Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11am Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
The MURS Alert Probe Sensor is a long-range wireless driveway alarm that will detect vehicles only. It combines the features of the vehicle sensor drive alert with our MURS Alert technology. The MURS Probe is very reliable and will not give false signals from large animals or other sources. When the MURS Alert detects a vehicle, it will send an alert signal to either the M538-BS or M538-HTtransceivers. The alert signal will be in spoken English and twice repeats the phrase "Alert Zone One," "Alert Zone Two," "Alert Zone Three," or "Alert Zone Four." The four alert messages are easily selected at the transmitter, so that up to four different zones can be monitored simultaneously.