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Contact Us   Drilling Instrumentation HDI 100 Mud Gauge HDI 2000B Panel Gauge HDI 2021 4-20mA Transmitter HDI 2100 Stroke Counter HDI 2200 Choke Position Indicator HDI 2300 Cement Gauge HDI 2400 Pressure Gauge HDI 3300 Temperature Gauge HDI 9000 Choke Control Console Address: 4130 Directors Row, HOUSTON, TX 77092 U.S.A. Telephone: 713-688-8555 Fax: 713-688-2228 For pricing information, please contact Craig S. Hanna at: craig@hdigauges.com For purchasing information, please contact Jessica Martinez at: purchasing@hdigauages.com For technical support, please contact Jim Napier at: jim@hdigauges.com - 713.818.3803 If you are applying for one of our positions, please send your motivation letter and résumé to: hr@houstondigital.com Replace Hydraulic Relics with "Field-Proven" Technology! Click here for the HDI 100 The Ultimate Mud Gauge