Code: CMR-U11

AVONGARD - Crack Movement Recorder USB

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Continuous Monitoring (Data logging) 

The Avongard Crack Movement Recorder is a weatherproof, high precision data logger that allows continuous monitoring of movement in crack width and temperature. It can be used in a wide range of environments, both indoors and outdoors and is ideal for use in areas difficult to access regularly.

The USB Crack Movement Recorder provides continuous recording of both movement in crack width and ambient temperature. The unit is configurable to measure at a pre-defined interval of 1 minute to 91 hours. The built in data logger stores readings for later download onto a PC.

The unit is powered by a user-replaceable battery, which should last between six months and five years, depending on how the unit is configured and frequency of downloads. The measurements are stored in internal memory and are downloaded to a Windows PC using a USB cable (supplied).

Monitoring in two dimensions using two units (normally horizontal and vertical) is explained in the manual.

The unit is supplied with fixings, a USB cable and a link to download the latest version of the user guide and software.


Movement Sensor
Range:80mm (extension cables are available)
Resolution: 0.003mm
Linearity:0.07% full scale

Temperature Sensor
Range:-20C - +80C
Resolution: 1C

Data Logger     
Capacity:31926 Readings (15963 readings with redundancy)

Power Supply: CR2023 Battery

Working Temperature:    -10C - +60C (or according to installed battery)
Cable Tension:10N
Protection Rating:IP65

System Requirements
The software requires Windows XP or later.