India's pioneering manufacturer of industrial instrumentation since 1981. First-in-India innovations in Dry Block Calibration Baths, Mineral Insulated Cables & Digital Temperature Gauges. Serving process industries across India and globally.
Industrial temperature sensing for all process applications
1mm–20mm sheath dia, Simplex/Duplex/Triplex
Dry Block Baths, Pressure Calibrators & more
Digital & mechanical, ±0.075%FS accuracy
First in India to manufacture Dry Block Temperature Calibration Baths, Mineral Insulated Cables with indigenous technology, Digital Temperature Gauges & Digital Manometers.
Altop Industries Ltd is an ISO 9001:2015 certified company which believes in meeting customer requirements using innovative and best available technology coupled with global standards. Established in 1981, we have grown to become a leading provider of high quality Temperature, Pressure and Calibration Instruments for process industries in India and abroad.
Based at GIDC Industrial Estate, Makarpura, Vadodara, we operate with offices in Mumbai, Visakhapatnam and representatives across India and UAE, serving a diverse range of industries with precision instruments built to international standards.
Our instruments are certified to the highest international standards, ensuring reliability, safety and performance across demanding industrial environments.
Quality Management System certified — ensures consistent product quality and continual improvement across all operations.
ATmosphères EXplosibles certification for instruments used in explosive and hazardous environments in oil, gas and chemical plants.
European Conformity marking certifying our products meet EU safety, health and environmental protection standards for export markets.
National Accreditation Board for Testing and Calibration Laboratories — our calibration lab meets the highest metrological standards.
From temperature sensing to precision calibration — our comprehensive product range covers every instrumentation need for process industries.
Industrial-grade thermocouples for accurate temperature measurement in extreme process conditions. Available in all standard types.
Resistance Temperature Detectors offering high accuracy and stability for precise temperature measurement in industrial processes.
Protective thermowell assemblies designed to shield temperature sensors from harsh process media, pressure and corrosion.
First in India with indigenous technology. MI cables in Simplex/Duplex/Triplex versions from 1mm to 20mm sheath diameter.
Microprocessor-based digital temperature gauges with 2-year battery life. First-in-India innovation overcoming all conventional filled system problems.
First-in-India DIGIBAR digital pressure gauge with ±0.075%FS accuracy. Selectable units, microprocessor-based at the cost of mechanical gauges.
Dry Block Temperature Calibration Baths and Fluidised Bed Temperature Baths for precise on-site and laboratory calibration.
Complete range of pressure calibration instruments for accurate calibration of pressure gauges, transmitters and switches in the field and laboratory.
Smart 4–20mA and HART-compatible transmitters for accurate measurement and remote transmission of temperature and pressure signals.
Multi-function process calibrators for sourcing, simulating and measuring mA, voltage, thermocouple and RTD signals in a single instrument.
First-in-India Digital Manometer with fixed and selectable range at an affordable cost. Precision measurement for differential, gauge and absolute pressure.
Precision RPM calibration test rigs for accurate calibration and testing of tachometers, speed sensors and related rotational measurement instruments.
We at Altop Industries Ltd. are committed to manufacture, market, Quality products & Services to Satisfy Customer's needs and Strive to meet their enhanced needs.
Our aim is to establish and continually improve Quality Management System in accordance with ISO 9001:2015, throughout the organization, by motivating and imparting identified training needs.
"To establish ourselves and grow as credible, efficient, effective, dependable Products and reliable Services to the Industries."
Altop Industries aspires to align completely with Customer requirements and deliver Products & Services suitable to the needs.
State-of-the-art manufacturing and testing facilities to deliver precision instruments that meet the most demanding specifications.
State-of-the-art manufacturing facility with self-developed technology and indigenous machinery for complete in-house production.
National Accreditation Board accredited calibration laboratory providing traceable calibration certificates for all instrument types.
Complete custom engineering capability — from design to manufacture of special instruments tailored to unique process requirements.
Successfully executed overseas turnkey project of Ammonia Plant instrumentation for Greendome Petrochemical at Sharjah, UAE.
Complete installation services for any instrumentation and control portion — from bid to commissioning for new and existing plants.
Unique indigenous technology for Mineral Insulated Cable from 1mm to 20mm diameter in Simplex, Duplex and Triplex configurations.
Instruments, equipment and manpower available on hire basis. Performance Guarantee Testing (PG Testing) as per required standards.
Pioneering innovations including first indigenous Dry Block Calibration Baths, MI Cables, Digital Temperature & Pressure Gauges.
Altop Industries Ltd is an authorized representative and distributor for AMETEK — world leaders in electronic instruments and electromechanical devices. We offer the complete AMETEK range for temperature, pressure and process measurement.
AMETEK precision temperature calibrators for laboratory and field use with NIST traceable accuracy.
AMETEK deadweight testers and pressure calibrators — the gold standard for pressure calibration worldwide.
Multifunction process calibrators for mA, voltage, thermocouple and RTD signal generation and measurement.
High-precision liquid bath calibrators for accurate temperature calibration across a wide temperature range.
Our NABL (National Accreditation Board for Testing and Calibration Laboratories) accredited calibration laboratory provides accurate, reliable and traceable calibration services for a comprehensive range of temperature and pressure instruments.
Calibration of thermocouples, RTDs, temperature gauges and transmitters with NABL traceable certificates across a wide temperature range.
Calibration of pressure gauges, transmitters and switches using NABL traceable deadweight testers and reference standards.
All calibrations are issued with NABL accredited certificates traceable to National and International standards, accepted worldwide.
On-site calibration services available at customer premises for instruments that cannot be easily removed from process lines.
National Accreditation Board Certified
Specialized marine-grade temperature, pressure and calibration instruments designed to withstand harsh marine environments, meeting international maritime standards.
Corrosion-resistant temperature sensors with marine-grade materials for engine rooms, boiler rooms and deck applications on vessels.
Glycerine-filled and dry-type pressure gauges in SS316 housings rated for marine environments. Available in all standard ranges.
Mineral Insulated Cables with stainless steel sheathing for marine applications requiring high reliability in salt spray environments.
IP67/IP68 rated temperature and pressure transmitters designed for onboard automation and monitoring systems on ships and offshore platforms.
Mobile calibration services for vessels at port — ensuring all instruments are within calibration and compliant with classification society requirements.
Specialized Instrumentation for Maritime Applications
Beyond manufacturing, Altop Industries provides end-to-end instrumentation services for new projects and existing plants across India and globally.
Complete installation services for instrumentation and control portions of new or existing plants. From bid to commissioning — we manage it all with a dedicated Project Manager.
PG Testing of instruments, equipment or systems as per required standards. Comprehensive performance verification with detailed test reports and certification.
Instruments, equipment and qualified manpower available on hire basis for short or long-term projects. Cost-effective solution for temporary measurement requirements.
NABL accredited calibration for temperature and pressure instruments. On-site and in-lab calibration with internationally traceable certificates accepted worldwide.
Complete preliminary concepts, cost estimates, equipment selection, instrumentation location, space constraint evaluation, design and construction scheduling for complex projects.
Successfully executed Ammonia Plant instrumentation for Greendome Petrochemical at Sharjah, UAE. Proven capability to deliver complex overseas instrumentation projects.
Altop Industries Ltd. has successfully executed an overseas Turnkey Project of Ammonia Plant instrumentation for Greendome Petrochemical at Sharjah, UAE — demonstrating our capability to deliver world-class instrumentation projects globally.
Our instruments and services are trusted by leading process industries across India and internationally.
Refineries, pipelines, LNG plants and upstream exploration operations.
Cracking units, distillation columns and chemical process plants.
Thermal, nuclear and renewable power plants and substations.
GMP-compliant instruments for sterile manufacturing and process control.
Blast furnaces, rolling mills and high-temperature metallurgical processes.
Ammonia plants, urea plants and fertilizer processing facilities.
Ships, offshore platforms and coastal process installations.
Kilns, grinding mills, quarry operations and bulk material handling.
Altop Industries instruments are trusted by hundreds of leading companies across India and internationally.
Serving 500+ clients across India and international markets since 1981. Replace placeholder names with actual client logos.
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