Satisfy ASHRAE standards
Comply with building codes
Limit your IAQ liability


EBTRON®’s manufacturing process requires all sensors to be independently calibrated prior to shipment using calibration reference standards set by the U.S. national standard at NIST. We first age each Bead-in-Glass thermistor for stability, then calibrate it to an industry-leading temperature measurement accuracy. We assemble two thermistors into a sensor node and calibrate each node produced in our wind tunnels at 16 velocity points.

Our airflow reference standard is calibrated at the NIST air speed wind tunnel and verified by a Laser Doppler Anemometer. The quality of this standard has proven to provide the lowest statistical uncertainty of any other method available within the required operating velocities ranging from 10 fpm to 5000 fpm.

NIST Report of Calibration

– National Institute of Standards and Technology, Gaithersburg, MD. – LDA: reference source for calibration standard used by EBTRON in our calibration lab for 100% of products made.

Listed by Underwriter’s Laboratories in USA and Canada, per standards UL873 or its replacement UL 60730-1; UL 60730-2-9, also subscribed to UL Follow-up Services with random QA audits.


EBTRON is committed to safe and reliable products. By certifying our products in U.S. and Canada, we source components, design, manufacture, and test our products in accordance with Temperature-indicating and -Regulating Equipment standards. This rigorous process follows proven methods and procedures using approved products. It is an additional investment that results in a better product than those without this certification. U.S. and Canada air velocity and temperature devices are tested and LISTED by UL as a complete assembly. Look for the UL Mark on products.

The more significant benefit to the user is EBTRON’s subscription for Follow-up Services, including unannounced and random audits of EBTRON manufacturing facilities and quality control processes to ensure ongoing compliance with UL standards.

UL Certificate of Compliance EBTRON


EBTRON conforms to the EU Directive to protect against electromagnetic disturbance in electronic and communication devices for health, safety, and reliability. We build our products to limit interference from and to other electrical products for safe and reliable operation. Although more than one method is allowed to certify compliance, EBTRON chooses to physically test its products with an independent testing lab to ensure compliance with the requirements of EMC Directives.

CE Declaration of Conformity EBTRON

Certified by EBTRON® to comply with applicable European Commission Directives on EMC and Electrical characteristics, based on third-party laboratory testing.

UKCA Mark, Declaration of Conformity

UKCA Mark certifies that EBTRON’s products meet the relevant regulatory requirements for health, safety, and reliability against electromagnetic disturbance. EBTRON designs to limit interference from and to other electrical products to ensure safe and reliable operation. To ensure compliance with UKCA requirements, EBTRON chooses to have its products verified by an independent lab.


EBTRON maintains a focus on sustainability in manufacturing. RoHS stands for Restriction of Hazardous Substances. It is a European Directive that limits and bans materials in electronic production that have potential harm in manufacturing and also harm to the environment at the end of life. Hazardous substances, including lead (Pb), mercury (Hg), cadmium (Cd), and hexavalent chromium (CrVI), require’s EBTRON to make sourcing and manufacturing process decisions that differentiate us from competitors.

The RoHS Directive aims to prevent the risks posed to human health and the environment related to the management of electronic and electrical waste.

Tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules.


EBTRON products comply with the Federal Communications Commission regulations for radio frequency devices and Canada’s Radio Standard Specifications. Our products are tested to ensure they do not produce unintentional or harmful RF interference and that they operate as intended when exposed to external interference.

FCC Statement of Compliance EBTRON


EBTRON designs products and selects materials with focus on accuracy, performance, long term stability, and reliability under various field conditions. Such examples is using gold plating on our circuit boards and connectors, choosing Bead-in-Glass thermistors, and Kynar® coated wires.

Our are sensing node construction consists of hermetically sealed thermistors inserted into a chemically and heat restive thermoplastic that is filled with waterproof marine epoxy. These nodes can be saturated and submerged in water and still function normally when dry. To further illustrate its robustness, we had sensing nodes independently tested in extreme environments for 30 days. This consisted of, nodes submerged in saltwater and nodes sealed in a container with hyrdrochloric vapor. Not only did the material hold up, the thermistors remained functional.

Saltwater and Acid Test Report

Salt encrusted sensing nodes after evaporation of water from solution.


Ventilation requirements found in the International Mechanical Code (IMC) and Uniform Mechanical Code (UMC) are based on the Ventilation Rate Procedure from ASHRAE 62.1. The ventilation healthcare requirements adopted by state health departments and the Centers for Medicare and Medicaid Services (CMS) are focused similarly on ASHRAE Standard 170, which governs pressure flow directions and air change rates for different room types in hospitals and clinics.

The International Energy Conservation Code (IECC) and ASHRAE 90.1 provide instruction on demand control ventilation for high-occupancy areas. The California Energy Commission (CEC) has required ventilation rates and DCV for many systems. ASHRAE 189.1 is the standard for high performance green buildings and references ASHRAE 62.1 along with outdoor air monitoring for VAV systems.

EBTRON®’s airflow measurement stations can provide monitoring and verification that the code ventilation requirements are attained. Demand control ventilation (DCV) is required by the energy code in certain applications.


IAQ liability has become a major consideration for design and operation of buildings. As building have tighter construction and attempt to reduce energy usage a balance is required to provide quantities of conditioned ventilation air to improve indoor air quality. A large U.S. insurer of liability insurance programs for architects, engineers, and environmental consultants’ estimates that 49% of claims in court and 60% of the claims dollars for MEP engineers is related to the HVAC system; often these claims are a result of poor IAQ.

Methods of reducing risk exposure target how a building is set up and operated. Control uncertainties for intake airflow can range in relative terms from 5 to 25% for direct methods, and from 20 to 150% for indirect methods. EBTRON® provides the best solution for direct measurement and has third party verification for the individual sensors, complete assembly, and for use internationally.

EBTRON®’s airflow measurement stations can provide monitoring and verification that the code ventilation requirements are attained. Demand control ventilation (DCV) is required by the energy code in certain applications.

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