Note on particle counters: This page is for general information only. Techmaster does not calibrate particle counters of any make or model, and particle counters are not on our ANAB ISO/IEC 17025 scope (certificate AC-1736). Techmaster only performs calibration services that are covered by our scope. For particle counter calibration, please contact your instrument’s manufacturer or its authorized service provider, and follow any service requirements they specify. If you prefer, send us your request and, with your permission, we will forward it to the manufacturer. See what is on our accredited scope.
San Antonio Calibration Lab
San Antonio, TX 78222
What is this lab accredited for?
Everything below is on Techmaster’s ANAB ISO/IEC 17025 scope (certificate AC-1736) at this laboratory. Exact ranges and uncertainties are on our published accreditation scope.
| Discipline | Accredited here |
|---|---|
| Torque | To 1,000 lbf·ft, the highest range across Techmaster labs |
| High voltage | DC and AC to 150 kV, the highest range across Techmaster labs |
| High resistance | 10 PΩ tera-ohmmeter; only at San Antonio |
| Pressure | −12 psi to 15,000 psi, barometric to 39 psia |
| High current | AC high current to 1,500 A (San Antonio and Orlando); clamp-on to 1,025 A |
| DC and low-frequency electrical | DC voltage to 1.1 kV, current to 1,000 A via shunts |
| Oscilloscopes | To 600 MHz, plus wave generator |
| Gauge blocks and ring gages | Gauge blocks to 12 in, ring gages to 6.4 in |
RF and microwave, environmental chambers, vibration and 1-D/2-D dimensional calibration are not on the San Antonio scope. They are accredited at our California and Florida labs; ask us how to route those instruments. Particle counters are not on the ANAB scope at any Techmaster lab, and Techmaster does not calibrate them. Patient simulators and optical radiometers are not on the ANAB scope at any Techmaster lab either; they receive NIST-traceable certificates, not ISO/IEC 17025 accredited ones.
How do I send instruments to this location?
Customers across Texas ship instruments to the San Antonio lab. Contact us to ask about pickup, drop-off at the lab or on-site calibration. Send a model list or photos of asset tags with your quote request so the work is scheduled before the equipment arrives.
Looking for Rothe calibration? Rothe San Antonio Calibration became part of Techmaster Electronics in July 2025. Read the acquisition announcement.
For statewide coverage, see Calibration services in Texas.
Frequently asked questions
Where is Techmaster's San Antonio calibration lab?
Is this the former Rothe San Antonio Calibration?
What are the San Antonio lab's hours?
Does the San Antonio lab calibrate RF and microwave equipment?
Other Techmaster locations
See all calibration lab locations and our accredited calibration services.