- Total Cost Breakdown
- Virtual vs. Physical Proctoring Fees
- What Your Purchase Actually Includes
- Retest Windows and the 90-Day Clock
- Remote Testing Setup Costs
- Why the Eight Domains Affect Your Budget
- Budgeting Your Study Time
- Renewal and Recertification Costs
- Hidden Costs Candidates Overlook
- Frequently Asked Questions
- Base Level 1 CAET costs $119 with virtual (GMetrix) proctoring or $109 with an approved physical proctor.
- One purchase covers up to three attempts: a 24-hour wait before attempt two, two weeks before attempt three.
- All attempts must be completed within 90 days of purchase, or you forfeit remaining tries.
- Renewal every three years requires 18 Continuing Education Hours, not a full retest, unless you skip the CEHs.
Total Cost Breakdown
The Certified Aircraft Electronics Technician (CAET) credential, issued through the Aircraft Electronics Association (AEA) and delivered by the Unmanned Safety Institute (USI), is priced as a single exam fee rather than a bundled training-plus-test package. There's no mandatory coursework you're forced to buy, and no prerequisite certifications or work-hour minimums standing between you and the exam. That keeps the sticker price simple, but it also means every dollar you spend needs to go toward actual exam readiness - which is where a solid CAET Study Guide 2026: How to Pass on Your First Attempt earns its keep.
The core cost driver is your proctoring choice. AEA has partnered with GMetrix for virtual, remote-proctored testing, and also allows approved physical (in-person) proctors at qualifying test locations. Those two paths carry different fees, and the difference matters more than it might first appear once you factor in convenience, equipment requirements, and scheduling flexibility.
Virtual vs. Physical Proctoring Fees
Base Level 1 CAET pricing breaks down as follows:
- $119 for virtual proctoring through GMetrix, taken from your own computer.
- $109 for testing with an AEA-approved physical proctor at an in-person location.
The $10 gap is small in absolute terms, but it reflects a real trade-off. Virtual proctoring costs a bit more because it requires you to supply and configure your own testing environment - webcam, microphone, and proctoring software all have to meet spec. Physical proctoring shifts that logistical burden to an approved site, which is reflected in the lower fee but requires you to travel and schedule around that location's availability.
| Factor | Virtual (GMetrix) | Physical Proctor |
|---|---|---|
| Exam Fee | $119 | $109 |
| Location | Your own space | Approved test site |
| Equipment Needed | Webcam, mic, compatible computer | Provided by proctor site |
| Scheduling Flexibility | Higher | Dependent on site hours |
| Device Restrictions | No Chromebooks or tablets | Handled by proctor's equipment |
What Your Purchase Actually Includes
Unlike many certification exams that charge separately for each retake, a single CAET purchase includes up to three attempts. That structure meaningfully changes how you should think about cost: instead of budgeting for a pass/fail gamble, you're budgeting for a testing cycle with built-in room for error.
Here's how the attempt structure actually works:
- Attempt 1 - taken whenever you're ready after purchase.
- Attempt 2 - available after a mandatory 24-hour wait if you don't pass on the first try.
- Attempt 3 - available after a two-week wait following attempt two.
The exam itself is 100 multiple-choice questions administered in 90 minutes, with a 70% passing score. If you're wondering whether that threshold is generous or tight relative to the question format, the breakdown in CAET Passing Score 2026: Exactly What You Need to Pass walks through exactly how many correct answers that requires.
Key Takeaway
Because three attempts are bundled into one fee, a single purchase is often the most cost-efficient path - but only if you complete all attempts within the 90-day window described below.
Retest Windows and the 90-Day Clock
The three-attempt allowance comes with a hard deadline: all testing must be completed within 90 days of purchase. This detail is easy to overlook, but it has direct cost implications. If you buy the exam, fail attempt one, and then get busy with work or travel and let more than 90 days pass, you lose access to your remaining attempts and have to purchase again at full price.
Practically, this means the smartest financial move is to not purchase until you're close to exam-ready. Someone who buys the exam the day they start studying is racing an invisible clock; someone who buys after working through the domain material and a full practice run is spending that 90 days on retests only if genuinely needed, not on cramming. For a candid look at how much lead time to plan for, see How Hard Is the CAET Exam? Complete Difficulty Guide 2026.
Remote Testing Setup Costs
If you choose virtual proctoring, there are equipment requirements that can carry indirect costs if your current setup doesn't meet them. Remote testing requires:
- Government-issued photo identification
- A functioning webcam
- A microphone
- A room scan before the exam begins
- Compatible proctoring software installed and running properly
One restriction worth flagging early: Chromebooks and tablets are not supported. If your only computer is one of these, you'll need to borrow, rent, or buy a compatible laptop or desktop before test day - an indirect cost that has nothing to do with the exam fee but can still derail your budget and schedule if discovered too late. A non-phone calculator is permitted during the exam, so if you plan to use one for any electrical-theory calculations, make sure it's a standalone device rather than a phone app.
Why the Eight Domains Affect Your Budget
The exam fee is fixed regardless of which topics give you trouble, but your effective cost per attempt goes up dramatically if you fail and have to wait out a retest period - or worse, buy a second exam because you blew past the 90-day window. The real lever you control is preparation quality across the eight official domains:
Domain 1: Maintenance Procedures & Regulatory Requirements
Covers the regulatory and procedural framework technicians must follow.
- Know documentation and compliance basics cold - this domain rewards familiarity over memorization tricks.
Domain 2: Basic Electrical Theory & Systems
Foundational electrical concepts underpin questions throughout the rest of the exam.
- Weak fundamentals here compound into errors on CNS and databus questions later.
Domain 3: CNS - Communication, Navigation & Surveillance Systems
Tests understanding of the systems that keep aircraft connected and positioned correctly.
- Expect scenario-based questions tying components to real operational roles.
Domain 5: Digital Databus Systems
A domain many candidates underestimate because it's less intuitive than physical wiring work.
- Budget extra review time if your background is mechanical rather than digital.
For the complete rundown of all eight domains - including Flight Instrument & Pitot-Static Systems, Aircraft Wiring, Hardware & Installation, Tools, Test Equipment & Measurement Techniques, and Safety, Housekeeping & Best Practices - see CAET Exam Domains 2026: Complete Guide to All 8 Content Areas. Understanding how these domains are weighted and questioned is the single biggest factor in whether you pay for one attempt or three.
Budgeting Your Study Time
Money isn't the only resource on the line - time is too, and the two are connected through the 90-day attempt window. A short, deliberate study schedule that maps directly onto the domain list keeps you from wasting either.
Foundations
- Review Domain 2 (Basic Electrical Theory) and Domain 1 (Maintenance Procedures & Regulatory Requirements) since later domains build on both.
Systems Focus
- Work through Domain 3 (CNS), Domain 4 (Flight Instrument & Pitot-Static Systems), and Domain 5 (Digital Databus Systems).
Hands-On Topics
- Cover Domain 6 (Aircraft Wiring, Hardware & Installation) and Domain 7 (Tools, Test Equipment & Measurement Techniques) with an emphasis on applied scenarios.
Consolidation
- Finish Domain 8 (Safety, Housekeeping & Best Practices), then run full-length timed practice sets across all eight domains before purchasing your exam attempt.
Spacing your review this way - rather than cramming everything the week before - reduces the odds of needing a second or third attempt, which is really the main cost-control strategy available to you. Timed practice sets on our CAET practice test platform are one of the most direct ways to simulate the 90-minute, 100-question format before you spend real money on the official exam.
Renewal and Recertification Costs
The CAET credential is valid for three years. Renewal doesn't automatically mean paying for another full exam attempt. To recertify, candidates need 18 Continuing Education Hours (CEHs) accumulated over the cycle. Two paths satisfy the requirement:
- Earning an approved higher CAET credential, which automatically fulfills the cycle's CEH requirement.
- Completing an online recertification exam, if CEHs weren't accumulated through other approved training.
Because CEH-based renewal doesn't require repurchasing the base exam, the ongoing cost of holding the credential is generally lower than the original testing fee, provided you track and log qualifying education hours throughout the three-year period rather than scrambling near the deadline.
Hidden Costs Candidates Overlook
Beyond the exam fee itself, a few line items tend to catch candidates off guard:
- Repurchasing after the 90-day window closes - the single most avoidable extra cost, and purely a scheduling issue.
- Equipment upgrades for virtual proctoring - if your device is a Chromebook or tablet, you'll need alternate hardware.
- Travel for physical proctoring - the $10 fee savings can be offset by mileage or time off work depending on your location.
- CEH tracking gaps at renewal - falling short on the 18-hour requirement can force reliance on the recertification exam route instead.
None of these are exam fees per se, but they're real budget considerations that a simple "$119 or $109" headline number doesn't capture. If you're still deciding whether the investment - time, fees, and effort combined - makes sense for your career path, Is the CAET Certification Worth It? Complete ROI Analysis 2026 and CAET Salary Guide 2026: Complete Earnings Analysis both dig into that broader picture, while CAET Jobs covers who's actually hiring for this credential.
Frequently Asked Questions
The base Level 1 CAET exam costs $119 with virtual GMetrix proctoring or $109 with an approved physical proctor. This is the exam fee only; there are no separate prerequisite courses required.
Yes. A single purchase includes up to three attempts, with a 24-hour wait before the second attempt and a two-week wait before the third, all of which must be completed within 90 days of purchase.
If the 90-day window closes before you've used all your attempts, you lose access to the remaining tries and would need to purchase the exam again at full price.
No. Remote virtual proctoring explicitly does not support Chromebooks or tablets. You'll need a compatible computer with a working webcam and microphone, or you can opt for a physical proctor instead.
Renewal occurs every three years and requires 18 Continuing Education Hours, satisfied either through an approved higher CAET credential or an online recertification exam - not necessarily a repeat of the full original exam fee.