Automotive Security And Alarms > RADIOTRONICS, INC. Radiotronics inc remote pager amp beeper module for k9 alarm Two part sophisticated paging system includes trigger and timing circuitry and matching receiver (the 'beeper'). Alerts when K9 Heat Alarmis activated. Radiotronics inc k9 heat alarm temperature monitor for vehicles Temperature Monitor for Cars and Motorhomes. Radiotronics inc fan system kit only for k9 heat alarm temperature monitor K9 Alarm Fan Kit for use with SM-HA-2010, K9 Heat alarm and or Window Drop Module. Protect pets and working canines with the AceK9 fan system. Radiotronics inc dual window drop module for k9 heat alarm Drops rear windows for ventilation when K9 Heat Alarm is activated. Note: Protect windows with bars to keep uncrated animals from escaping or being stolen.