PololuPololu· Sensors

QTRX-MD-07A Reflectance Sensor Array: 7-Channel, 8mm Pitch, Analog Output, Low Current

Name: QTRX-MD-07A Reflectance Sensor Array: 7-Channel, 8mm Pitch, Analog Output, Low Current
Brand: Pololu

Manufacturer part no. 4447

$14.44≈ 12.72 €

Price summary

Sold by 2 suppliers, from €12.72 to €15.89. The lowest listed price is Pololu at €12.72. Once shipping, VAT and customs duty are added, the cheapest delivered is RobotShop at about €23.79 — Pololu lands at about €45.26. Prices last checked on 2026-10-01.

Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.

In stock — 52 units

origin USA
RoHS3

View at seller ↗

Estimated landed cost

Landed cost breakdown
Item	€12.72
Shipping	€25.00
VAT (20%)	€7.54
Total delivered	€45.26

Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.

Volume pricing

Qty	Unit price

2 offers for this product

Offers from the different sellers, sorted by price
Seller	Availability	Price	Seller link
PololuBest delivered cost	In stock	$14.44€15.26 incl. VAT	Visit ↗
RobotShop	Special order	€15.89€15.89 incl. VAT	Visit ↗

Prices compared incl. VAT: some sellers list ex-VAT trade prices, others VAT-inclusive retail prices. The badge marks the best estimated delivered cost, shipping and duties included — not always the first row.

Specifications (automatically extracted)

Electrical

Current	7 A
Voltage max.	5.5 V
Voltage min.	2.9 V

Mechanical

Weight

2.7 g

Other characteristics

Led current	3.5 mA
Maximum current draw	17 mA
Maximum range	40 mm
Optimal range	10 mm
Peak wavelength	940 nm
Sensor count	7
Sensor pitch	8 mm
Other pcb markings	0J11387
Output type	A (analog voltages)
Pcb dev codes	irs33j

Description

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 40 mm. This version features high-performance, low-current QTRX sensors with lenses.