Condition: Refurbished — Seller Refurbished, serviced September 2025. Arc count at time of service: 5849.

This is a Fujikura FSM-21S single-mode and multimode fibre fusion splicer, serviced in September 2025 with a low arc count of 5849. The unit has been refurbished and is supplied complete with a Fujikura CT-50 high-precision cleaver and accessories.

Included in the sale:
• Fujikura FSM-21S SM/MM Arc Fibre Fusion Splicer with clamps (ARC count 5849)
• Fujikura CT-50 High Precision Fibre Cleaver with case and guide plate
• AC Adapter/Charger
• Hard carrying case
• Work tray

The images provided are of the actual item you will receive. Please review them carefully for the cosmetic condition and what is included in the sale.

The Fujikura FSM-21S is a portable, easy-to-use fusion splicer designed for splicing both single-mode (SM) and multimode (MM) optical fibres. It is well suited to FTTx deployment, outside plant work, and general fibre network installation and maintenance tasks. The FSM-21S offers automated alignment and splicing functions, making it accessible for technicians in the field without sacrificing splice quality.

Key specifications:
Fibre Type: Single-mode and multimode
Alignment Method: Local light injection and detection (LID)
Splice Loss (SM): Typical 0.02 dB
Splice Loss (MM): Typical 0.01 dB
Splice Time: Approximately 9 seconds
Heating Time: Approximately 35 seconds
Arc Count Capacity: Up to 5,000 arcs per electrode set
Battery: Rechargeable Li-ion battery pack
Display: Colour LCD monitor
Environmental Rating: Wind and dust resistant
Dimensions: Compact field-portable form factor
Weight: Approximately 1.3 kg (without battery)

The FSM-21S is commonly paired with the Fujikura CT-50 high-precision cleaver, which produces consistent, low-angle cleave ends essential for achieving low-loss fusion splices. Please refer to the Fujikura manufacturer website for full and current specifications.

Product datasheet

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is 'not as specified', you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, the email should accompany the order number, date and reason for return and must be within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than 'not as specified'.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is 'not as specified', in this case we will arrange for the return by way of a prepaid shipping label.