Waterun-498 Wrist Strap Tester
→ Can be used anywhere to quickly and easily check grounding systems, such as wrist straps and grounding wire.
→ Touching the mat with your hand when grounding wire is connected.
→ The green “Good” indicator will be on and buzzing when you have a safe grounding system.
| Indication | Standard Impedance | Sound |
| Low (red) | R ＜ 800KΩ | No |
| Good (green) | 800KΩ ≤ R ≤ 9MΩ | Yes |
| High (red) | R ＞ 9MΩ | No |
