I have purchased 17 units of this item (170 sensors) and we use them for GPS tracking and temperature monitoring. We have about 10% temperature sensor failures. The problem is that most errors occur after installation, so I have to stop the trucks again and replace the sensor again. We agree with the price related failure rate, but the problem is that this refinement increases our operating costs and decreases customer satisfaction. We would like to ask your advice to carry out any type of pre-test to ensure a long service life and also to obtain from you the necessary treatment for the installation (best practices) to share with our technicians. We would appreciate your cooperation.BR, NAVSAT Costa Rica
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