Sensors » Pololu QTR Reflectance Sensors » High-Density (HD) QTR Arrays »
QTR-HD-02A Reflectance Sensor Array: 2-Channel, 4mm Pitch, Analog Output
| pitch × sensors | size (mm) | output | max current | optimal range | |
|---|---|---|---|---|---|
| LED | board | ||||
| 4 mm × 2 | 10.2 × 20.0 | analog | 30 mA | 32 mA | 5 mm | 
This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features the traditional-style QTR sensors without lenses.
Alternatives available with variations in these parameter(s): sensor type sensor count sensor pitch output type Select variant…
| Description | Specs (15) | Pictures (7) | Resources (6) | FAQs (0) | On the blog (1) | Distributors (3) | 
|---|
The following is a list of official distributors who have purchased this product in the last year. You can also order directly from this website (we ship worldwide) or visit our full list of distributors.
Germany
- 
 Eckstein GmbHEckstein Komponente Team
 
 Brauhausberg 12a
 38678 Clausthal-Zellerfeld
 Germany
 Tel: (0049) 5323 9828757
 eckstein-shop.de/pololu
 View distributor profile...
Jordan
- 
MIKROELECTRONKing Rania St.
 
 Khalifa Building 3rd floor, Office 308
 Amman
 Jordan
 Tel: +96265344772
 Mobile: +962790062196
 mikroelectron.com
 View distributor profile...
Mexico
- 
 SandoroboticsAvenida Morelos 540 (A unos pasos del Metro Mixihuca linea 9)
 
 Magdalena Mixihuca, V. Carranza
 CDMX, D.F. 15850
 Mexico
 Mobile: (044)5529044012
 Tel: (55)57683208
 sandorobotics.com
 View distributor profile...




















