20 Hour Battery Backup Modification for Dial Out Temperature Guard and Home Guard Monitors by Microtechnologies. This 20 hour internal battery back up can be added to your VM-500-2, VM-500-3 and VM-500-3HT. It will replace the standard 4 hour internal battery. Phone Safe Home Products at 877-358-0900 to purchase this option or we will coordinate the installation after receiving the order.
The Temperature Guard series include units that phone or page when power, temperature, or humidity levels are an issue. Remotely monitor homes or businesses by phoning the monitor.
This item also available as part of the following:
Microtechnologies - Temperature Guard PLUS Remote Monitor and Alarm Remote Temperature Monitor and Thermostat Controller Phone this temperature controller and raise or lower the temperature in your...
Microtechnologies - Home Guard Monitor, Power and Temperature Alert Temperature Monitor with Power Alert Monitor power status 24/7 and know if the temperature in your office or home falls below 45...
Microtechnologies - Temperature Guard: Temperature and Power Alert Remote Monitor for Temperature Pay no monthly monitoring fees yet be notified by phone or pager when temperature limits are exceeded...
Microtechnologies - Temperature Guard with Humidity Sensor: Dial Out Alerts Temperature, Humidity and Power Loss Alarm Protection against high temperatures due to air conditioning failure, low...
![[Home]](/shp2/data/menus/Non-framed_6/SHP_NF_m1_i0.png){kind=small}
