Gas Detectors require regular maintenance service.  These detectors typically use Electro-Chemical (EC) sensors, that are similar to a battery, in design. Most Electro-Chemical (EC) sensors have a typical shelf and working life of 2-3 years. Manufacturers place date codes on each sensor that indicate the year of manufacture.  Sensors should be replaced at regular service intervals to prevent failure during use.

Typical maintenance service includes: sensor replacement, filter replacement, pump cleaning, battery and sample tube replacement.  Safety Instruments provides a written estimate that itemizes all labor and parts required prior to performing any repairs.  As outlined in OSHA 1910.146(d)(4), the employer must provide equipment that is properly maintained.