3-AA Battery Holder vs QTR-MD-02A Reflectance Sensor Array: 2-Channel, 8mm Pitch, Analog Output
3-AA Battery Holder and QTR-MD-02A Reflectance Sensor Array: 2-Channel, 8mm Pitch, Analog Output are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, 3-AA Battery Holder is €1.04 cheaper ($2.24).
| Criterion |  3-AA Battery Holder |  QTR-MD-02A Reflectance Sensor Array: 2-Channel, 8mm Pitch, Analog Output |
|---|---|---|
| Price | $2.24cheapest | $3.44 |
| Seller | Pololu | Pololu |
| Availability | In stock | In stock |
| Rating | — | — |
| Current | — | 2 A |
| Voltage max. | — | 5.5 V |
| Voltage min. | — | 2.9 V |
| Weight | 11.34 g | 0.7 g |
| Cell type | AA | — |
| Cells | 3 | — |
| Lead length | 6 in | — |
| Led current | — | 30 mA |
| Maximum current draw | — | 32 mA |
| Maximum range | — | 30 mm |
| Optimal range | — | 5 mm |
| Other pcb markings | — | 0J11359 |
| Output type | — | A (analog voltages) |
| Pcb dev codes | — | irs23a |
| Peak wavelength | — | 940 nm |
| Sensor count | — | 2 |
| Sensor pitch | — | 8 mm |
| Sensor type | — | QTR |
| Size | 58 × 48 × 15 mm | 13.0 × 20.0 × 2.5 mm |
| View at seller ↗ | View at seller ↗ |
Specifications are extracted automatically from seller data — an empty cell means the seller does not publish that value, not that the product lacks it.
Robotitem does not test products. This comparison reports seller-published data only, and ranking never takes affiliate commission into account.