Portable Radio Alarms

sentinel case

For Instant Response and Notification

For pricing and specifications, please see our catalog.

The Sentinel PC2200 Series portable radio alarm is ideal for intrusion alarms, warnings, indicators, prompting or monitoring. Utilizing voice messages, this method is FAST, transmitting directly to your personnel via their radio transceivers without the need for decoders or other hardware. COST EFFECTIVE, it interfaces with your existing radio system. Completely electronic user recorded voice messages make this unit highly RELIABLE and recommended for use in law enforcement, security, industrial, safety or emergency services. COMPACT, this unit is completely self-contained and designed for portable use.

VERSATILE and easy to install, you can choose from our comprehensive selection of sensors and accessories or any other compatible sensor to tailor your system for your specific needs. Built-in accessories include invisible light beam and wireless alarm sensor receiver. We also supply a variety of external wireless and hard wire sensors. This unit is capable of three zone operation. It can send a unique message for each zone input as well as a unit identity message. Also, The sentinel can be configured with a variety of tone signaling options for private line, automatic number identification or other modes of operation.

OPERATION The Sentinel is a type of repeater which relays alarm sensor indications via radio voice messages. These messages are monitored on common land mobile frequencies. The Sentinel uses electronic circuitry to sense the input sensors for contact closure, to activate the microcomputer controller. The controller turns on the transmitter to send the appropriate messages and keeps track of all timing sequences. When sensors are installed or connected, setting the ready switch to the ready position allows the unit to be activated. Putting the ready switch to the exit delay position momentarily, puts the unit in the Entrance/Exit delay mode which allows the user one minute before the sensors will be enabled. This feature allows the user to enter or leave the premise without activating the unit. Also, the fourth channel of the wireless receiver is used as an Entrance/ Exit delay activator. Using a hand held sensor-transmitter such as a panic button. This allows the user to enter a protected zone without activating the Sentinel.

The Sentinel is designed to use very little power to prolong battery life. Only the input and battery low detection sense circuits and the wireless receiver are powered until an active input condition exists. When activated, the Sentinel transmits a message sequence, corresponding to the input sensor/s activated and the unit identity. Messages are transmitted up to four times, depending on the Repeat Count switch setting, at 20 second intervals. If the input sensor switch is opened then closed again, the sequence is restarted. When the active condition ceases, the unit will return to ready. Also, if the battery voltage drops too low the battery low light comes on and the Sentinel will transmit a battery low and unit identity message to let you know it is time to recharge the battery.

VOICE MESSAGES, USER RECORDED The PC2200 Series uses an electronic voice recorder and play-back unit. Messages are variable in length, with a combined total time of 16 seconds The user can record up to four messages, with each message corresponding to one of these input functions:

  1. Zone 1, wireless receiver channel 1 or input jack one.
  2. Zone 2, wireless receiver channel 2 or input jack two.
  3. Zone 3, wireless receiver channel 3, or invisible light beam.
  4. Unit identity message.

Messages are recorded with the built-in microphone, a message record/play button; a message select switch and a mode switch. The mode switch has four modes; RECORD-allows user to record messages, PLAY-plays back recorded messages, TEST-sends voice message out internal speaker and OPERATE-sends voice messages over the radio. Unit retains memory of recorded messages as long as battery or A.C. voltage is connected.

Five permanently recorded messages are also use in the Sentinel operation. Two messages are broadcast over the radio indicating "Sentinel radio alarm" at the beginning of each transmission and battery status when battery is low with "battery is low" message. Three other messages, "exit entrance delay" and "ready" are sent over the speaker to indicate exit time and when exit delay time has ended. Also, a sensor status message is transmitted when a sensor battery is low.

SHORT RANGE WIRELESS SENSORS Types of wireless sensors available include, but are not limited to: Passive infrared with a 75 foot sensing range; Money bait clip for use in cash registers; Panic button for manual operation; door/window sensor plus wiring to any other type of switch contact sensor. See Catalog.

The short range radio receives alarm signals from remote wireless sensors and activates the Sentinel which transmits the specified message over the LMR radio frequency. Most having a maximum range of approximately 100 to 1000 feet, the wireless system eliminates the need for hard wiring a room for monitoring and speeds up installation. More than one wireless sensor transmitter may be used per zone allowing you to monitor more than one location at a time. A total of 32 sensors can be used with the Sentinel Alarm system.