Getting Jolt sensors back online

1.) Replace battery. Really easy to do. Unscrew the screw. Pop case open with screwdriver replace battery, reinstall. 
2.) If that didn't work, remove battery again. Wait a few minutes. Replace battery assuming it's new. 
3.) If those two didn't work, shake the sensor back and forth 3 times. Aggressively. This will force it to send a new signal to the gateway. 

If the above steps did not work after waiting 15 minutes, create a to-do on Basecamp and assign to your supervisor and OTP Pro to order a replacement sensor.