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Extensometers




Large range of extensometers for measuring soil compression, settlement and heave of soil and rock in tunnels, shafts and foundations, and ground movement in boreholes.

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Range 20m | 30m | 50m
Accuracy1 ±0.01mm
Resolution 0.01mm
Repeatability2 0.1mm
Operating Temperature -10 to 60°C
Tape Tension 13.5kg
Tension Indicator Optical
Weight Excluding Tape 1kg
Power Off Automatic
Power On Automatic (upon movement of the micrometer)

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Range 300mm
Resolution 0.025%
Accuracy ±0.2%
Operating frequency 1300Hz to 2700Hz
Operating temperature –20 to +80°C
Thermistor type NTC 3k Ω
Thermistor accuracy ±0.5°C
Thermistor resolution1 0.1°C
Ingress protection IP68 to 1000kPa

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Ranges 30mm 50mm 100mm
Resolution 0.025% full scale
Accuracy ±0.2% full scale
Temperature range -20 to +80°C
Thermistor type NTC 3k Ω accuracy ±0.5°C resolution1 0.1°C
Excitation method Pluck or sweep
Material 316 grade Stainless Steel
Ingress protection IP68 to 1700kPa

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Range 30m | 50m | 100m | 150m | 200m
Resolution ±1mm
Repeatability±2mm
Operating temperature range -30 to +80° C
Graduations mm/cm/m
Indicators Audio & visual
Probe material Stainless Steel
Probe diameter 16mm
Tape type Contoured /shaped copper conductors
Tape material Steel / polyethylene coated
Reel material Steel frame / polypropylene hub
Battery life 12 hrs continuous use
Weight 1.7kg | 2.0kg | 3.0kg | 3.8kg | 4.6kg

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