Is Smart Device : NODisplay Type : DIGITALWith Backlight Or Not : YESModel Number : PH-301Certification : NONEMeasuring Range : 0.00~14.00pHResolution : 0.01PHAccuracy : 0.1%+2 digitsInput Resistance : 1012Set Range : 3.50~10.50pHCalibration : Double PointsOperation Temp. : 0 to 50 C (32 to 122 F)Digital pH Controller Meter Tester with Optional HI/LO Action 0.00~14.00pH Range Replaceable BNC Electrode 30%offProduct Features:With optionalHI/LO ActionBest for heavy duty or Industrial useBigger and re-engineered body structureFast response and easy to calibrateDurable and built to last longWith big digital display and accurately measures & is easy to useHeavy-duty, Compact & Lightweight for mobility and extremely easy-to-useAccurate testing results guaranteedApproved by strict quality and safety standards which ensures a reliability, durability, long and trouble-free lifeUses Protection Dead Band FeatureGives you an option to mount it on the wall or hung on the solution's container while using or installing the unitProvides Power Cord for EUProduct Descriptions:Measuring Range: 0.00~14.00pHResolution: 0.01PHAccuracy: 0.1%+2 digitsInput Resistance: 1012Set Range: 3.50~10.50pHVoltage: available in 110V & 220VCalibration: Double PointsDisplay 4 LED display readingPower Supply: in LabelEnvironment:Operation Temp. : 0 to 50 C (32 to 122 F)Ambient Humidity : 90 or less than 90 % R. H.Power Requirement : AC110V 10% 60Hz / AC220V 10% 50HzPower Consumption: 2 wattsRelay Contact : 5A for AC 110V and 220VOutput Voltage : the same as power supply voltagePackage Inclusions:1 x Digital pH Controller1 x Detachable pH electrode1 x English Operation Manual1 x Controller Holder for hanging the device1 x Power Cord (EU) (battyery not include)