Test probe with elastic, shatterproof insulating sleeve. The thin stainless steel tip penetrates insulation and oxide layers. 4mm Ø brass socket connection.
Specifications:

1. colour: red
2. rated voltage: 60Vdc
3. volume resistance: 50mohm
4. temperature range: -25°C to +80°C
5. connection type: Ø4mm socket
6. test probe: rigid

hirschmann_catalog.pdf