Test the tamper switch to see if it is working correctly (actuating freely without getting stuck) then ensure the case is on correctly and nothing is in the way.
When troubleshooting, you may want to place your 24/7 professional monitoring account on Test Mode during troubleshooting to avoid any false dispatches.
You can do this by calling monitoring operators directly at 855-348-0367 or from the Test My System tab in the System Manager section of your Surety account.
If this does not resolve the issue, delete the sensor, re-add, then test for functionality both via tamper and normal sensor activation (open/Close) Any change?
If necessary, you can change the sensors Group to group 25 safety sensor so the sensor does not generate an alarm signal.