Explore our certified industrial gauge lineup engineered for extreme durability, zero-leak tolerance, and precise dual monitoring across automotive, oil & gas, and hydraulic systems.
In modern industrial machinery, off-highway automotive systems, marine propulsion units, and heavy hydraulic circuits, real-time monitoring of fluid dynamics is essential to prevent catastrophic mechanical failure. Oil serves as both a primary lubricant and a thermal transfer medium; thus, a simultaneous shift in fluid pressure and thermal equilibrium serves as the earliest warning sign of mechanical distress, seal breakdown, or viscosity degradation.
Historically, procurement managers and design engineers specified separate sensors for pressure and temperature measurements. This traditional methodology required dual port tappings, increased manifold assembly labor, introduced additional leak points, and complicated wire harness routing. Today, specialized OEM oil pressure temperature gauge manufacturers supply integrated, dual-function instrumentation solutions that combine piezo-resistive MEMS pressure cells or precision Bourdon tubes with RTD (Pt100/Pt1000) or bimetallic thermal sensors inside a single ruggedized enclosure.
Monitors critical fluid pressure (0-10 Bar / 0-100 PSI / up to 1000 Bar hydraulic) and oil temperature (-40°C to +150°C) synchronously to identify thermal viscosity drops before friction wear occurs.
Engineered with liquid-filled cases (Glycerin or Silicone oil) and micro-fused glass diaphragm sensing cells, guaranteeing zero pointer flutter under severe 20G engine vibrations.
Constructed with IP67/IP69K ingress protection, 316L stainless steel wetted parts, and laser-welded joint seals to resist aggressive synthetic lubricants and corrosive environments.
The global instrumentation supply chain has consolidated around specialized high-tech industrial hubs in Eastern China, most notably in Zhejiang Province. Combining mature raw material supply networks (high-purity 316L stainless steel, specialty brass alloys, precision capillary tubes) with state-of-the-art automated CNC machining and robotic laser welding, Chinese gauge manufacturers offer an unmatchable value proposition: tier-one mechanical precision coupled with agile OEM custom design execution.
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 advanced pressure sensors. Our products are widely deployed in critical sectors such as Mechanical Engineering, Chemical Processing, Marine Industries, Pharmaceuticals, and High-Technology Electric Appliances.
Established over two decades ago, our modern pressure gauge manufacturing facility spans 3,000 square meters, equipped with automated production lines, laser calibration rigs, and climate-controlled testing laboratories. As a trusted OEM partner for international buyers, we seamlessly integrate continuous innovation with precise engineering.
As a specialized manufacturer, Huzhou Accuracy Instrument provides extensive custom configuration matrix options to meet exact global engineering specifications, military-grade standards, and private-label brand requirements.
| Engineering Parameter | Standard OEM Specifications | Custom High-Spec / Harsh Environment Options |
|---|---|---|
| Pressure Measuring Ranges | 0...1 Bar to 0...100 Bar (0-15 PSI to 0-1500 PSI) | Custom dual-scale dials up to 0...1000 Bar (15,000 PSI) & vacuum/compound ranges |
| Temperature Measuring Ranges | -20°C to +120°C / 0°F to 250°F | -50°C to +300°C with custom bimetallic stem length or Pt100/Pt1000 RTD output |
| Accuracy Class (ISO/EN 837-1) | Class 1.6% or Class 2.5% Full Scale | High precision Class 1.0% FS or ±0.5% FS with micro-fused ceramic sensors |
| Dial Diameter Sizes | 1.5" (40mm), 2.0" (50mm), 2.5" (63mm), 4.0" (100mm) | 6.0" (160mm) solid-front safety cases & custom rectangular automotive dashboard cutouts |
| Wetted Parts Material | HPb59-1 Brass Alloy / Phosphor Bronze | AISI 316L Stainless Steel, Monel K-500, Hastelloy C-276 for corrosive media |
| Case & Bezel Construction | Black painted steel or ABS engineered plastic | SS304/SS316 stainless steel with bayonet ring, IP67 dust/water resistant seal |
| Thread Connection Standards | 1/8" NPT, 1/4" NPT, G1/4", M14x1.5 | Custom metric fine threads, BSPT, SAE J514 straight thread with O-ring boss |
| Electrical Switch Contacts | Optional SPDT mechanical limit switch | Explosion-proof magnetic snap-action contacts, 4-20mA, 0.5-4.5V, or CAN-bus digital output |
The industrial instrumentation sector is undergoing a monumental shift towards smart connected diagnostics. As global machinery fleets adopt Industry 4.0 paradigms, mechanical pressure and temperature gauges are evolving into hybrid analog-digital sensor nodes.
Modern off-highway equipment (excavators, agricultural tractors, mining haulers) requires gauge data to feed directly into the central ECU via J1939 CAN-bus standard. Factory customized dual pressure-temperature transmitters convert physical mechanical movement into digital signals, enabling remote telemetry tracking and predictive maintenance alerts before failure occurs.
Traditional glued strain gauges suffer from thermal drift and glue degradation over time when exposed to hot engine oils (+120°C). Leading OEM factories now utilize glass microfusing technology, melting silicon strain gauges directly onto stainless steel diaphragms at 700°C. This yields zero thermal drift, exceptional overpressure protection (up to 4x rating), and lifetime stability.
Dual oil pressure and temperature gauges serve as critical nerve endings across diverse industrial ecosystems. Huzhou Accuracy Instrument designs specialized OEM solutions tailored for specific field environments:
Continuous highway haulage and extreme ambient temperature shifts demand heavy-duty oil pressure/temp indicators. Custom 2.5" liquid-filled dashboard gauges protect commercial truck diesels against oil thinning during steep mountain ascents.
Saltwater exposure and intense engine room vibration cause standard gauges to fail rapidly. Our SS316 explosion-proof electric contact bi-metal thermometers and pressure gauges provide zero-corrosion performance for marine main engines and auxiliary gensets.
High-frequency pulsation in hydraulic presses rapidly damages internal gauge mechanisms. Factory-installed restrictive screws, glycerin filling, and diaphragm seals guarantee steady readings and long service life up to 700 Bar.
We adhere strictly to the benchmark of "reasonable price, accurate delivery, and superior quality." Production processes operate under ISO 9001:2008 and ISO 17025 accredited quality management protocols. Every OEM gauge batch undergoes 100% pressure cycle testing, thermal shock testing, and helium leak detection prior to global shipment.
Browse our secondary product lineup spanning gas density monitors, thin-film pressure transducers, explosion-proof bimetal switches, and common rail gauges.
Accuracy Instrument