# Vutlan VT825G — 1U Data Center Monitoring Unit

URL: https://www.promark.tr/en/products/vutlan-vt825
Category: Monitoring & Sensors
Family: [Vutlan Infrastructure Monitoring & Sensor System](https://www.promark.tr/en/products/site-monitoring)

19" 1U environmental monitoring and I/O control unit for mid-to-large data centers, telecom facilities and critical infrastructure. 8 analog sensor ports, CAN bus, 16 dry-contact inputs, 2 × 10A power relays and 2 × 12V outputs; scales to 130 physical sensors and 1000 elements. Gigabit LAN, dual AC/DC power options, VT7670 LTE modem and backup battery slot.

## Key features

- 8 × RJ12 analog sensor ports (A1–A8) — sensor type auto-sensing.
- 1 × CAN bus port — up to 32 devices per chain (24 recommended); +8 analog ports with VT408, +32/64 dry contacts with VT440.
- 16 dry-contact inputs, 2 × NC/NO/COM latching power relays (240V 10A) and 2 × 12V 0.25A electronic relay outputs.
- Capacity: 130 physical sensors (sensors + dry contacts + relays), 1000 elements (sensors, notifications, triggers, timers, logic, SNMP Get/Trap).
- Built-in temperature sensor (±1 °C) and supply-voltage sensor.
- 720 MHz dual-core CPU, 128 MB RAM, Linux 6.2; 10/100/1000 Mbit LAN.
- Protocols: HTTP/HTTPS (TLS 1.0–1.3), SNMP v1/v2c/v3, Modbus TCP, Modbus RTU (with VT485m), SMTP, FTP, Syslog, RADIUS, DynDNS, OpenVPN, API.
- Notifications: e-mail, SNMP trap, Syslog, FTP log, Web-to-SMS, PUSH; SMS with the VT7670 modem.
- Virtual elements: PING, SNMP GET, timer, trigger, logic scheme, virtual math; 4 IP cameras (MJPEG) + 1 USB camera.
- Extension slots: VT7670 4G LTE modem (SMS + LAN backup), VT485m Modbus RTU or VT485r OSDPv2 reader, VT-ACCU rechargeable or VT-BAT 9V backup battery.
- Power: 3 equivalent power lines (AC / AC / 12V DC) with instant switchover, 4th line backup battery. Order options: VT825G (1 × AC), VT825Gt (2 × AC, A/B), VT825GDC (AC + 24–48V DC), VT825DC, VT825DCDC.
- MicroSD (≤512 GB) and USB flash logging; 1 s sample rate.
- 19" 1U sheet-metal chassis, 440 × 44 × 90 mm, 1.5 kg; rack brackets included.
- Operating: −10…+70 °C, 0–90% RH non-condensing; power consumption 1–10 W.
- Manufacturer: Vutlan s.r.o., based in Bratislava (Slovakia); 3-year appliance warranty.
- Promark: site survey, sensor placement plan, installation, commissioning and SNMP / OSFM / Zabbix integration.

## Specifications

- **Type:** 19" 1U monitoring and I/O control unit
- **Manufacturer:** Vutlan s.r.o. (Bratislava, Slovakia)
- **CPU:** 720 MHz, 2 cores
- **Memory / OS:** 128 MB RAM, Linux 6.2
- **Network:** 10/100/1000 Mbit Ethernet
- **Analog port:** 8 × RJ12 (auto-sensing)
- **CAN bus:** 1 port — 32 devices (24 recommended)
- **Dry contact inputs:** 16
- **Power relays:** 2 × latching NC/NO/COM, 240V 10A
- **12V outputs:** 2 × 0.25A (electronic relay)
- **Capacity:** 130 physical sensors, 1000 elements
- **LTE modem:** VT7670 (ordered separately)
- **Extension slot:** VT485m (Modbus RTU) or VT485r (OSDPv2)
- **Backup battery:** VT-ACCU or VT-BAT (ordered separately)
- **Power:** 100–240V AC (C14) or 24–48V DC (18–72V), depending on order option; 12V DC backup terminal
- **Order options:** VT825G, VT825Gt, VT825GDC, VT825DC, VT825DCDC
- **Power consumption:** 1–10 W
- **Dimensions:** 440 × 44 × 90 mm (19" 1U)
- **Weight:** 1.5 kg
- **Operating conditions:** −10…+70 °C, 0–90% RH (non-condensing)
- **Warranty:** 3 years (appliance); Vutlan s.r.o., Bratislava (Slovakia)

## Use cases

- Data center — temperature, humidity, raised-floor water leak, airflow, UPS and cooling status monitoring.
- Telecom facility — generator, DC power and cabinet environment; SNMP integration into OSFM / NMS.
- Industrial automation — voltage, smoke and leak monitoring; fan, breaker and alarm control.
- Building management — I/O control of HVAC, smoke detectors and door control systems.
- Critical infrastructure (power, water treatment) — dual power, LTE backup link and SMS alarms.

## For a quote and BOM

https://www.promark.tr/en/contact · +90 312 544 0915 · destek@promark.tr