Sitemap Wallace & Tiernan is a manufacturer of High Precision Gauges, Indicators &Transmitters , Test Gauges, Differential Gauges and Calibration & Test Equip.    Call - (800) 576- 6308 or Mail for assistance ; Wallace & Tiernan precision pressure gauges and calibrators are now manufactured by WIKA Instrument Corp. in Germany.  They imported into the U.S. where they are certified to NIST Standards before shipment. 5672 Bolsa Avenue Huntington Beach, CA-92649 - USA  - Ph (714) 751 - 7512  - Fax (714) 751 - 0213