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Function: *Electronic limit switchs *Automatic safety reverse *3 minutes light delay *Manual release in case of power failure *Chain drive,low noise *Soft start,soft stop *Backup battery function(optional) *With CE certificate we have ET600,ET800,ET1000 types of garage door opener INPUT VOLTAGE:220/230V AC 50Hz(110v AC 60Hz or 127V AC 60Hz available on request)Single PhaseCurrent Required1AmpTRANSFORMER SPEC:Primary Voltage220/230V ACWORKING CIRCUMSTANCE:TEMPERATURE:-20 55RELATIVE HUMIDITY:<90%MOTOR SPEC:Motor TypePermanent Magnet D.C. MotorVoltage24V DCTorque150 kg.cm at 4 AmpsCONTROL BOARD SPEC:Relay Contact Rating30 Amp / 30V DCRelay Coil Voltage24V DCControl Board Voltage24V DC / 5V DCLight Glove Voltage220v ac 15 watts MaxReceiver specificationReceiver typeFSK AM(built-in) RF Frequency433.92MHzCode Storage Capacity 20Different codesControl distance 50m max.TRANSMITTER SPEC:Carrier Frequency433.92MHzCurrent Consumption50mA(approx)Battery Voltage12 Volts A23 batteryCoding FormatRolling Code(7.381019 Combinations)WEIGHT:14.00KGSMODEL:ET600N ET800N ET000N