Weksler Glass Thermometer

What Weksler Glass Thermometer does

Weksler Glass Thermometer Corporation (WGTC), founded in 1920 by Harry Weksler in St. Louis, Missouri and now headquartered in Kennesaw, Georgia, manufactures industrial thermometers and pressure gauges. The company operates today as a brand within ESP (Engineering and Specialty Products), with assembly operations distributed across the USA, China, Taiwan, India, and Mexico, and is led by the founder's great-grandson, representing the third generation of family leadership. WGTC's product portfolio spans liquid-in-glass industrial thermometers (including its patented adjustable-angle industrial thermometer, invented in 1950), bimetal thermometers, vapor dial thermometers, scientific thermometers, thermowells, and a broad line of pressure gauges (contractor, utility, glycerin-filled, process, low-pressure, general service, specialty), along with diaphragm seals, gauge accessories, P/T plugs/tridicators, and lead-free potable water instruments. The company has more recently extended into connected instrumentation via its Cirrus Wireless Thermometer System, a LoRa/WiFi-based remote temperature monitoring platform hosted on AWS that supports up to 60 thermometers per gateway with mobile app alerting.

Revenue is generated primarily through one-time sale of instruments and accessories, distributed via a global network of manufacturer representatives, distributors, and OEM white-label arrangements. Pricing is quote-based, with options including custom dial printing, laser engraving, NIST-traceable certification, and assembly of diaphragm seals. WGTC serves a diversified set of verticals — commercial HVAC (primary), hydronics, sanitary/pharmaceutical, wastewater treatment, plumbing, process industries, and OEM branding customers — leveraging over $14M of finished goods inventory for immediate shipment and positioning itself as having one of the largest product selections and fastest lead times in the industry. The company's brand is described as the gold standard for liquid-in-glass thermometers in commercial HVAC, with flagship products such as the EA14 contractor gauge specified by engineers for over 40 years.

Name

Weksler Glass Thermometer

Legal name

Weksler Glass Thermometer Corp.

Website

https://wekslerglass.com

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

1–10 employees

Short description

Weksler Glass Thermometer Corporation, founded in 1920 and operating under ESP, manufactures industrial thermometers, bimetal thermometers, pressure gauges, diaphragm seals, and a wireless remote temperature monitoring system for HVAC, hydronics, sanitary, wastewater, plumbing, process, and OEM customers worldwide.

Ownership category

akta.pro rank

Product category

Industrial Measurement Instruments

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Air Quality & Filtration Equipment (IAQ) (IMAHAKAI)

akta.pro secondary industry

Temperature data loggers & probes (in-transit and storage) (TLAEALAA)

Keywords

• Industrial thermometers
• Pressure gauges
• Bimetal thermometers
• Diaphragm seals
• Wireless temperature monitoring

Headquarters

HQ city

Boca Raton

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Instrument Sales: WGTC generates revenue through the sale of industrial thermometers, pressure gauges, diaphragm seals, and related accessories. Products range from standard models to custom-configured instruments with various certifications and options.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

Weksler Glass Thermometer manufactures and sells industrial thermometers (industrial/light-powered/air duct, bimetal, vapor dial, scientific & commercial, 5" scale, submarine), pressure gauges (contractor, utility, glycerin-filled, low pressure, process, general service, specialty), thermowells, diaphragm seals and gauge accessories, P/T plugs and tridicators, a Lead Free product line, and the Cirrus Wireless Thermometer System for remote HVAC monitoring. Products are assembled across facilities in the USA, China, Taiwan, India, and Mexico, with over $14M of finished goods in stock for immediate shipment and customization options including laser engraving, dial printing, and OEM branding.

Product overview

Weksler Glass Thermometer Corporation (WGTC) offers a comprehensive portfolio of industrial pressure and temperature instruments. The product lineup centers on two core categories: Thermometers & Thermowells (including Industrial Thermometers in light-powered and air duct variants, Bimetal Thermometers, Vapor Dial Thermometers, Scientific & Commercial Thermometers, 5" Scale Thermometers in economy and submarine configurations, and Thermowells for adjust-angle and bimetal thermometers) and Gauges (spanning Contractor Gauges like the EA14, Utility Gauges, Glycerin Filled Gauges, Low Pressure Gauges, Process Gauges with 316SS wetted parts, General Service Gauges, and Specialty Gauges for ammonia and water testing). Supporting products include Diaphragm Seals and Gauge Accessories (needle valves, gauge cocks, siphons, snubbers), the Cirrus Wireless Thermometer System for remote HVAC monitoring, P/T Plugs & Tridicators for boiler monitoring, and a dedicated Lead Free product line for potable water applications. The company operates as a brand under ESP and is renowned for inventing the adjustable angle industrial thermometer in 1950, with a legacy spanning over 75 years in the HVAC industry.

Differentiator

Problem solved

Functional benefit

Brands

• Cirrus Wireless Thermometer System: A wireless temperature monitoring system for HVAC applications, allowing users to monitor temperature readings remotely via a mobile app from anywhere in the world. The system can connect up to 60 thermometers to a gateway and uses LoRa and WiFi technology.

Products and services

• Industrial Thermometers Premium industrial thermometers including the patented adjustable-angle AS5 model, with light-powered and air duct variants; features black molded ABS or die-cast aluminum cases, dual Fahrenheit/Celsius scales, and adjustable angle mounting for HVAC applications.
• Bimetal Thermometers Bimetal stem thermometers in dial sizes from 3" to 5" with adjustable angle or back/bottom mounting, featuring stainless steel cases and glass or plastic lenses, for industrial and HVAC temperature measurement.
• Vapor Dial Thermometers Vapor pressure thermometers available in remote and adjustable angle configurations with glass-reinforced plastic or stainless steel cases for industrial temperature measurement.
• Scientific & Commercial Thermometers Pocket thermometers, laboratory thermometers, and sling psychrometers for scientific and commercial temperature measurement applications.
• 5" Scale Thermometers (Super Economy) Economical 5-inch dual scale (Fahrenheit and Celsius) thermometers with gray ABS cases and blue spirit (kerosene) fill fluid, designed for general-purpose temperature indication.
• 5" Scale Thermometers (Submarine) Submarine-style thermometers with lower back mount configuration, gray ABS cases, and glass lenses, suited to piping and confined-space installations.
• Thermowells Protective wells for temperature sensors available in brass, carbon steel, 304 stainless steel, and 316 stainless steel, with various stem lengths and process connections.
• Contractor Gauges Pressure gauges designed for contractors, including the EA14 model specified by engineers for over 40 years, with stainless steel cases and copper alloy wetted parts.
• Utility Gauges Economical pressure gauges in 1.5" to 3.5" dial sizes with steel or brass cases and lower mount or center back mount configurations for general utility pressure measurement.
• Glycerin Filled Gauges Vibration-dampened pressure gauges filled with glycerin for pulsation resistance, available in brass and stainless steel with various dial sizes for harsh hydraulic and hydronic service.
• Low Pressure Gauges Gauges designed for low pressure applications measuring inches of water column, available with copper alloy or stainless steel wetted parts for sensitive low-pressure systems.
• Process Gauges High-accuracy 4.5" process pressure gauges with 316 stainless steel wetted parts, available in various case materials and pressure ranges up to 20,000 psi for harsh industrial process environments.
• General Service Gauges Versatile pressure gauges for general industrial service with glass-reinforced plastic or steel cases, delivering 1% accuracy per ASME B40.1 Grade 1A.
• Specialty Gauges Specialized pressure gauges including ammonia refrigerant gauges, water test gauges, and hose connection gauges for specific plumbing and process applications.
• Diaphragm Seals and Gauge Accessories Protective diaphragm seals that isolate measuring instruments from corrosive or high-temperature media, plus gauge cocks, needle valves, siphons, and snubbers as supporting gauge accessories.
• Cirrus Wireless Thermometer System Wireless temperature monitoring system enabling remote HVAC monitoring via LoRa and WiFi connectivity, supporting up to 60 thermometers per gateway with cloud data storage, mobile app alerts, and push notifications.
• P/T Plugs & Tridicators Pressure/temperature test plugs and tridicators (combination pressure and temperature gauges) for boiler monitoring and spot-check temperature and pressure measurement.
• Lead Free Products Thermometers and gauges compliant with lead-free requirements for potable water applications, including PBF (lead-free) certified models.

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Amazon Web ServicessupportingTechnology or IntegrationAWS hosts the cloud data infrastructure for the Cirrus Wireless Thermometer System, enabling temperature data storage and mobile app access worldwide.

Scale indicators5 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• NOSHOK: US-based manufacturer of pressure and temperature measurement instruments, including pressure gauges, thermometers, and diaphragm seals serving process, HVAC, and OEM markets — directly overlapping Weksler's core catalog.
• Ashcroft Inc. Major US manufacturer of pressure and temperature instrumentation for process and HVAC markets. Direct competitor to Weksler in industrial thermometers and pressure gauges, with a broader product portfolio and larger installed base.
• WIKA Instrument Corporation: Global manufacturer of pressure, temperature, level, and flow measurement instruments. Directly comparable to Weksler in industrial thermometers, pressure gauges, and diaphragm seals serving HVAC and process industries.
• Palmer Wahl Instrumentation Group: US manufacturer of industrial and precision thermometers, infrared temperature measurement, and calibration instruments. Comparable heritage brand with adjacent digital/IR product extensions.
• REOTEMP Instrument Corporation: Manufacturer of industrial thermometers (bimetal, gas-filled, RTD) and pressure gauges for process, sanitary, and HVAC applications. Closely comparable to Weksler in mid-market industrial thermometry.
• Dwyer Instruments: Manufacturer of measurement and control instruments including pressure gauges, bimetal thermometers, and manometers. Comparable product portfolio to Weksler with broader digital sensor offerings.
• Winters Instruments: Canadian manufacturer of pressure and temperature instruments for industrial, HVAC, and process markets. Comparable to Weksler in product mix and OEM/distributor go-to-market motion.
• Trerice (H.O. Trerice Co.): Long-established US manufacturer of pressure gauges, industrial thermometers, and accessories for HVAC and process applications. Overlaps with Weksler's heritage-product positioning and customer base.

Broad incumbents

• Omega Engineering: Broad-line industrial measurement and process control supplier offering thermometers, pressure gauges, RTDs, thermocouples, and data acquisition across thousands of SKUs. Larger, more diversified catalog competitor to Weksler's narrower instrument range.

Emerging players

• UEi (Universal Enterprises): Manufacturer of test and measurement instruments including digital thermometers, manometers, and HVAC diagnostic tools. Emerging player overlapping with Weksler in HVAC instrumentation, with a digital-first product set.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/weksler-glass-thermometer-corp

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Weksler Glass Thermometer