The Warmbier 7220.890 Two Sided Probe is two ESD testing probes in one: a 5lb disk probe and a concentric ring probe.

The Warmbier 7220.890 Two Sided Probe is used with a surface resistance meter to take volume resistance, point-to-point resistance, surface resistance and resistance-to-ground measurements. The 890 probes unique two sized design combines a concentric ring probe and a cylindrical disk probe into one easy to use testing device. The probe is made with conductive plastic containing silver particles. The 890 Probe Kit includes a stainless steel plate, insulative plate, blue guard cord, and a conductive carrying case.

• Two-sided probe combines a concentric ring and disk probe
• Made with conductive plastic containing silver particles
• Take resistance-to-ground, point-to-point and volume resistance measurements
• Include stainless steel plate, insulative plate, and a conductive carrying