Coda is open for business as usual. Some of our staff are working remotely and some are in the office.
Our office is open between 8.30am and 3.30pm.
Also, due to extra precautions we are taking with goods-in, lead times may be a few days longer than normal.

Specialist Test Products > Kelvin Test Probes > PK4 Series >

A range of concentric test probes intended specifically for making 4 to 6 pole (Kelvin) tests on PCBs, bus bars, equipment chassis and screw heads. A wide range of tip styles is available including sharp inner and outer probes for contact problem areas and concaved outer designed for contacting pan-head screws. This range makes low resistance measurements very easy. Contact us regarding our high current/heavy duty range.

Test Probe Specification

Full travel (outer)
7.0mm
Recommended travel
4.0mm
Spring force at F.T.
460g
- Except PK4QB-3.5, PK4M2J
250g
Maximum current (outer)
10 Amp
Drill hole size for probe
4.20mm

Receptacle Specification

Optional receptacle part no: RK4
Drill hole size for receptacle: 4.80mm

See receptacles at bottom of page

For pricing, availability or to place an order
click on a part no. below

Tip Style

SERRATED/SPEAR

SERRATED/SPEAR

PK4HB

Tip Style

CROWN/SERRATED

CROWN/SERRATED

PK4QH

Tip Style

CROWN/SPEAR

CROWN/SPEAR

PK4QB-3.5

Tip Style

CROWN/SPEAR

CROWN/SPEAR

PK4QB-5.0

Tip Style

SERRATED/SERRATED

SERRATED/SERRATED

PK4HH

Tip Style

M2 PAN HEAD SCREWS

M2 PAN HEAD SCREWS

PK4M2J

Receptacle

RECEPTACLE

RECEPTACLE

RK4