STAPERM™ Model Zn-4-UG

Permanent & Portable Reference Electrode for underground, concrete encased and water applications

• Space age porous ceramic.
• Greater surface area than other standard electrodes will allow readings achieved with greater accuracy.
• Electrode will not dry out in arid soils. Moisture content change in soil has no effect on electrode.
• Electrode has an infinite shelf life.
• Minimum Service life 30+ years.

STAPERM™ Model Zn-4-UG

• Size: 2″ dia. x 7″ long high impact ABS plastic tube.
• Packaging: Special non-polarizing backfilled in red cotton bag.
• Overall size: Approx. 6″ dia. x 14″ long.
• Weight: Approx. 15 lbs.
• Special sizes: Upon request.
• Reinforcing Rods: 1/4″ x 3″ PVC at electrode end.
• Lead Wire: Standard 30′ of #14 RHH-RHW.
• Design Life: 30 years.
• Stability: +/- 5 millivolts with 3.0 microamp load.
• Temperature Range: 32°F to 150