4'' LCD B/W video intercom kit for 1-3 apa

model: OP-D7D9functioncalling,video transmission,door release,scalable systemapplicationoffice,villa,warehouse,apartmenthousingZinc AlloyCompatibilityvideo and audio indoor phoneTemperature-10 70 Degreerelative humidity45% 95%Protection levelIP33Atmospheric pressure86Kpa 108Kpaworking voltage12V 15Vcapacity1-3 unitsdistance from monitor50m(RVV*0.5) 50-100m(RVV*0.75)camera420 TV linescamera featuresIR CCDwiringuse 4P cable contact monitor with indoor phonetalking time100 secondsproduct dimension178*88*34mminstallationsurface installationinner package190*96*40mmpower supplyAC adapterstandard packingoutdoor station,4P connector,2P connector and use's manualcarton sizeBig one: 50*41*31cm Small one:34*28*24cmweightN.W : 440gwarranty1 year model: OP-D6B2-Bfunctioncalling,talking,remote control unlockapplicationoffice,villa,warehouse,apartmentcommunicationhandset communicationhousingABSTemperature-40 70 DegreeAtmospheric pressure86Kpa 108KpaProtection levelIP33relative humidity45% 95%working current≤20 mAwaiting current≤300 mAdistance form camera50m(RVV*0.5) 50-100m(RVV*0.75)screen4''TFT LCD or 4'' CRTadjustmentBrightness,contrast and volumeinstallationsurface installationtalking time100 secondsworking voltageDC 15Vwiringuse 4P cable contact monitor with outdoor stationproduct dimension227*190*60mmstandard packingindoor phone, 5P connector, AC adapter, user's manualpackingcolor box packingcarton sizeBig one: 50*41*31cm Small one:34*28*24cmweightN.W : 1282g