Best Personal Breathalyzers Under $100 (2026)
We ranked products under $100 by a combined value score using sensor technology, portability/features (Bluetooth/keychain), user ratings, and the availability of hygienic accessories like replaceable mouthpieces
This roundup covers personal breathalyzers and accessories priced under $100, focused on devices and mouthpiece packs that balance accuracy, portability, and value. Selections prioritize measurable features such as sensor type, Bluetooth or keychain convenience, and user ratings to highlight practical options for personal alcohol testing
Top Picks
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1
BACtrack mouthpieces (100 ct) for S80/Trace/Element/Scout/S75
Replacement mouthpieces for BACtrack breathalyzers. FDA-compliant food-grade plastic; individually wrapped for clean tests. Customers note reliable performance and easy attachment/removal
- multiple-model compatibility
- hygienic individually wrapped pieces
- FDA-compliant food-grade material
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2
BACtrack Trace Professional Breathalyzer
Professional-grade breathalyzer with hospital-grade accuracy and simple one-button operation. Convenient, compact device with consistent readings; customers find it accurate and easy to use
- platinum-based Xtend Fuel Cell Sensor
- police-grade accuracy
- portable, pocket-friendly
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3
BACtrack C6 Keychain Breathalyzer
Professional-grade breathalyzer with BluFire sensor and ZeroLine tech. Features optional wireless smartphone connectivity and HealthKit integration. Customers note easy use and portable size
- patented BluFire fuel cell sensor
- ZeroLine time-to-zero estimation
- compact keychain form with app connectivity
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4
BACtrack Keychain Breathalyzer (Blue) – Ultra-Portable Pocket Alcohol Tester
Compact keychain breathalyzer with one-button operation for quick BAC estimates. Fold-out mouthpiece promotes accurate breath capture. Customers praise portability and ease of use, with mixed notes on accuracy
- one-button operation
- fold-out mouthpiece
- ultra-compact keychain design
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5
BACtrack C8 Breathalyzer with wireless connectivity
Professional-grade breathalyzer using BluFire Fuel Cell Sensor. ZeroLine estimates when BAC returns to 0.00%. Compact, portable, and compatible with iPhone and Android devices. Customers note ease of use and portability with mixed accuracy feedback
- professional-grade sensor
- ZeroLine time-to-0.00% estimation
- optional wireless connectivity
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6
BACtrack Keychain Breathalyzer (Green) – Ultra-Portable Alcohol Tester
Compact keychain breathalyzer with one-button operation for quick BAC estimates. Fold-out mouthpiece promotes accurate breath capture. Customers note easy carryability and small size, but report mixed accuracy and durability concerns
- one-button operation
- ultra-compact keychain design
- fold-out mouthpiece for better breath capture
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7
BACtrack Scout Breathalyzer – Professional-Grade Accuracy
Portable breathalyzer with pro-grade Xtend Fuel Cell Sensor for personal and professional use. One-button operation for easy testing and quick results. Customers note easy use and compact size, but mixed accuracy and build reliability concerns
- Xtend Fuel Cell Sensor
- one-button operation
- compact, portable design
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8
BACtrack Element Breathalyzer
Portable breathalyzer with professional-grade Xtend fuel cell sensor for personal and professional use. One-button operation powered by two AAA batteries. Provides fast breath alcohol testing with hospital-grade technology
- Xtend fuel cell sensor
- one-button operation
- hospital-grade accuracy technology
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9
BACtrack Keychain Breathalyzer – Black (2 Pack)
Portable keychain breathalyzer with one-button operation for quick BAC estimates. Fold-out mouthpiece helps ensure only breath is measured. Customer feedback shows mixed experiences with functionality and durability
- one-button operation
- fold-out mouthpiece
- ultra-compact keychain design
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10
BACtrack Keychain Breathalyzer - Purple (2 Pack) | Ultra-Portable
Portable keychain breathalyzer with one-button use and fold-out mouthpiece for easy breath sample. Provides quick BAC estimates. Customer feedback is mixed on functionality and durability
- ultra-compact keychain design
- easy two-pack for portability
- fold-out mouthpiece for accurate breath capture