PololuPololu· Sensors

QTRX-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output, Low Current

Name: QTRX-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output, Low Current
Brand: Pololu
Price: 3.75 USD
Availability: InStock

Manufacturer part no. 4401

$3.75≈ 3.30 €

Price summary

Listed by Pololu at €3.30. Delivered to France, including shipping, VAT and any customs duty, it comes to about €33.96. Prices last checked on 2026-09-29.

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

In stock — 339 units

origin USA
RoHS3

View at seller ↗

Estimated landed cost

Landed cost breakdown
Item	€3.30
Shipping	€25.00
VAT (20%)	€5.66
Total delivered	€33.96

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	Saving
≥ 1	$3.75
≥ 5	$3.45	−8 %
≥ 25	$3.17	−15 %
≥ 100	$2.92	−22 %

Datasheets & documents

Specifications (automatically extracted)

Electrical

Current	1 A
Voltage max.	5.5 V
Voltage min.	2.9 V

Mechanical

Weight

0.25 g

Other characteristics

Led current	3.5 mA
Maximum current draw	5 mA
Maximum range	30 mm
Optimal range	10 mm
Peak wavelength	940 nm
Sensor count	1
Other pcb markings	0J11377
Output type	A (analog voltages)
Pcb dev codes	irs21j
Sensor type	QTRX

Description

This IR LED/phototransistor pair 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 a high-performance, low-current QTRX sensor with lenses.