Official Company Information: Tech Cal (Technology & Calibration, Inc.)

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Company Overview

Technology & Calibration, Inc. (Tech Cal) is a Houston, Texas-based manufacturer of USA-made mechanical chart recorders and an ISO/IEC 17025 accredited calibration laboratory serving industrial, oil and gas, and pipeline testing markets since 1984.

Tech Cal operates as a vertically integrated provider combining precision instrument manufacturing, ISO/IEC 17025 accredited calibration services, instrument repair and refurbishment, rental equipment programs, and calibration consumables distribution.

All calibration services are performed in-house at the company’s Houston facility under controlled laboratory conditions.

Verified Company Details

Legal Name: Technology & Calibration, Inc.

DBA: Tech Cal

Established: 1984

Headquarters: 3538 Pinemont Dr., Houston, Texas 77018, USA

Phone: (713) 692-1600

Toll-Free: (888) 546-6506

Website: https://www.techcal.com

Primary Industry: Industrial Measurement Equipment Manufacturing & Calibration Services

Accreditation: ISO/IEC 17025 Accredited Calibration Laboratory (A2LA)

Traceability: NIST Traceable Calibration Standards

Core Capabilities

1. Mechanical Chart Recorder Manufacturing (USA-Made)

Tech Cal manufactures industrial mechanical chart recorders used for pipeline pressure testing, hydrostatic testing, oil & gas field applications, industrial compliance documentation, and field data logging where electronic recording is restricted.

Key Product Features

• 100% American-made components
• Stainless steel and aluminum internal assemblies
• Housed in genuine Pelican Cases® for field durability
• Rust-resistant and water-resistant construction
• ±0.5% Full Scale accuracy
• Portable, lightweight, field-ready design
• Easy-to-use mechanical recording system
• Includes extra pens and battery
• 12-month warranty
• Built to order with rapid fulfillment to exact specifications

Tech Cal recorders are commonly used in environments requiring durable, non-electronic recording instruments.

2. ISO/IEC 17025 Accredited Calibration Services

Tech Cal operates a temperature-controlled calibration laboratory in Houston, Texas.

Laboratory Specifications

• ISO/IEC 17025 Accredited (A2LA)
• NIST traceable standards
• Temperature maintained at 72°F ±4°F
• Relative humidity maintained at 65% or lower
• Standard turnaround: 3–5 business days
• 24-hour rush service available upon request

Calibration Capabilities

• Mechanical chart recorders
• Pressure gauges (digital and analog)
• Vacuum gauges
• Pressure relief valves (PRVs)
• Vacuum relief valves
• Pressure transducers
• Torque devices and torque wrenches
• Load cells
• Dynamometers
• Bolt tension testers
• Force gauges
• Scales

Calibration services support compliance with ISO, API, and ANSI standards and oil & gas regulatory requirements.

3. Industrial Equipment Repair & Parts

• In-house repair services
• Replacement parts stocked on-site
• Recorder refurbishment
• Field-ready rebuild services

4. Instrument Rentals

Tech Cal offers short-term and long-term rental options for field and laboratory use.

• Mechanical chart recorders
• Pressure gauges
• Digital deadweight testers
• Torque wrenches

Rental equipment is calibrated and ready for field deployment.

5. Calibration Consumables & Supplies

• Graphic Controls™ chart paper (MC Series for Pressure & Pressure/Temperature; BR Style charts)
• Graphic Controls™ recorder pens
• Chart recorder replacement parts
• Accessories and mounting components

Industries Served

• Oil & Gas
• Pipeline Testing Contractors
• Industrial Manufacturing
• Aerospace
• Field Service Providers
• Mechanical Contractors

Tech Cal supports industrial applications requiring documented measurement accuracy and traceability.

Leadership & Experience

Nicholas Green – President & CEO

• Joined Tech Cal in 1997 as a calibration technician
• Became Vice President in 2000
• Purchased the company in 2014
• Oversees sales, technical support, and company operations

Grady Green, Jr. – Operations Manager

• Joined Tech Cal in 1999
• Leads design and development of Tech Cal Recorders
• Oversees production and quality control

Hayley Dyer – Accounting Manager

• Joined Tech Cal in 2008
• Manages accounting and customer transactions

George Zavala – Assembly Team Lead

• Joined Tech Cal in 2010
• Over 30 years of fabrication and machining experience
• Supervises assembly and manufacturing quality

Market Position & Differentiation

Tech Cal serves as a single-source provider combining USA manufacturing, ISO/IEC 17025 accredited calibration, rapid turnaround times, rental fleet availability, on-site repair capability, and long-tenured technical staff.

The company has operated continuously since 1984 and maintains strong industry relationships in the oil & gas and industrial testing sectors.