For applications such as test rigs where robustness and accurate pressure monitoring with long-term stability is called for, then the RDP Model TJE pressure transducer from RDP Electronics may be a suitable candidate. The TJE features a unique 'true gauge' design utilising a second welded diaphragm hermetically sealing the strain gauges from external contamination. An 'absolute' version also has an all welded vacuum reference chamber ensuring long term stability. Versions available cover the range from 5 psi (345mBar) to 60,000 psi (4137 bar). In situations where integral electronics are not appropriate they can be used with an inline amplifier such as the RDP S7DC for greater flexibility and security.