Commercial Sensor Calibration in Fullerton for AC PRO Systems

Why precise calibration matters

When sensors drift, your BAS and equipment make the wrong calls. A few degrees off in a discharge or space sensor can trigger short cycling, poor dehumidification, and comfort complaints. CO2 and pressure errors undermine ventilation rates and filtration performance—impacting indoor air quality and energy spend. Precise calibration restores truthful data, stabilizes control loops, reduces run time, and supports California Title 24 sequences and ASHRAE-aligned best practices.
Healthy air, predictable comfort, and lower operating cost start with accurate sensing.

What we calibrate

• Space and return air temperature sensors, RTD/thermistors
• Relative humidity and dew point sensors
• CO2 and IAQ sensors for demand-controlled ventilation
• Static and differential pressure (ducts, filters, cleanrooms)
• Airflow stations and VAV box sensors
• Economizer outdoor air temperature and enthalpy sensors
• Refrigerant pressure transducers and line temperature sensors
• Supply, return, and mixed-air sensors on RTUs, AHUs, and VRF/mini-split controls

Compatible with AC PRO–supplied systems

We service AC PRO–supplied equipment and controls alongside leading commercial platforms. Our engineers align readings to manufacturer specifications and the site’s sequence of operations, then verify performance under load. Our family team is factory-trained by Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier—bringing deep control logic understanding to complex sites without guesswork.

Our calibration process

• Discovery and planning: review issues, sequences, drawings, and trend logs
• Baseline testing: verify wiring, placement, shielding, and signal integrity
• Instrument validation: reference probes and meters checked against standards
• Adjustment and replacement: calibrate or replace out-of-tolerance devices
• Loop verification: confirm setpoints, deadbands, and stability under real load
• Documentation: before/after readings, tolerances, corrective actions, and photos
• Handoff and scheduling: recommend intervals for mission‑critical spaces

Industries and facilities we serve

• Offices, retail, restaurants, and hospitality
• Warehouses, light industrial, and logistics
• Healthcare outpatient and wellness
• Schools, labs, and campus facilities
• Multi‑tenant and mixed‑use properties

Documentation and compliance

You receive a clear report per device with ID, location, pre/post readings, tolerance, correction applied, and recommended replacement when needed. Our documentation supports commissioning, retro‑commissioning, and Title 24 acceptance testing workflows, and we coordinate with your energy manager or commissioning agent to streamline closeout.
Need facility-specific pass/fail thresholds? We’ll align to your OPR and owner standards.

Service area and dispatch

We prioritize Fullerton and greater Orange County, with coverage across Los Angeles County, Ventura County, and Western Riverside County. Expect responsive scheduling, coordinated access planning, and minimal disruption to occupants and operations.

Why #1 AC Guys

• 80+ years of engineering and a fourth‑generation family of HVAC engineers
• Specialists in large, complex commercial controls and multi‑site portfolios
• Factory‑trained by Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• Mission-driven focus on healthy indoor air and energy efficiency
• Calibrations aligned to manufacturer specs and site sequences
• Transparent pricing, presentable crews, and clean job sites

Get a precise quote

Tell us about your Fullerton facility, equipment list, and any comfort or controls issues. We’ll scope calibration by system and sensor type, provide a clear plan, and schedule quickly. Accurate sensors mean smarter automation, healthier air, and lower costs—let’s make your data reliable again.