RS-232 LED Link Signal Tester - DB-9 Male to DB-9 Female Connections for Seri...

• [ Instant Diagnostics ] : Quickly test COM port function & verify RS-232 signal activity with dual-color LED indicators on each pin for easy troubleshooting.
• [ Universal Compatibility ] : Works with any male or female 9-pin RS-232 serial connection, supporting DB-9 Serial configurations.
• [ No External Power Required ] : Operates without external power - ideal for field work, portable kits, or low-resource environments.
• [ Plug & Play Installation ] : No drivers or setup needed - just connect and begin testing immediately.
• [ Quick Status Monitoring ] : LED indicators flash to signal the direction of data flow, allowing easy real-time monitoring.
• [ Broad OS Support ] : Compatible with Win

Shipping

• We offer FREE shipping on all orders!
• We ship within Three business days of payment, usually sooner.
• We use a selection of shipping services such as UPS, FedEx, USPS etc.
• We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed.
• Local pickups and combined shipping options are not provided at this time.

Return

• You can return a product for up to 30 days from the date you purchased it.
• Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.

Customer satisfaction is very important to us.
If you have any problem with your order, please contact us and we will do our best to make you satisfied.

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