Application first
Tell us what you measure: refrigerant pressure, vacuum, leaks, thermal patterns, or service training kits.
US-based distributor for field-ready test and measurement instruments
UTSA Distribution helps contractors, maintenance teams, schools, and resellers choose practical testing equipment for HVAC service, refrigeration work, thermal inspection, and future electrical / solar workflows.

Selected for practical HVAC service, refrigeration diagnostics, and field troubleshooting workflows.

Evacuation verification for HVAC service, refrigeration repair, and commissioning work.

Compact pressure checks for field diagnostics, service notes, and refrigerant workflows.

Refrigerant pressure diagnostics, superheat/subcooling checks, and HVAC service workflow support.

High-sensitivity refrigerant leak detection for service teams and troubleshooting calls.
Browse the current UTSA catalog by industry workflow. These links go directly to live Shopify product collections, so new published products can be reviewed without changing the homepage layout.
See every currently published test and measurement product.
View all HVACHVAC ToolsManifolds, vacuum gauges, leak detectors, pressure tools, and HVAC diagnostics.
View HVAC ElectricalElectrical TestersMultimeters, clamp meters, voltage checks, and electrical troubleshooting tools.
View electrical ThermalThermal CamerasThermal imagers for HVAC, electrical, facility, and industrial inspection.
View thermal MaintenanceIndustrial MaintenanceProcess calibration, plant troubleshooting, inspection, and preventive maintenance.
View maintenance
HVAC field instrument for refrigeration service, pressure checks, leak detection, evacuation, or diagnostics.

HVAC field instrument for refrigeration service, pressure checks, leak detection, evacuation, or diagnostics.

HVAC field instrument for refrigeration service, pressure checks, leak detection, evacuation, or diagnostics.

HVAC field instrument for refrigeration service, pressure checks, leak detection, evacuation, or diagnostics.

HVAC field instrument for refrigeration service, pressure checks, leak detection, evacuation, or diagnostics.

Electrical measurement tool for voltage, current, resistance, continuity, clamp measurement, and troubleshooting.

Electrical measurement tool for voltage, current, resistance, continuity, clamp measurement, and troubleshooting.

Process calibration, inspection, troubleshooting, and preventive maintenance equipment for field teams.

Process calibration, inspection, troubleshooting, and preventive maintenance equipment for field teams.

Process calibration, inspection, troubleshooting, and preventive maintenance equipment for field teams.
Customers usually search by the job they need to solve. UTSA is organized around workflows first, then tool categories and model selection.
Refrigeration service, evacuation, leak detection, pressure checks, and HVAC diagnostics.
Explore HVAC product lines 02Electronic & Electrical TestersElectrical measurement, clamp current, voltage detection, continuity, and troubleshooting tools.
Explore electrical product lines 03Industrial Maintenance ToolsPreventive maintenance, plant troubleshooting, environmental checks, and inspection instruments.
Explore maintenance product lines 04Thermal CamerasThermal imaging for HVAC, electrical, facility, inspection, and maintenance workflows.
Explore thermal imaging tools 05Solar TestersPV commissioning, solar installation checks, string testing, and field verification tools.
Explore solar testing toolsA product-showroom workflow for customers who need product fit, quantity pricing, lead-time confirmation, or application support before ordering.
Tell us what you measure: refrigerant pressure, vacuum, leaks, thermal patterns, or service training kits.
We compare range, accuracy, accessories, sensor type, resolution, and workflow needs.
Request one unit, a team kit, reseller quantity, or school/training lab configuration.
Get product links, application notes, and technical guide references for the buying decision.
The first live industry hub: refrigeration service, evacuation, leak detection, pressure diagnostics, and thermal inspection.

Selected for HVAC service, refrigeration diagnostics, and field troubleshooting.

Evacuation verification for HVAC service and refrigerant circuit work.

Pressure measurement for service checks, diagnostics, and refrigerant workflows.

Pressure diagnostics, refrigerant selection, superheat/subcooling, and service records.

Higher sensitivity leak detection for refrigeration and HVAC service teams.
Electrical meters and testers for voltage, current, continuity, resistance, clamp measurement, and general troubleshooting workflows.

Useful for voltage, current, resistance, continuity checks, and basic electrical diagnostics.

Useful for voltage, current, resistance, continuity checks, and basic electrical diagnostics.
Clear application fit matters more than a long product list. UTSA keeps the catalog focused and expands by validated industry workflows.
UTSA connects product selection with field education. TesterPros publishes HVAC, electrical, solar, maintenance, and tool-use guides for technicians who want to understand the measurement before buying the instrument.
For contractors, maintenance teams, schools, and resellers that need product selection support, quantity pricing, or thermal imaging quotes.