Brand Unbranded/Generic
Type NE555 Pulse Generator DIY Kit

Check the listing for details. NE555 Adjustable Pulse Frequency Signal Generator Duty Cycle Module Square Wave. Condition: New. Listed at 1.77 USD. Main Chip: NE555. 1x NE555 Board. The output frequency range is selectable: LF file: 1Hz ~ 50Hz,IF file: 50Hz ~ 1kHz, High-frequency file: 1KHz ~ 10kHz, HF file: 10kHz ~ 200kHz. The output frequency is adjustable.

$1.42
$1.77