Check the listing for details. X-310-24I Web Relay,9-28VDC,4 Digital Inputs,4 Relays,4 Temperature Sensor Input. Condition: Used. Listed at 77.77 USD. X-310-24I Web Relay, 9-28VDC, 4 Digital Inputs, 4 Relays, 4 Temperature/Humidity sensor InputsRelay Contacts Number of Relays: 4 Max Voltage: 28VAC, 24VDC Max Current: 1A Contact Type: SPST (Form A) All Relays have a shared common Load Type: General Purpose Contact Resistance: < 100 milliohms initial Contact Material: AgNi Electrical Life: 100K operations (Min) Mechanical Life: 5M cycles (Min) Environmental Rating: Over voltage Category II, Pollution Degree 2 Relay Modes: ON/OFF or Pulsed Pulse Timer Duration: 0.1 to 86,400 Seconds (1-day) Digital Inputs Number of Inputs: 4 Type: Non-Isolated Voltage Range: X-310-I: 4-12VDC X-310-24I: 11-26VDC X-310-E: 4-12VDC X-310S-I: 4-26VDC X-310S-E: 4-26VDC Current: X-310-I: 4.7-25mA X-310-24I: 4.7-25mA X-310-E: 4.7-25mA X-310S-I: 950uA @ 4V, 8.5mA @ 26V X-310S-E: 950uA @ 4V, 8.5mA @ 26V Minimum Hold Time: 20ms Input Functions: Monitor State, Control Relays, Control Remote Relays, Scalable Counter (Inputs 1 & 2), High Timer Maximum Count: 32-bit Max Count Rate: 25Hz Max (Dependent on Configuration) Edge Trigger: Rising, Falling or Both Temperature Sensors Maximum Number of Sensors: 4 Type: Temperature Range: -67°F to 257°F (-55°C to +125°C) Accuracy: ±0.5°C (from -10°C to +85°C) Sensor Functions: Monitor Temperature, Log Temperature, Email Alerts, SNMP Traps Humidity Type: Xytronix Model X-DTHS-WM wall mount sensor Humidity Range: 0-100% RH Accuracy: ±1.8% Real-Time Clock: Manual or NTP(Network Time Protocol) setup NTP Sync Period: Once, Daily, Weekly, On Powerup Auto Daylight Savings Adjustment Battery (capacitor) Power Backup Capacitor Power Backup Backup Functions: Retain Real-Time Clock, External Variables, Relay State, and Counters Backup Duration: 3 days minimum Network Type: 10/100 Base-T Ethernet Port Setup: Static or DHCP IP address configuration Connectors Power, Outputs, and Inputs: 14-Position, 3.81mm terminal spacing, Removable. For 16-28 AWG wire. Network: 8-pin RJ-45 LED Indicators Number of LEDs: 7 Power on Relay coil energized 1-4 Network linked Network activity Physical Operating Temperature: -40°F to 150°F (-40°C to 65.5°C) Size: 1.41in (35.7mm) wide 3.88in (98.5mm) tall 3.1in (78mm) deep (not including connector) Weight: 5 oz (142 grams) Enclosure Material: Lexan 940 Polycarbonate Plastic Enclosure Flame Rating: UL94 V0 Protocols HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services (HTTPS and SSL supported by X-310S only) Logging Log File Size: 512K (max 28,829 logs) Storage: Nonvolatile Flash Buffer Architecture: Circular Buffer Log data can be periodically read and stored on a computer Advanced Features BASIC interpreter Remote services Avoid most firewall issues with outbound connection to Web Services Password Settings Password protection on setup page: Yes Password protection on control page: Optional Password Encoding: Base 64 Password Length: 13 Characters Electromagnetic Compliance IEC CISPR 22, CISPR 24 EU EN55024, EN55022 X-310S-I: FCC 47CFR15 (Class B) X-310S-E: FCC 47CFR15 (Class A) Product Safety Compliance IEC 61010-1 ApplicationsThe X-310™ is a simple but powerful Ethernet I/O (or web I/O) device. The four relays and four inputs can be used for thousands of applications from event counters, to machine monitoring/control, to extending I/O from a PLC to another building, and much more.The X-310's powerful and flexible design make imagination its only limit.Shift change bellsUse the X-310 to automatically turn on bells/horns for shift changes. Up to 16 remote bells can be controlled directly from the X-310. If more bells are needed, daisy-chaining can be used.Temperature monitoring and loggingUse the X-310's temperature and digital inputs to monitor and log temperature and door status at the same time. Four electro-mechanical relays (shared common) independently controlledFour digital inputs (shared ground)Two, scalable-counter inputs (Inputs 1 & 2)One-wire bus for up to 4 temperature and/or humidity sensorsControl up to 16 remote relaysMonitor and log power supply (voltage)Highly configurable - almost any combination of input/relay control possibleReal-Time Clock with NTP server synchronizationAutomatic daylight savings and leap year adjustmentFull calendar scheduling with 100 programmable eventsNo software requiredCustomizable web-based control pageBASIC script support for advanced flexibilityConfigurable loggingGraphing (logged data)Send email alerts based on user-defined conditionsSupports encrypted email servers, such as gmail (X-310S models only)Supports HTTPS (X-310S models only)Static or DHCP IP address configurationXML, Modbus/TCP, and SNMP interface optionsField updatableRemovable 14-Terminal connector for easy installationRugged DIN-Rail/wall-mountable enclosure GeneratorBasic configuration for remote starting and monitoring the status and temperature of an industrial generator.Solar Energy ControllerBasic differential-temperature solar energy controllerSecurityUse the X-310 to lock/unlock doors at preset times. An electric lock controlled by the X-310 can be used in conjunction with a mechanical lock to allow access at certain times. Persons with keys can access a building during the day while electric lock is off but access is denied at night when the X-310 turns on the electric lock. In addition, the X-310 can send email alerts when the door is opened (anytime or just when the door is locked).