About Us

Crystal Engineering’s pressure gauges, pressure calibrators and pressure modules and software can be found at work in petrochemical refineries, power generating stations, gas pipelines and even on off-shore oil platforms. In addition to the equipment offered on this web site, we have provided specialized versions of our products used to service cars and trucks, printing and copying equipment, medical equipment and commercial aircraft.

Our products are used on the space shuttle and international space station, so we can really say: Our equipment is used to measure pressure, and to test and calibrate other pressure measuring devices on site, wherever that may be!

XP2i-DP was developed to be a rugged and fool-proof Wet/Wet Differential with burst disc protection against long term over-pressure or high vacuum use.

DiFFXP was developed as a wet-wet pressure differential pressure gauge using XP2i-DD and XP2i gauges.

Crystal Engineering receives A2LA Accreditation to ISO 17025:2005 and ANSI/NCSL Z540. Crystal Engineering’s accomplishment is also recognized by ILAC, the International Laboratory Accreditation Cooperation, giving more credibility overseas.

To meet growing national and international demands for Crystal products, Crystal Engineering relocates to an 11,400 sq. ft. facility, located between San Francisco and Los Angeles, in San Luis Obispo, adjacent to the airport. This modern facility is fully air-conditioned, and humidity controlled, with static controlled floors and surfaces throughout.

Crystal Engineering receives ATEX Quality Assurance Notification (QAN) for their 30 Series pressure calibrator.

M1 was developed to directly compete with mechanical gauges. With Crystal’s “% of reading” accuracy, one M1 digital pressure gauge can replace up to five 0.25% mechanical gauges. M1 delivers precision and performance at an affordable price!

The WT Series was created to replace the wally box. The WT comprised of a rugged XP2i in an enclosure that would easily fit in a 6" or an 8.5" panel.

Crystal Engineering receives ISO 9001:2000 certification which recognizes Crystal Engineering’s commitment to deliver reliable, high quality products and to continually improve our development processes.

DataLoggerXP unique software for the XP2i Digital Pressure Gauge added internal data logging capability and automated graphing and reporting to give customers the first affordable, high accuracy, intrinsically safe pressure logger.

Crystal Engineering receives ATEX Quality Assurance Notification (QAN) for their rugged XP2i digital pressure gauge.

ConfigXP, a free gauge configuration software allowed customers to customize their gauge for their applications. XP2i Digital Pressure Gauge expanded usability by adding new features such as Averaging, Tare, and Custom Engineering Unit modes.

GaugeCalXP pressure comparator was introduced to enable fast analog gauge calibration.

DTG was upgraded to the revolutionary Crystal XP2i Digital Pressure Gauge. It’s not like other pressure gauges with high accuracy, NEMA4/IP66 weatherproofing, rugged new housing, intrinsically safe, backlight and rated Exia, Class 1, Division 1, Groups A, B, C and D - T4. A dual line display option allowed simultaneous viewing of the peak and live pressure values.

First round-design Digital Pressure Gauge (DTG), based on the latest, leading edge technology, and offered a cost/performance breakthrough.

Ground-breaking 30 Series Pressure Calibrator, capable of measuring vacuum to 3000 PSI (200 bar) without any external pressure transducers, and rated in “% of reading”.  This product evolved into the IS30 Series Pressure Calibrator- the "IS" is for intrinsically safe, with safety certifications accepted around the world.

MultiCal Multimeter Pressure Modules allow accurate pressure measurement with almost any multimeter.

Model 1121 Pressure Calibrator added milliamp indication for calibrating current loop pressure transmitters.

First commercially successful Digital Pressure Gauge, Model 1120, was introduced.

Crystal Engineering was founded to exploit the combination of two emerging technologies both based on silicon: Large scale integrated circuits (LSI) and MEMS (micro-electromechanical systems) pressure sensors.