Trend Thermometers, Wallace & Tiernan gauges and calibrators, are now part of Wika

BSI is your source for WIKA and  former Wallace Tiernan precision pressure gauges, former Wallace Tiernan pressure calibrators and other products.

Please note that WALLACE & TIERNAN is now a trademark of Evoqua Water Technologies LLC, and the products offered here are no longer manufactured under the WALLACE & TIERNAN name.

Precision Pressure Gauges

• Absolute
• Gauge
• Differential
•  
• Models and Specifications

Calibration Products

• Pneumatic Calibrators
• Digital Pneumatic Calibrators
• Digital Pressure Gauges
  
• Barometers 
• Details and Specifications

Repairs and Calibrations

• NIST Traceable calibration and repair of Wallace & Tiernan Gauges and Calibrators
•  
• Request Repair Service

Temperature Products

• Bimetal Thermometers
• Transmitting Thermometers
• Industrial Thermometers
• Solar Digital
• Gas & Vapor
• Thermowells
• Models and Specifications

Pressure Transmitters

• Industrial Pressure Transmitters
• Hazardous Area Pressure Transmitters
• Submersible Pressure Transmitters
• 3A Sanitary Pressure Transmitters
• Models and Specifications

Wika Calibration Products

• Digital Calibration Products
• Mechanical Test Gauges
• Loop Calibrators
• Pressure Pumps
• Mechanical Precision Gauges
• Callibrators-Wally Box