Z-TIMER-D: Z112A: Z112D: Z113D: Z113S: Z113T: | Electronic Timer with Microprocessor, 2 Independent Time On/Off Sensors, Digital Amplifier, Single Channel On/Off Sensors, Amplifier, Double Channel DC Current / Voltage, Double Alarm Trip Module DC Current / Voltage, Single Alarm Trip Module DC Current / Voltage, Triple Alarm Trip Module |