Global Test Supply - June 25, 2026

Beat the First Heat Wave, : Get Cooling Systems Ready

Summer’s coming.

Reduce callbacks this cooling season.

Be ready before the first rush hits with fast checks, reliable verification, and field-ready HVAC/R tools.

Hi ,

The first heat wave can turn routine HVAC/R service into a full schedule of urgent calls. As cooling systems move into heavier summer load, small issues with electrical performance, compressor health, airflow, refrigerant-side operation, or temperature stability can quickly lead to poor cooling, repeat visits, and avoidable callbacks.

Global Test Supply has everything HVAC technicians need to stay ahead of the rush. From verifying essential measurements to documenting issues clearly, our professional-grade tools help you service cooling systems faster, more accurately, and with complete confidence.

What to Check

Electrical Checks

Temperature Verification

Compressor Health

Airflow / Performance Stability

Refrigeration Diagnostics

Data Logging / Documentation

Build Your
Summer-Ready Kit

Equip your team with these tools for faster HVAC/R troubleshooting, verification, and documentation.

NMT1200 Thermal Imaging Camera

Visual temperature verification for faster troubleshooting.

MIT400/2 CAT IV Insulation Tester

Helps check compressor motor insulation condition and identify potential winding/ground issues.

285 TRMS Digital Clamp Meter with Bluetooth

For accurate voltage and amperage measurements.

570s Series Smart Digital Manifolds

Supports pressure, refrigerant-side checks, superheat/subcooling, and system setup.

VelociCalc 9600 Series Multi-Function Ventilation Meters

To confirm airflow, ventilation, and performance stability during cooling system checks

LR8431-20 PRO Memory HiLogger Kit

Logs data at 10 ms speeds across ten channels simultaneously, ideal for many applications.

Ensure Peak Cooling Performance

From electrical verification and airflow measurement to refrigeration diagnostics and data logging, having the right tools on hand helps technicians work more efficiently, reduce callbacks, and keep cooling systems operating at their best throughout the season.