Replacement tape assembly for Geotech ET water level meters — 100–300 ft / 30–100 m reels. A cut, kinked, or shorted tape doesn't mean a new meter: swap the tape assembly and the reel, frame, and control electronics carry on.

Order the same material, length, and units as your original tape. Check the markings on your existing tape before ordering — it's marked in feet or metres, never both.

Important: 5/8" vs 3/8"

These are packaged differently, and it changes what arrives:

• 5/8" — tape only. The 5/8" probe is field serviceable, so it's sold separately and you reuse or rebuild yours. Need a new one? See the probe assembly.
• 3/8" — tape plus probe. The 3/8" probe is not field replaceable, so it ships permanently attached to a new tape. That's why 3/8" costs more than 5/8" at the same length — you're getting a probe too.

Which range do I have?

• ET — this listing. 100–300 ft / 30–100 m.
• ETL — 500–1000 ft / 150–300 m.
• ETL deep — 1500–5000 ft / 450–925 m rewind reels.

Polyethylene-coated steel tape, laser-marked, PFAS-free. Fits the Geotech ET / ETL Water Level Meter.

Browse all Geotech WLM parts & accessories, or contact us if you're unsure which tape your meter takes — tell us the serial number and we'll look it up.