Using ZapSense is simple!
In just a few seconds, you’ll know if your fence is strong enough to work.
Step 1: Activate
Place your thumb on the marked circle and squeeze. ZapSense powers up instantly and is ready to test.
Step 2: Measure
Hold ZapSense about 2 cm from the wire.
It safely detects every pulse without direct contact – no risk of shock.
Step 3: Read the result
Each pulse makes the flash symbol blink green, and the LEDs show the strength of your fence.
- Red (0–2 LEDs) = Too weak (<2000V)
- Green (3–7 LEDs) = Strong enough (2000V+)
Simple, visual, and instant.
Understanding the voltage levels
ZapSense shows the strength of your fence using 7 LEDs.
Here’s what each level means – and when you need to take action.
0 LEDs = below 500V (red)
Too weak – your fence is not working at all.
1 LED = 500–1000V (red)
Not enough to keep animals in or wild animals out.
2 LEDs = 1000–2000V (red)
Still too weak – risk of escapes or intrusions.
3 LEDs = 2000–4000V (green)
Minimum level for a functional fence.
4 LEDs = 4000–6000V (green)
Strong and reliable for most animals.
5 LEDs = 6000–8000V (green)
Very good strength, suitable for horses, cattle, sheep.
6 LEDs = 8000–10000V (green)
High protection, also effective against wild animals.
7 LEDs = above 10000V (green)
Maximum strength – excellent safety margin.
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“Finally, a practical, small, and useful tool for animal keeping. With ZapSense I can quickly check my electric fences.”
— Christiane, Germany