1、Voltage Limits Setting: Users can set the upper and lower voltage limits using the digital voltage comparator. 2、High Accuracy: Measuring range is DC 0‑100V, measuring accuracy is +/‑0.1V, high accuracy. 3、Automatic Power Saving: The digital voltage comparator adds automatic power saving function, which can be set by users. 4、Auto Save: All Settings can be automatically saved, and the Settings will not be lost in power failure. 5、Delay Suction Delay Disconnect Functions: Provides five functions for users to choose from, to meet more application requirements, new 0‑99.9sec delay suction and 0‑99.9sec delay disconnect functions. Item Type: Digital Voltage Comparator Material: PCB Working Current: Less Than 90mA at 5v (less Than 12mA when the Relay Does Not Act, Less Than 3mA when the Display is Closed) Less Than 50mA at 12v (less Than 12mA when the Relay Does Not Act, Less Than 3mA when the Display is Closed) Less Than 35mA at 24v (less Than 12mA when the Relay Does Not Act, Less Than 3mA when the Display is Closed) Working Temperature: - 20 ℃ to 60 ℃ (limit Range - 30 ℃ to 70 ℃) Measuring Range: 0-99.9v Load Capacity: Maximum Load Capacity of Normally Open Port of Relay: Dc 0-30V/10A, Ac 0-250V/10A Maximum Load Capacity of Normally Closed Port of Relay: Dc 0-28V/10A, Ac 0-125V/10A Module Interface: Module Voltage Input Terminal: There Are 4 Wire Interfaces, and All Interfaces Are Equipped with Terminal Blocks, Which Are Convenient for Users DC+: Positive Pole of DC Power Supply DC-: Negative Pole of DC Power Supply V+: Measuring Voltage Positive Pole V-: Measuring Voltage Negative Pole Load Output Terminal of Relay: There Are 3 Wire Interfaces, and All Interfaces Are Provided with Terminal Blocks NO: Normally Open Interface of Relay; The Relay is Suspended Before Suction, and is Short Circuited to Com After Closing COM: Relay Common Interface NC: Normally Closed Interface of Relay, Short Circuited with Com Before Relay Closing, Suspended After Closing 1 x Digital Voltage Comparator