VT325 / Room Guard

MSRP price: €359.00

  End of Life:  30.10.2022

Room guard unit VT325 - lower-cost server room temperature monitor.

There are built-in servers and agents like HTTP, HTTPS, SNMP v1, 2c, 3, SMTP, Radius, Syslog, FTP, DHCP, and Watchdog. 

Possible extensions ( Ordered separately): VT10 / 1-Wire Board and VT85 / Modbus Extension Board


2 analog ports.jpg

Sensors ports

Connect sensor by a supplied RJ-11 (6P4C) cable to any"A1 - A2" port. The determination of the sensor type and connection will occur automatically.

12V outputs for alarms

The appliance has the possibility to connect two devices (for example, alarm beacons) managed by a built-in electronic relay.

2 Dry contacts.jpg

Dry contact inputs

VT325 has 2 dry contact inputs. It can be used together with any contacts, for example with door or window contacts, circuit breakers, etc.


Type miniAB USB-port 2.0, Can connect USB camera; or connect a PC for restoring an appliance; or connect USB flash for saving logs; or connect Modbus sensors/devices / meters using RS485-to-USB adapter.

Temperature sensor

The temperature sensor is built-in inside VT325. It is situated on the board, inside the enclosure of the unit. Accuracy equals +/- 1°C.

1-wire extension.jpg or

Extension: Modbus or 1-Wire

VT325 has the possibility to install the "VT85 / Modbus extension board" or the "VT10 / 1-Wire board" extension (ordered separately).

1-wire extension.jpg


VT325 has the possibility to install "VT85 / Modbus extension board" or "USB485 / RS-485 to USB adapter" extensions (ordered separately).

USB camera / IP cameras

USB camera (class Linux UVC Webcam which supports MPEG) can be connected to the "HS" port. Using a built-in interface it is possible to add IP cameras. This will allow viewing footage from surveillance cameras remotely,

USB flash drive

USB flash drive can be connected to VT325 using OTG miniUSB cable. Flash drive is used by the system for saving logs. More USB devices can be connected to one HS USB port using a USB hub.



"ACT" - indicates appliance status, "E1" - indicates 12V "E1" relay status, "E2" - indicates 12V "E2" relay status, "ERROR»" - indicates error and traffic.

12V DC_1.jpg

DC power input

Power adapter DC 12V 500mA.


Chassis grounding

VT325 has the possibility to connect external chassis grounding (M4 thread).


Ethernet 10/100 Base-T port, provides a network connection.

Data sheet

Product dimensions
W139 x H33.1 x D79mm
Packaging weight
0.5 kg
Power input
12V DC, 0,5A
Power Consumption
6 Watt
Operating temperature
Temperature : Min. -10° C - Max.+80° C
Chassis grounding (M4 thread)
Recovery switch
Restart button
Mounting possibilities
19" rack mount holes (brackets not included)
Wall mount
Wall turnable mount (with extension)
Max. distance from the unit
100 m
Manufactured in (country)
Manufactured in Slovak Republic, E.U.
HS Code
8471 50 000
Brackets (accessories)
VT112 / Rotatable mounting brackets (ordered separately)
Inputs terminals
Analog sensor ports: x2 ports
Dry contacts / Digital inputs: 2 contacts (pitch 3,5mm, type IN)
Expansions (ordered separately) *
VT10 / 1-Wire Board
Processor *
ARM926-300 MHz / 64 MB / Linux-2.6.38
Network Interface *
1-Wire (with extension)
Ethernet 10/100 Mbit/s
Built-in sensors *
Power supply voltage sensor (1%)
Temperature sensor (Accuracy 1%)
Outputs terminals
Two 12V 0,25A outputs (pitch 3,81mm, 3P)
Status Indicators *
Error LED
LED indication for Power / Network connectivity
Two relay status LEDs


VT325 Brochure Web EN

Download (3.3MB)

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