MODEL SELECTION GUIDE
Breathalyzer Comparison: Find the Right Airsense Model
Use this breathalyzer comparison to review five Airsense alcohol breathalyzer models side by side. Compare fuel cell and semiconductor sensing, pump sampling, displays, Bluetooth, test records and service considerations—without opening five separate product pages.
COMPARE BREATHALYZERS
Side-by-Side Specification Chart
Select the models you want to compare. On mobile, swipe the table horizontally and deselect models to focus on two or three devices.
Showing all five Airsense models.
| Specification | K1 View model → | H3 View model → | H3 Pro View model → | S1 View model → | A5 View model → |
|---|---|---|---|---|---|
| Sensor & Sampling | |||||
| Sensor technology | Fuel cell | Fuel cell | Fuel cell | Fuel cell | Semiconductor |
| Sensor origin | China | UK Dart | UK Dart | UK Dart | — |
| Pump-assisted sampling | No | No | Yes | Yes | No |
| Warm-up time | 0 s specified | 0 s specified | 0 s specified | 0 s specified | 20 s normal* |
| Display & Data | |||||
| Display | 1.2-inch IPS | 1.2-inch IPS | 1.54-inch IPS | 1.54-inch IPS | 1.2-inch IPS |
| Test records | 200 | 2,000 | 2,000 | 10,000 | 500 |
| Connectivity | |||||
| Bluetooth | Not supported | Optional | Optional | Built-in | Built-in |
| APP support | Not supported | Confirm by version | Confirm by version | Confirm by version | Confirm by version |
| Hardware & Service | |||||
| Battery capacity | 250mAh | 300mAh | 350mAh | 650mAh | 1,100mAh |
| Sensor replacement | Not specified | Not specified | Not specified | Replaceable | Not specified |
*A5 can require up to 300 seconds warm-up after more than 30 days unused, per its specification. Bluetooth hardware does not by itself guarantee compatibility with a particular app or integration. Specifications and supplied configurations should be confirmed before ordering.
BUYING GUIDE
Which Breathalyzer Is Right for Your Project?
Rather than calling any single product the “best breathalyzer” for everyone, Airsense recommends matching each device to the target market and intended use.
Want the smallest fuel cell device?
Start with K1. Its compact body, standalone operation and 200 records support a simple personal-use product range.
Explore K1Need a portable fuel cell model?
H3 offers a lightweight format, UK Dart sensor and 2,000 records, with Bluetooth available as an option.
Explore H3Need pump-assisted sampling?
H3 Pro adds a pump in a handheld format. S1 also uses pump sampling, with larger data capacity and a replaceable sensor.
Explore H3 ProNeed a more extensive professional platform?
S1 combines pump-assisted sampling, 10,000 records, built-in Bluetooth and a replaceable fuel cell sensor.
Explore S1Prefer semiconductor sensing?
A5 provides a personal breathalyzer platform with built-in Bluetooth, 500 records and specified warm-up behavior.
Explore A5SENSING TECHNOLOGY
Fuel Cell vs. Semiconductor Breathalyzers
K1, H3, H3 Pro and S1 use electrochemical fuel cell sensing. A5 uses a planar semiconductor sensor. These platforms can differ in selectivity, warm-up requirements, ongoing service needs and the testing experience.
Sensor type alone is not a complete accuracy claim. Sampling, calibration, firmware and test conditions also matter when evaluating a breath alcohol tester.
Read Fuel Cell vs Semiconductor →
OEM CONFIGURATION
Compare Customization Options, Too
Two breathalyzers with similar specifications may still require different software, branding or packaging for a specific market. Discuss OEM requirements as part of your model selection.
Startup Screen Logo
Branded User Manual
Custom System Language
Device Logo Printing
Printed Retail Packaging
These are starting quantities for individual customization services, not a blanket MOQ for all devices. Feasibility and model-specific support are confirmed in the OEM review.
FROM COMPARISON TO SAMPLE
A Simple Way to Narrow Down Your Product Range
Use this comparison as a shortlist tool, then validate the actual product configuration.
Define your audience
Tell us whether you are supplying personal, workplace, fleet or other professional programs.
Identify non-negotiable features
Confirm fuel cell or semiconductor, pump sampling, Bluetooth, data storage and maintenance needs.
Review your market needs
Confirm language, measurement units, documents and relevant regulations for the intended destination.
Evaluate samples and OEM scope
Request available configurations and discuss branding quantities or new-product requirements.