Pololu Logo

Pololu - Australia

QTR-HD-25RC Reflectance Sensor Array: 25-Channel, 4mm Pitch, RC Output

Code: SKU-005318

pitch × sensors size (mm) output max current optimal range LED board 4 mm × 25 101.0 × 16.5 RC (digital) 30 mA 405 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 38.95

Special Order

Shipping from $4.90

+18 more from our supplier in 7-10 days

QTR-HD-31A Reflectance Sensor Array: 31-Channel, 4mm Pitch, Analog Output

Code: SKU-004924

pitch × sensors size (mm) output max current optimal range LED board 4 mm × 31 125.0 × 16.5 analogue 30 mA 495 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 44.95

Special Order

Shipping from $4.90

+30 more from our supplier in 7-10 days

QTR-HD-31RC Reflectance Sensor Array: 31-Channel, 4mm Pitch, RC Output

Code: SKU-004923

pitch × sensors size (mm) output max current optimal range LED board 4 mm × 31 125.0 × 16.5 RC (digital) 30 mA 495 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 44.95

Special Order

Shipping from $4.90

+35 more from our supplier in 7-10 days

QTR-L-1A Reflectance Sensor (2-Pack)

Code: SKU-003239

The QTR-L-1A reflectance sensor incorporates a right-angle infrared LED and a right-angle phototransistor in an inexpensive, tiny 0.35″ × 0.3″ module that can be mounted almost anywhere and is great for edge detection and line following.

$ 6.95

Special Order

Shipping from $9.90

+278 more from our supplier in 7-10 days

QTR-L-1RC Reflectance Sensor (2-Pack)

Code: SKU-003240

The QTR-L-1RC reflectance sensor incorporates a right-angle infrared LED and a right-angle phototransistor in an inexpensive, tiny 0.35″ × 0.3″ module that can be mounted almost anywhere and is great for edge detection and line following.

$ 6.95

Special Order

Shipping from $9.90

+283 more from our supplier in 7-10 days

QTR-MD-01A Reflectance Sensor: 1-Channel, 7.5mm Wide, Analog Output

Code: SKU-004912

sensors size (mm) output max current optimal range LED board 1 7.5 × 20.0 analogue 30 mA 32 mA 5 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 3.55

Special Order

Shipping from $4.90

+66 more from our supplier in 7-10 days

QTR-MD-01A-S Reflectance Sensor: 1-Channel, 8mm Wide, Analog Output, Side-Entry Connector

Code: SKU-010857

sensors size (mm) output max current optimal range connec­tor LED board 1 8.1 × 15.2 analogue 30 mA 32 mA 5 mm side-entry This sensor uses an IR LED and a phototransistor to measure the light reflected from nearby surfaces.

$ 4.95

Special Order

Shipping from $4.90

+60 more from our supplier in 7-10 days

QTR-MD-01RC Reflectance Sensor: 1-Channel, 7.5mm Wide, RC Output

Code: SKU-004910

sensors size (mm) output max current optimal range LED board 1 7.5 × 20.0 RC (digital) 30 mA 32 mA 5 mm This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection).

$ 3.55

Special Order

Shipping from $4.90

+250 more from our supplier in 7-10 days

QTR-MD-01RC-S Reflectance Sensor: 1-Channel, 8mm Wide, RC Output, Side-Entry Connector

Code: SKU-010856

sensors size (mm) output max current optimal range connec­tor LED board 1 8.1 × 15.2 RC (digital) 30 mA 32 mA 5 mm side-entry This sensor uses an IR LED and a phototransistor to measure the light reflected from nearby surfaces.

$ 4.95

Special Order

Shipping from $4.90

+80 more from our supplier in 7-10 days

QTR-MD-02A Reflectance Sensor Array: 2-Channel, 8mm Pitch, Analog Output

Code: SKU-004985

pitch × sensors size (mm) output max current optimal range LED board 8 mm × 2 13.0 × 20.0 analogue 30 mA 32 mA 5 mm This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection).

$ 4.45

Special Order

Shipping from $4.90

+127 more from our supplier in 7-10 days