When purchasing the DRTR-AL pressure transmitter，are you confused by quotation differences of up to 30% for products with the same model number？As a professional sensor manufacturer，Xi'an Shenghongchuang analyzes the key factors affecting price for you，from the MBS33 series to the KYB-C3 model，helping you identify the quality differences and cost-performance ratio of diffused silicon liquid and gas pressure sensors。

I、Core component differences：quality grading of diffused silicon chips

The core component of the DRTR-AL pressure transmitter is the diffused silicon sensing element，and the purity grade of silicon wafers used by different suppliers directly affects performance stability。Taking the MBS33-060G3067 pressure transmitter as an example，the procurement cost difference between grade A silicon wafers（purity 99.999%）and grade B silicon wafers（99.99%）is 18%-22%。Xi'an Shenghongchuang uses wafers imported from Germany and has passed ISO/TS 16949 automotive-grade quality certification，ensuring that accuracy remains ±0.1%FS under -40℃~125℃ operating conditions，while some low-priced products use recycled silicon wafers，with temperature drift reaching ±0.5%FS。

II、Process standard comparison：fully automatic packaging vs semi-manual assembly

Our actual tests of KYB-C3 pressure transmitters from 6 brands on the market found that products using laser welding fully automatic packaging processes（such as Shenghongchuang PMB-S series）have an average service life of up to 10 years，while products using manual glue dispensing processes have a service life of only 3-5 years。This explains why the ATEX-certified version of the DRTR-AL explosion-proof pressure transmitter（compliant with IECEx IEC 60079 standards）is 25% more expensive than the standard version。The essence is that the CNC machining accuracy requirement for the explosion-proof housing reaches 0.01mm，whereas low-priced products often simplify the sealing structure。

Key process cost comparison table

III、Hidden cost traps：analysis of certification and after-sales costs

A MBS33-060G3009 pressure transmitter that truly complies with the GB/T 17614-2018 standard must include a third-party test report，and CE certification fees alone account for 3%-5% of the quotation。The DRTR-AL series provided by Xi'an Shenghongchuang all come with SIL3 functional safety certification，while some "genuine" suppliers may omit key items such as lightning surge immunity testing（IEC 61000-4-5）。What deserves more attention is：low-priced products usually do not include calibration services，while our diffused silicon liquid and gas pressure sensors provide free periodic calibration for 3 years，which can reduce maintenance costs by 30% in long-term use。

IV、Procurement strategy recommendations：how to balance budget and performance

For technical evaluators with limited budgets，it is recommended to prioritize economical product lines such as the MBS33-060G3012 pressure transmitter，which uses an imported silicon chip + domestic packaging solution。Its price is 15% lower than KYB-C3，but its key indicators are still superior to industry standards。If used in harsh environments such as petrochemical applications，the DRTR-AL explosion-proof model with a 316L stainless steel welded diaphragm must be selected。Xi'an Shenghongchuang supports customized services，such as optimizing the damping characteristics of wind pressure transmitters for wind power industry customers，which can improve response speed by 20% compared with standard models。

Why choose Xi'an Shenghongchuang？

As one of the few manufacturers in Northwest China with a complete diffused silicon sensor production line，we provide：①a technical team with 18 years of industry experience to support model selection；②ready stock inventory of the full range of MBS33/KYB-C3/PMB-S pressure transmitters；③a 72-hour rapid-response after-sales network。Click the online consultation on the official website to obtain the latest quotation for the DRTR-AL pressure transmitter and receive a parameter comparison report for similar products。