Specifications: Provides 5 selectable functions to meet various application needs. Users can set upper and lower voltage limits. Measuring range: DC 0-100V, with measurement accuracy of ±0.1V. Features automatic power-saving function; settings can be configured independently. All setting parameters are saved automatically and retained after power is disconnected. Includes 0-99.9 seconds delayed close and 0-99.9 seconds delayed disconnect function. The 5 Functions: Voltage Measurement: When selected, the relay does not operate; the digital display shows the real-time measured voltage. Charging Monitoring: Relay closes when measured voltage is below the lower limit; relay opens when voltage exceeds the upper limit. Discharge Monitoring: Relay closes when measured voltage exceeds the upper limit; relay opens when voltage drops below the lower limit. Close in Interval: Relay closes when measured voltage is between the upper and lower limits; otherwise, the relay is open. Close outside Interval: Relay closes when measured voltage is below the lower limit or above the upper limit; otherwise, the relay is open. Item Name: Voltage Comparator Material: Electronic Components Type: DVB01 Operating Voltage: DC 5V/12V/24V (Optional), within ±10% of nominal voltage Working Current: Not specified Operating Temperature: -20°C to 60°C (Storage Temperature: -30°C to 70°C) Measurement Range: 0-99.9V Load Capacity: - Relay Normally Open (NO): DC 0-30V/10A, AC 0-250V/10A - Relay Normally Closed (NC): DC 0-28V/10A, AC 0-125V/10A Module Voltage Input Terminals: 1: DC+ – DC Power Supply Positive 2: DC– – DC Power Supply Negative 3: V+ – Measurement Voltage Positive 4: V– – Measurement Voltage Negative Relay Load Output Terminals: 1: NO – Normally Open contact, open before activation, connects to COM when activated 2: COM – Common terminal 3: NC – Normally Closed contact, connected to COM before activation, disconnects after activation Features: Overload protection, digital voltage display, voltage measurement Dimensions: 6.7cm x 4.4cm x 2cm (Approx. 2.64" x 1.73" x 0.79") Notes: Due to differences in lighting and monitor settings, the actual product color may vary slightly from images. Slight dimensional variations may occur due to manual measurement. Package Includes: 1 x Voltage Comparator