ROTHENBUHLER ENGINEERING

radio transmitters; radio receivers; radio transceivers; radio remote control systems, namely, transmitters, receivers, antennas, external speakers, battery chargers and mounting panels[; timers; well pump controllers; security equipment, namely, remote terminals, master controllers, alarm bells, line modules, interrogators, responders, programmable clocks, keypad controls, switch controls, communications line security modules, tone encoders, voltage and current boosters, annunciator/loop expansion modules, alarm signal processors, polarity reversal monitors, interface boards, ]sound sensors, [entry sensors, heat sensors, status controls, keyswitches, bill traps, namely, cash removal sensors ]and door switches

[engineering services]