participation with specific goals and incentives
- Notable Details:
  - All services must follow manufacturer recommendations
  - Services provided Monday–Friday during business hours; non-routine services as specified

### Description

This solicitation is for the provision of calibration and repair services on portable gas monitors on an as-needed basis for Caltrans. The contractor must provide all labor, tools, equipment, parts, supplies, disposal, and incidentals necessary to perform these services. Bidders must have a current and valid Certificate of Authorized Dealer issued by RKI Instruments and maintain a primary business location within a 50-mile radius of 2650 South Garey Avenue, Pomona, CA 91766. The solicitation encourages participation from small businesses and disabled veteran businesses, with specific goals and incentives outlined.

[View original listing](https://caleprocure.ca.gov/event/2660/07A6478)