RAE — gas detection tubes, hand pumps, personal gas monitors, disposable H2S monitors

ThermoProbe — certified digital thermometers

Druck — pressure and temperature calibrators, loop calibrators, pressure transmitters and transducers, deadweight testers, multi-meters, pneumatic hand pump and low pressure hand pumps with accessories

Gastec — gas detection tubes, and sampling piston pumps

Crystal — digital calibrators, digital test gages