What Is An EVSE Tester?
Whether you're a commercial site operator, an electric vehicle (EV) fleet manager, or maintaining EV infrastructure, one tool is your everyday partner: the EVSE (Electric Vehicle Supply Equipment) tester, also known as an EV charging tester.
An EVSE tester is a portable diagnostic device used to simulate the presence of an EV during inspection, commissioning, and maintenance of an AC and DC charging station’s equipment. These tools evaluate:
- Wiring and installation integrity.
- Control pilot signaling.
- Ground continuity and insulation resistance.
- Output voltage and current delivery.
- Error code diagnosis.
Why are EVSE testers important?
EVSE testers help ensure that charging infrastructure is safe, operational, and compliant with industry standards without the need for an EV on site.
For commercial EV charging operators
In public and commercial networks, a non-functioning station can lead to user dissatisfaction, reduced foot traffic, and even contractual penalties in leased locations.
For commercial operators, EVSE testers:
- Facilitate routine charger health checks without disrupting operations.
- Enable predictive maintenance by identifying early signs of issues.
- Ensure compliance with safety standards like NEC and UL.
- Support maintenance documentation and reporting for multiple sites.
For fleet companies
Fleet operations depend on consistent charging availability. Charging delays or unavailability can disrupt logistics, reduce delivery efficiency, and ultimately impact the bottom line.
For fleet maintenance teams, EVSE testers:
- Reduce downtime by enabling fast diagnostics without an on-site vehicle.
- Fit into existing asset management platforms to help track test history and station performance.
- Improve technician efficiency, making troubleshooting various chargers easier.
For third-party O&M service providers
These technicians are responsible for ensuring chargers are commissioned properly and remain operational across multiple sites and client portfolios.
For third-party O&M service providers, EVSE testers:
- Ensure consistent commissioning procedures across brands and charger types.
- Minimize repeat service calls by getting the job done right the first time.
- Offer cross-brand interoperability when servicing chargers from multiple OEMs.
- Provide standardized test reports to clients, building trust and boosting perceived service value.
EVSE tester checklist
| Feature to consider | Why it matters |
| AC or DC fast charging support | Ensures the tester can be used with both Level 2 AC chargers and Level 3 fast chargers. |
| Intuitive user interface (UI) | Simplifies operations, reduces training time, and helps technicians work quicker. |
| Built-in safety features | Protects users, vehicles, and charging infrastructure during testing and operations. |
| Compatibility with multiple chargers’ manufacturers | Provides flexibility to test equipment from a wide range of brands and models. |
| Documentation and reporting capabilities | Supports compliance requirements and enables communication with clients through reporting. |
What to expect from the future of EVSE testers?
The EVSE industry is growing fast, and with it, the complexity of infrastructure maintenance. Tools like EVSE testers empower technicians to keep stations online, safe, and reliable.
As the EV industry trends toward predictive maintenance, remote diagnostics, and automated reporting, EV testers will continue to scale sustainable EV adoption.
Learn more about EVSE testers
- 6 troubleshooting tests you can perform with the Fluke FEV500. Find out how our solution can help commission, monitor, and maintain DC fast charging stations.
- Streamline your EV charging station workload with the Fluke FEV150. Explore how the FEV150 can ensure that every EV charging station operates at its best.
- EVSE: What is it and how does it work? Understand what EVSE is, its components, how it works, and the different types of EVSE charging systems available.