Water tank with probes
Tank with stainless probes: common at the bottom, then LOW, MID and HIGH · water between probes is about 30 kΩ · level now 50 %

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: Practice tank with stainless probes
Pins
- Common (bottom)
- LOW probe
- MID probe
- HIGH probe
Ratings and limits
| Water resistance | ≈ 30 kΩ between probes |
|---|---|
| Probes | COM, LOW, MID, HIGH |
How to use it
Click the tank to set the level. Use AC or a pulsed supply on real probes: DC slowly corrodes them by electrolysis.
Lessons and builds that use it
- Water-level indicator (build)