TripWire Pull system. Meant for most types of mechanical disc brake handles, plus some others.
Shorter 50cm length.
From Grin:
"Pull style Tripwire universal brake cutoff sensor for mechanical and some hydraulic brake levers
Features include:
- Add-on switch for existing brake levers
- Total Length: 50cm
- Switch logic Normally Open
- Standard 4 pin JST-SM connector
- Dual M/F plug allows for Daisy Chaining
- Manufactured in USA"