Geotech ET & ETL Portable Water Level Meters

Designed to Provide Reliable and Accurate Measurements of Groundwater Levels. 

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The Geotech ET and ETL Portable Water Level Meters are designed to provide reliable and accurate measurements of groundwater levels. Water level readings are taken at the top of the casing with accuracy to within 1/100 of a foot (3mm).

  • ET has an extremely durable polypropylene storage reel with rugged solid aluminium frame
  • ETL is on a lightweight steel and aluminium storage reel for easy transportation and durability in the field
  • Highly accurate Polyethylene coated steel tape marked in engineering or metric increments
  • Field serviceable 5/8" (1.59cm) probe with stainless steel conductors for durability
  • An optional 3/8" (1cm) non-field replaceable probe is available
  • Adjustable sensitivity to prevent false triggering
  • Audible and visible alarms activated when the probe makes contact with water
  • Easily replaced 9 volt battery
  • Water resistant padded carrying case to protect instrument (optional)
  • Built in reel hanger on ET models and included tape guide for longer tape life.
  • MDPE and Tefzel® coated steel tape available upon request
  • Optional tape weight to help sink the probe into a deeper or crooked well
ET Reel 13" H x 11" W x 7" D
(33cm H x 28cm W x 18cm D)
ETL 500' Reel 14.5" H x 9" W x 11.5" D
(37cm H x 23cm W x 29cm D)
ETL 750⁄1000' Reel 15.75" H x 13" W x 11.5" D
(40cm H x 33cm W x 29cm D)
Probe 5/8" O.D. x 61/8" L (1.59cm O.D. x 15.56cm L)
3/8" O.D. x 6½" L (optional)
(1cm O.D. x 16.5cm L)
Length & Weight
100' (30 m) = 9 lbs. (4 kg)
200' (60 m) = 11 lbs. (5 kg)
300' (100 m) = 14 lbs. (6.3 kg)
500' (150 m) = 20 lbs. (9 kg)
750' (225 m) = 24 lbs. (10.9 kg)
1000' (300 m) = 28 lbs. (12.7 kg)
ET Tape
00th of a foot/100'
(Per Federal Specification GGG-T-106E)
Reel Polypropylene and aluminum (ET)
Powder coated steel and aluminum (ETL)
Tape Polyethylene coated steel
Probe PTFE and stainless steel
Power 9 Volt DC alkaline battery
Alarm Audible and visual
Warranty 1 year
Certifications CE


  • Groundwater monitoring
  • Groundwater level measurements