Teensy
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$27.99
Oiyagai 5pcs LM393 Chip Motor Measuring Comparator Speed Sensor Module Slot Type IR Optocoupler for MCU Arduino
★★★★★
$27.99
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About this item
- Product Name : Speed Sensor Module;Working Voltage : DC 3.3-5V
- Main Chip : LM393;PCB Board Size : 33 x 14mm/ 1.3" x 0.55" (L*W)
- Slotted Width : 5mm/ 0.2";Hole Size : 3mm/ 0.12"
- Material : Electric Part;Net Weight : 4g
- Package Content : 5 x Speed Sensor Module
Product description
Widely used in motor speed detection, pulse counter, etc. Features: 1, the use of imported groove coupler sensor, slot width 5mm. 2, output status indicator lamp output high, output low lights. 3, block, output high; no shelter, output low. 4, the comparator output signal clean, good waveform, driving ability, than 15mA. 5, the working voltage of 3.3V-5V 6, the output format: digital switching output (0 and 1) 7, A fixed bolt holes for easy installation 8, small PCB board size: 3.2cm x 1.4cm/1.3 x 0.6inch 9, using a wide voltage comparator LM393 Wiring instructions: 1, VCC positive power supply 3.3-5V 2, GND power supply is negative 3, DO TTL switching signal output 4, AO this module does not work Package includes: 5 x Speed Measuring Sensor LM393
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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