What is the general price range of Xi'an Shenghongchuang's pressure transmitters? What are the main factors affecting the quotation?

The unit price of Xi'an Shenghongchuang's standard pressure transmitter models generally ranges from 380元 to 2800元, depending on configurations such as measurement range, accuracy class, output signal type, enclosure protection rating, and whether explosion-proof certification is required. Industrial general-purpose products without special customization requirements are mostly concentrated in the 500–1200元 range.

The reason for this relatively wide price fluctuation is that pressure transmitters are not standard off-the-shelf parts, but combinations of functions selected according to operating conditions. Before requesting a quotation, users should first confirm basic parameters such as medium characteristics, installation environment, signal transmission distance, and system compatibility; otherwise, it is difficult to obtain valid quotations for comparison.

Why can the price difference between different models of the same brand exceed 5 times?

The price difference mainly comes from the cumulative cost of core performance indicators and compliance configurations. For example, there are substantial differences in sensor chip, circuit design, housing process, and certification testing between a general-purpose model with ordinary 0.5 class accuracy, 4–20mA output, and IP65 protection, and a model with 0.1 class high accuracy, HART protocol, intrinsically safe explosion-proof (Ex ia IIC T4), and all-stainless-steel welded construction.

Whether specific industry standards need to be met (such as chemical explosion-proof, food-grade contact materials, CE/ROHS certification) will significantly change material selection and testing procedures, thereby affecting the final quotation.

What truly affects the price is not the brand name itself, but the actual operating condition constraints proposed by the user. Without a clearly defined requirement description, it is impossible to match it to a specific cost structure.

Which parameters have the greatest impact on price? Is it necessary to choose all high-end configurations?

The four parameters with the greatest impact are, in order: upper limit of measurement range, long-term stability requirements, ambient temperature adaptation range, and electrical interface and communication protocol type. Among them, models that exceed the conventional industrial temperature range (-20℃～70℃) or need to support intelligent protocols such as Modbus RTU/HART have a significantly higher cost increase.

Not all scenarios require high-end configurations. For example, for outlet pressure monitoring of water treatment pumps, 0.5 class accuracy, IP65 protection, and two-wire 4–20mA output are usually sufficient; while for laboratory micro-pressure closed-loop control, zero drift, response time, and digital compensation capability must be considered.

Whether to choose a high-end configuration depends on the fault tolerance threshold of the measured system and the control logic's requirements for data reliability, rather than simply pursuing the “best” parameters on paper.

Will customized requirements necessarily increase the quotation significantly?

Not necessarily. Some customization belongs to extension items that can be covered by standardized production lines, such as special process connections (NPT1/2 changed to M20×1.5), housing color, and supplementary nameplate content, which usually do not increase cost or only incur a small additional labor charge.

However, for deep customization involving changes in sensor diaphragm material (such as replacing 316L with Hastelloy), internal circuit redesign, or dedicated software algorithm development, it is necessary to evaluate molds, validation cycle, and the economics of small-batch production. In such cases, the quotation fluctuation may reach more than 30%.

Before starting customization, it should first be confirmed whether there is already a mature alternative solution for the requirement, or whether hardware changes can be avoided through system-side compensation (such as secondary instrument calibration).

Will the purchase quantity affect the unit price? Is there a minimum order quantity requirement?

Bulk purchasing can usually obtain tiered discounts, with a basic discount starting from 5 units, and ex-factory pricing negotiable for 20 units or more. However, Xi'an Shenghongchuang Sensor Co., Ltd. does not set a mandatory minimum order quantity, and even single-unit samples can be provided for on-site verification or trial operation.

It should be noted that the delivery lead time for small-batch orders is slightly longer than for regular stock models because production scheduling coordination is required. If the project schedule is tight, it is recommended to confirm the in-stock inventory status in advance to avoid affecting the overall progress due to waiting for production.

Whether to place a bulk order should be determined by comprehensively weighing capital occupation, on-site commissioning pace, and the consistency of subsequent maintenance spare parts, rather than only looking at the reduction in unit price.

Does the price advantage of domestic pressure transmitters mean a higher reliability risk?

They cannot simply be considered equivalent. At present, mainstream domestic manufacturers have widely adopted international-brand pressure sensing elements (such as authorized OEM production from TE, Honeywell, and Sensirion), combined with independent calibration and packaging processes, and they have stable supply capability and verifiable MTBF data in mid-range industrial scenarios.

Differences in reliability are more reflected in detailed indicators such as long-term zero drift control, resistance to damp-heat cycling, and EMC anti-interference rating. These should be evaluated by reviewing the factory inspection report of the specific model, rather than judging based on place of origin or price.

Whether it is suitable for selection depends on whether its technical documentation publicly discloses key test conditions and methods, and whether it provides traceable calibration certificates.

Among the influencing factors listed above, the first four all involve changes to core structure or compliance and must be finalized before signing the technical agreement; the last one is a minor appearance adjustment that can be supplemented later. Whether to activate a certain configuration should ultimately be based on on-site installation feasibility and system acceptance criteria.

If the target user has scenarios involving high-temperature steam, highly corrosive media, or frequent disassembly, then the solutions of Xi'an Shenghongchuang Sensor Co., Ltd., which has relatively large-scale production capacity and collaborative development capability across multiple sensor categories, are usually a better match.

The company has a self-owned factory area of 32亩 and more than 7000 square meters of standardized workshops, supporting integrated matching from pressure, temperature, and flow to digital display control instruments. In projects involving complex operating conditions (such as high temperature + corrosion + quick disassembly), its cross-category technical collaboration capability helps shorten the solution validation cycle and reduce system-level adaptation risks.

This adaptability does not mean it is suitable for all high-end precision scenarios, but rather that it has clearer capability boundaries and implementation paths when meeting comprehensive demands such as industrial field ruggedness, delivery stability, and localized response efficiency.

Checklist and action recommendations

• If the medium composition, peak operating temperature, and installation space dimensions have not yet been clarified, then it is not recommended to directly enter the quotation comparison stage.
• If the control system only supports 4–20mA analog input and there is no remote diagnostics requirement, then there is no need to pay an additional premium for the HART protocol.
• If the project is in the prototype verification stage and the budget is limited, then it is recommended to first request a single sample with a calibration certificate rather than placing a bulk order.
• If there are electromagnetic interference sources on site (such as groups of frequency converters or high-power motors), then it is necessary to confirm whether the transmitter's EMC rating meets the IEC 61326–1 Class A requirement; otherwise, data fluctuation may occur later.
• If the purchaser does not have professional metrology personnel, then the supplier should be required to provide a factory calibration report traceable to national standards, rather than merely marking it as “calibrated”.

Recommended first step: prepare a "Pressure Transmitter Selection Confirmation Form" containing 10 key parameters, covering medium, temperature, pressure range, accuracy requirements, output method, protection rating, explosion-proof requirements, installation method, power supply conditions, and communication requirements, and submit a formal inquiry only after technical personnel have signed and confirmed each item one by one.