Digital Products Ltd SBI-145 Lineman Test Set Butt Set DTMF Keypad EBS Centrex

The Digital Products Ltd. SBI-145 is a classic, specialized electronic test set built for telecom technicians servicing electronic business sets (EBS), Centrex, and standard analog loop telephone lines. Encased in a high-visibility yellow impact-resistant shell with an integrated sealed DTMF push-button keypad, this butt set bridges vintage outside-plant equipment and modern line troubleshooting. A practical, reliable tool for telecom collectors, vintage phone switch hobbyists, and field technicians looking for dedicated diagnostic gear.

Key Features & Specifications:

• Hi-vis safety yellow casing built to withstand rugged job-site handling.

• Full 12-key DTMF tone/pulse push-button dial pad with talk/monitor switching.

• Designed for specialized testing of EBS, Centrex, and traditional standard telephone circuits.

• Includes attached heavy-duty field test lead harness with durable alligator clips and belt lanyard hook.

Condition Notes:

• Body shows minor cosmetic surface marks and typical field handling wear; no cracks or loose housing.

• Keypad buttons and switches click firmly and are fully intact.

• Test lead harness and terminal clips are solid and clean with intact rubber boots.

Shipping & Handling: Packed with plenty of protective padding in a sturdy corrugated box with full tracking included.

BUNDLE AND SAVE

Bundle and save! Combine with other telecom test equipment, electronics, and collectibles from our store to receive discounted shipping plus 10% off each additional item. Favorite and follow our eBay page for more puzzles, games, toys, and random finds we think you'll love:

https://www.ebay.com/str/allrmerch