Explore our high-precision gauges, remote capillary thermometers, and heavy-duty pressure transducers manufactured under ISO 9001:2008 and CE directives.
Understanding the transition from disparate single-variable sensors to integrated dual-parameter mechanical and electronic monitoring solutions.
In modern industrial hydraulic systems, heavy equipment powertrains, marine propulsion engines, and power generation turbomachinery, monitoring thermal and hydraulic fluid states is vital. Historical configurations required separate tapping points for oil temperature switches and pressure transducers.
Today’s engineering preference leans toward dual-parameter combination gauges. By consolidating oil temperature and oil pressure measurement into a single instrument casing, equipment manufacturers (OEMs) achieve a 50% reduction in manifold drilling, minimize potential fluid leak paths, and streamline dashboard telemetry integration.
CE compliance is a strict mandatory prerequisite for placing industrial equipment on the European Economic Area (EEA) market. For oil temperature pressure combo gauges, CE certification ensures adherence to:
Global procurement teams searching for CE Certification Oil Temperature Pressure Combo Gauge Suppliers & Factories require partners capable of providing:
Integrating dual-parameter combo gauges reduces overall Bill of Materials (BOM) cost by up to 28% while simultaneously lowering potential hydraulic leak vectors by 50%. CE-certified combo gauges ensure seamless international export compliance without regulatory friction.
An engineering breakdown of Bourdon tube pressure mechanisms, bimetal & capillary thermal systems, and thin-film piezoresistive hybrid units.
Mechanical combo gauges feature two distinct measuring systems operating within a single IP65/IP67 enclosure:
In heavy-duty diesel engines, mining trucks, and hydraulic pumps, violent mechanical vibrations can destroy pointer movements and cause metal fatigue. Professional manufacturers employ:
Modern Industry 4.0 applications demand digital telemetry alongside visual analog dials. Next-generation CE-certified combo sensors combine piezoresistive thin-film silicon pressure cells with PT100/PT1000 RTD thermal elements, delivering simultaneous 4–20mA, 0–10V, or Modbus RTU digital outputs.
| Parameter / Specification | Standard Industrial Grade | Heavy-Duty / Marine Grade | Explosion-Proof / ATEX Grade |
|---|---|---|---|
| Pressure Accuracy | ±1.6% of Full Scale | ±1.0% of Full Scale | ±0.5% or ±1.0% High Precision |
| Temperature Accuracy | ±2.0°C Class 2 | ±1.0°C Class 1 | ±0.5°C RTD/Capillary Hybrid |
| Pressure Range Options | 0 to 6 bar / 0 to 10 bar | 0 to 25 bar / 0 to 100 bar | 0 to 600 bar High Pressure |
| Temperature Range | 0°C to +120°C | -40°C to +160°C | -50°C to +200°C Extended |
| Case Materials | Black Steel / AISI 304 SS | AISI 316L Stainless Steel | Cast Aluminum / Explosion Proof Enclosure |
| Ingress Protection | IP54 / IP65 | IP67 Shatter-Proof | IP68 / ATEX Ex d IIC T6 Gb |
Where high-reliability oil temperature and pressure combo gauges are essential for system protection and operational performance.
In construction machinery, excavators, and agricultural tractors, transmission fluids and hydraulic power units (HPUs) suffer massive pressure spikes and rapid heating. Combination gauges monitor oil viscosity degradation by displaying thermal expansion alongside operating pressure in real-time, preventing pump cavitation and seal breakdown.
Shipboards and offshore platform engines require severe shock-proof and salt-mist corrosion resistance. Stainless steel capillary combo gauges allow engine operators to mount the dual-dial display outside high-vibration zones while running flexible armor-shielded capillary tubes to crankcase oil sumps.
Critical power distribution units, SF6 gas density monitors, and oil-immersed power transformers depend on precision dual-function gauges. Real-time tracking of transformer insulating oil temperature and dielectric pressure prevents catastrophic arc faults and catastrophic equipment failure.
Huzhou Accuracy Instrument CO LTD is professionally engaged in the development, sales, and service of industrial mechanical pressure gauges, bi-metal thermometers, SF6 manometers, and pressure sensors. Products are widely used in various applications such as Mechanical Engineering, Chemical Engineering, Food Industry, Pharmaceuticals, and high-technology electric appliances.
Established over two decades ago, our pressure gauge manufacturing facility spans 3,000 square meters, equipped with advanced production lines and rigorous quality control systems. As an industry leader, we integrate innovation with precision engineering to deliver reliable measurement solutions for global clients.
State-of-the-art 3,000 m² Production Facility with Laser Calibration & Testing Rig
We have long followed the concept of "reasonable price, accurate delivery, good quality" and several business management models to keep our production quality above the required benchmark under ISO9001:2008 certified standards. Our laboratory conducts 100% pressure cycle tests and environmental simulations, adhering to ISO 9001 and ISO 17025 standards, backed by a zero-leak reputation and comprehensive warranty.
Decades of continuous innovation powering global industry automation.
The evolution of combo gauges toward wireless telemetry, self-diagnostic sensors, and smart IoT integration.
Transitioning from traditional analog pointer movements to digital IO-Link enabled combo transmitters. This transition allows remote parameterization, continuous health self-diagnostics, and automated alert triggering for over-temperature or pressure anomalies direct to PLC systems.
Integration of LoRaWAN, NB-IoT, and WirelessHART modules inside IP67 gauge housing. Battery-operated combo gauges transmit temperature and oil pressure data across long distances in mining, pipelines, and remote power installations without requiring physical cabling.
By pairing dual pressure/temperature data streams with cloud edge analytics, factory operators can predict oil degradation, pump impeller wear, and heat exchanger clogging before complete mechanical failure occurs.
Explore our range of shock-resistant liquid filled gauges, differential pressure transmitters, and stainless steel instruments.
Essential answers regarding CE certification, installation, customization, and quality standards for global industrial buyers.
CE Certification indicates that the combo gauge complies with essential European Health, Safety, and Environmental protection directives. Specifically, for combo gauges, this encompasses the Pressure Equipment Directive (PED 2014/68/EU) to ensure structural integrity under pressure, as well as EMC 2014/30/EU and ATEX 2014/34/EU for electric contact or explosion-proof gauge variations.
Combination gauges integrate both thermal and hydraulic pressure readings into a single fitting point. This design reduces process connection points by 50%, significantly decreases potential hydraulic leak paths, lowers installation time, saves dashboard space, and reduces total equipment component procurement costs.
Filling the gauge case with Glycerine or Silicone oil cushions internal mechanical linkages, dampens rapid pointer flutter caused by engine or pump vibration, provides continuous lubrication to movement gears, and prevents internal condensation and dial fogging under severe thermal cycling.
Yes. Huzhou Accuracy Instrument provides comprehensive OEM/ODM customization services. We offer custom connection threads (1/4 NPT, 1/2 NPT, BSP, BSPT, M20x1.5), stem lengths, flexible armored capillary tubes up to 10 meters, dual scale dial logos, and customized electrical contact configurations.
Our manufacturing plant operates under an ISO 9001:2008 certified quality management system. Every instrument undergoes 100% pressure cycle testing, thermal accuracy verification, leak testing, and laser calibration prior to packaging, ensuring a zero-leak performance record supported by a one-year factory warranty.
Accuracy Instrument
