Utilizing high-grade, dual-metal strips (typically brass and invar/stainless steel) calibrated to precise expansion coefficients. Spiral-wound coil design guarantees linear pointer movement under thermal stress from 50°C to 300°C (100°F to 600°F) without structural deflection or calibration drift.
Enclosures are cold-drawn from 304 or 316-grade austenitic stainless steel, rendering them immune to high-humidity baking conditions, organic acid vapors, and intense oven sanitization washdowns. Meets strict FDA, NSF, and CE food-contact non-toxicity directives.
Equipped with high-purity, anti-fog, high-temperature tempered glass lenses capable of withstanding instant thermal gradient spikes of over 200°C without fracturing, clouding, or losing dial legibility.
| Specification Metric | Retail/Costco Compliance Standard | Industrial High-Temp Benchmark | Huzhou Accuracy Capability |
|---|---|---|---|
| Measurement Range | 50°C to 300°C / 100°F to 600°F | -40°C to 600°C (-40°F to 1100°F) | Custom Dual/Single Scale Ranges |
| Accuracy Class | ±1.5% to ±2.0% Full Scale | Class 1.0 (±1.0%) / Class 0.5 (±0.5%) | Up to ±0.5% (High-Precision Lab Grade) |
| Material Compliance | FDA Food Grade, RoHS, REACH | 316L SS, Inconel Capillary Options | 100% 304/316 SS ISO 9001 Sourced |
| Certification Marks | CE, UKCA, NSF International | CE, ATEX, ISO 17025 Calibration | CE Certified, ISO 9001:2008 Certified |
| Dial Diameter Options | 2.0 inch (50mm) to 3.0 inch (75mm) | 2.5 inch (63mm) to 4.0 inch (100mm) | Fully Customizable Dial Design & Logo |
Huzhou Accuracy Instrument CO LTD is professionally engaged in the development, sales and service of industrial mechanical pressure gauges, bi-metal thermometers, SF6 manometer, pressure sensor. Products are widely used in various applications such as Mechanical Engineering, Chemical Engineering, Food Industry, Pharmaceutical, and high technology electric appliances.
Established over two decades ago, our pressure gauge and thermometer 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.
Annual output exceeds 2 million units, covering industrial-grade gauges and culinary thermal devices (e.g., stainless steel gauge, black steel gauge, shock-proof gauge, sf6 gauge, oven thermometer, bimetal probe, pressure sensor) for oil/gas, HVAC, commercial food processing, and retail sectors. Exported worldwide with CE, ISO, and SGS certifications.
Our state-of-the-art laboratory conducts 100% thermal cycle tests, pressure cycle tests, and environmental chamber simulations, adhering strictly to ISO 9001 and ISO 17025 standards. Continuous improvement drives our global reputation for "zero-leak" and "zero-drift" performance, supported by a complete 1-year product warranty.
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 certification.
We provide comprehensive turn-key OEM customized blister card packaging, eco-friendly FSC-certified box printing, custom dial color coding (highlighting ideal baking and roasting temperature zones), and high-resolution laser etched branding on stainless steel casings.
To eliminate store returns and protect retail customer goodwill, our production line executes 3-stage thermal calibration testing across freezing, ambient, and high-heat test ovens. Every batch is certified to Acceptable Quality Limit (AQL) 0.65 standard before container loading.
Full documentation suites including CE Declaration of Conformity (DoC), REACH SVHC test reports, RoHS lead-free certifications, and FDA heavy-metal free guarantees are supplied per batch for seamless customs clearance across the EU, US, UK, and APAC regions.
Developing dual-sensor oven thermometers combining traditional mechanical bimetallic dials with ultra-thin Bluetooth Low Energy (BLE 5.2) probe cores, enabling real-time remote smartphone monitoring without sacrificing offline mechanical visibility.
Extending micro-fused silicon pressure and temperature technology into high-vibration industrial oven and autoclaves, providing combined pressure-temperature telemetry under ambient environments up to 500°C.
Pioneering 100% recyclable lead-free stainless steel alloys, petroleum-free bioplastic packaging packaging solutions, and energy-efficient laser welding processes aligned with global ESG corporate directives.
Accuracy Instrument