AVTECH Room Alert 12S

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£682.80 £569.00

A mid-range ethernet based temperature and environment monitoring solution with no compromise on features, flexibility, reliability or value.

The Room Alert 12S is AVTECH's mid-range environment monitor in the Room Alert PRO line, offering the highest security features such as HTTPS, TLS and SNMP v3.

Like the Room Alert 12E, this model monitors temperature plus up to 8 more environment conditions of your choice including an analog (0-5VDC) input. It also offers an additional dedicated relay port to toggle low-voltage electrical devices.

When conditions exceed your thresholds, Room Alert notifies you right away so you can act quickly.

  • Send email messages from the device.
  • Trigger the warning LEDs and siren sound on a Light Tower.
  • Pair with RoomAlert.com (or other compatible platforms) for even more alerting capabilities.

The Room Alert 12S offers secure features like HTTPS, TLS and SNMP v3. Don't need those features? Consider the Room Alert 12E.

The Room Alert 12S can be mounted with a in a 1U rack enclosure using the included rack mount.

As part of AVTECH's Room Alert PRO line, the Room Alert 12S features these secure protocols:

  • View the built-in web interface over HTTP or HTTPS.
  • Push data to your RoomAlert.com account over HTTPS.
  • Send alert notifications from the device over your TLS mail server.
  • Integrate the device into your preferred SNMP program over SNMP v3. (SNMP v1 traps and SNMP v2c also available)
  • Update your firmware with your authenticated username & password.

AVTECH’s Room Alert 12S/12SR has the features of AVTECH's flagship Room Alert 32S model on a smaller scale and a lower price. It securely monitors your facility for temperature and has a capacity for up to 8 more sensors. Our standard package includes 1 external Digital Active Power Sensor w/ Temperature to help monitor the power status of critical electronic devices that draw 100W of power or more.

Additional dedicated ports allow you to toggle electrical devices, such as AC units, fans, alarm panels and the warning LEDs/siren sound on a Light Tower.

The 12SR version has a removable rack mount and fits 1U of space in a server cabinet; the 12S version can hang from a ceiling or on a wall from its wall mount. Meant for mid-sized spaces requiring thorough and secure coverage, this unit is at home in server rooms, warehouses and any space requiring eyes on a several different conditions — or on the same condition in several targeted locations.

Use Room Alert 12S on its own or pair it with these powerful platforms.

  • RoomAlert.com
  • 3rd-party SNMP or JSON

Trigger alerts, reminders and “all-clears” in response to environmental thresholds that you set.

Receive alerts in the best format for you.

  • Email
  • Text message
  • Visual/audible signal
  • HTTP post
  • SNMP trap

View sensor readings on an easy-to-read web interface—over the Internet or on your local network.

Compile, graph and download historical sensor data to spot trends in your environment.

Power Room Alert by PoE or with included 5V power adapter.

Supported Sensors

The AVTECH Room Alert 12S is the monitoring base unit and has one built-in temperature sensor. You can add further external sensors in order to sense a wide variety of different environmental factors in your data center.

Sensor Connectors 3 x RJ-11 Digital Sensor Connectors
4 x Dry contact two pin connectors
1 x Relay Output
1 x Analog Sensor Input
1 x Light Tower Connector
Built-in Sensors Temperature
Max. External Sensors 3 x Digital Sensors
4 x Switch Sensors or Dry Contacts
1 x Analog Sensor
1 x Relay Connected Device
Supplied External Sensors 1 x Digital Active Power  Sensor
Supported External Sensors Digital Temperature Sensor
Digital Temperature/Humidity Sensor
Digital Outdoor Temperature Sensor
Digital Fluid Temperature Sensor
Extreme High Temperature Sensor
Extreme Low Temperature Sensor
Flood Sensor (Spot)
Rope Flood Sensor
Mains Power Sensor
Air Flow Sensor
Smoke Sensor
Motion Sensor
Room Entry Sensor
Fuel Level Sensor
Water Level Sensor

Room Alert Range Feature Summary

  Room Alert 3 Wi-Fi Room Alert 3E Room Alert 3S Room Alert 12S Room Alert 12SR Room Alert 32S
Mounting Wall Wall Wall Wall Rack Rack
Network Wi-Fi Ethernet Ethernet Ethernet Ethernet Ethernet
Digital Sensors Digital sensor ports only support connecting digital sensors. Digital sensors measure within a range of values, like a temperature range. 1 1 1 3 3 8
Switch Sensors Switch sensor ports only support connecting switch sensors. Switch sensors only measure one of two states, the normal state and the alarm state. Take the smoke sensor as an example, it has a normal state which indicates no significant smoke is present and an alarm state that indicates that a significant amount of smoke is present perhaps indicating a fire. 1 1 1 4 4 16
Analog Sensors Analog sensors provide values as voltages between 0-5VDC. Common analog sensors include current loops and extreme high and low temperature sensors. The Room Alert 3 WiFi and Room Alert 3E do not support analog sensors, but you can buy the Digital Temperature & Analog Sensor to add support at the cost of one of your digital sensor ports. 0 0 0 1 1 2
Light Tower & Relay PortsA port for connecting a Light Tower to your Room Alert. There are two port types. The Room Alert 4E / 4ER has a six terminal port to plug in the AVTECH External Light Tower. The Room Alert 12E, 12ER, 32E and 32W all have RJ11 connectors dedicated to the light tower. But the light tower must be the model with the built-in light tower adapter. The Room Alert 3E also supports the light tower but does not have a dedicated port. You must use one of your digital sensor ports to connect the light tower. 0 0 [1] 0 [1] 1 [1] 1 [1] 2 [1]
Relay Output PortsTwo pin port (0.3A@125VAC / 1A@24VDC) for connecting an output relay to your Room Alert. 0 0 0 1 1 2
Built-in Sensors Temperature Temperature Temperature Temperature Temperature Temperature, Humidity, Power
Supplied External Sensors None None None 1 x Digital Active Power Sensor 1 x Digital Active Power Sensor 1 x Digital Active Power Sensor
1 x 7.5m Digital Temperature Sensor
Secure HTTPS No No Yes Yes Yes Yes
Secure Email Alerts No No Yes Yes Yes Yes
Built-in UPS An Uninteruptable Power Supply or UPS keeps your monitoring system alive during power outages giving your monitoring system time to send alerts. No No No No No Yes

[1] A Light Tower can be connected to the Room Alert 3E, Room Alert 3S, Room Alert 12S & 12SR and Room Alert 32S using a Light Tower Adapter. The Room Alert 12S, 12SR and 32S all have dedicated ports for connecting the Light Tower with Adapter. On the Room Alert 3E and 3S you need to use one of the digital sensor ports. You can buy a light tower with integrated light tower adapter for use with the Room Alert 3E, 3S, 12S, 12SR and 32S.

What is RoomAlert.com?

RoomAlert.com is a cloud based service for monitoring Room Alert monitors and newer Axis cameras combined with a download area for device firmware updates and Device ManageR software and plugins. The service has a number of different subscription levels, Lite, Personal, Professional and Enterprise. The level of your subscription dictates what level of access to the RoomAlert.com service you receive. If you require a level of access afforded by a higher level of subscription, you can upgrade your subscription to the higher level at any time.

Room Alert Manager Device Screen

Room Alert Manager

Room Alert Manager is AVTECH's all-in-one software solution for the discovery, management, monitoring, alerting, logging, graphing, automatic action and more of AVTECH's IT & facilities environment monitoring products. Complete with its unique range of features, Room Alert Manager runs as a Windows Service and will continuously and automatically discover Room Alert devices network-wide and display multiple units through a single IP address. Multi-level user access is available through Room Alert Manager’s web interface, accessible from anywhere.

Room Alert Manager offers the perfect complimentary software platform to AVTECH’s products, making it easy for users with multiple Room Alert devices to monitor and document environment conditions, improve reliability, and decrease unplanned downtime as part of their business continuity plan.

Room Alert Manager includes powerful features that allow users to send alert notifications when issues or events are detected by their Room Alert monitors and sensors. Room Alert Manager allows for unlimited alerting of customizable alert notifications to individuals and groups, hierarchies, dependencies and scheduling. It also allows for Actions on Alert/Alert clear conditions such as toggling Light Tower LEDs, Send Web URL requests and more. All this is possible through a single local software installation, with no rules and no agents.

Ideal for managing multiple deployments or single units, Room Alert Manager also allows users to take automatic actions to resolve issues, automatically log sensor data in an embedded SQL database for one click export, view graphed data over a user-specified amount of time with the ability to toggle between graph and sensor displays, monitor alert status for multiple units, set monitoring thresholds, set multiple IP addresses, securely update firmware and so much more. Users can categorize devices based on their own custom criteria, so users can group devices by type, location, or any other metric that allows for easier device management.

GoToMyDevices Screenshot

Manage in the cloud with RoomAlert.com

RoomAlert.com gives you worldwide visibility of your environment data, with built-in alerting, logging, reporting and management. You'll no longer need to guess what your data center temperature is, you'll be able to see in real time exactly what the temperature is from any web connected device like your smart phone or tablet. All Room Alert monitors send your data readings straight up to RoomAlert,com where it is stored, logged and, if necessary, triggers an alarm for you.

RoomAlert.com Subscription Levels

Each Room Alert monitor includes a 12 month Personal subscription to RoomAlert.com. You can upgrade your subscription at any time to a higher subscription level. If after your twelve months subscription you do not renew, then your subscription level reverts to the Lite level. The Lite subscription gives you limited access to the cloud service but it does not give you access to the Downloads area.

  Base Account Personal Professional Enterprise
Support Online FAQs & Resources Email Support Email, Chat & Phone Support Email, Chat & Phone Support
Downloads Firmware Downloads Download Access Download Access Download Access
Plugins No Plugins No Plugins Device ManageR Plugins Device ManageR Plugins
Number Devices 1 Devices 10 Devices 25 Devices 50 Devices
History 1 Days History 30 Day History 180 Day History 365 Day History
Number Alerts 1 Configured Alerts 10 Configured Alerts 25 Configured Alerts 75 Configured Alerts
Number Notifications Unlimited Notifications Unlimited Notifications Unlimited Notifications Unlimited Notifications
Reports 1 Saved Report 3 Saved Report 7 Saved Report 25 Saved Report
Report Runs Unlimited Report Runs Unlimited Report Runs Unlimited Report Runs Unlimited Report Runs
URL No Public URL No Public URL Public URL Public URL
Users 1 Users 2 Users 10 Users 25 Users
Network Camera Support No Network Cameras No Network Cameras Network Cameras Monitoring Network Cameras Monitoring
CSV Export No CSV Export No CSV Export CSV Export CSV Export

What's in the Box?

  • Room Alert 12S base unit
  • 1 x Digital 7.5m Temperature / Humidity Sensor
  • 1 x external power adapter
  • 12 Months Personal level RoomAlert.com subscription
  • Printed manuals
More Information
Connectivity Ethernet (RJ45)
Built-in Sensors


Max External Sensors

3 x Digital Sensors

4 x Switch Sensors or Dry Contacts

External Sensors Supported
Sensor Type
AVTECH 7.5m Digital Temperature Sensor Digital
AVTECH 15m Digital Temperature Sensor Digital
AVTECH 30m Digital Temperature Sensor Digital
AVTECH 7.5m Digital Temperature/Humidity Sensor Digital
AVTECH 15m Digital Temperature/Humidity Sensor Digital
AVTECH 30m Digital Temperature/Humidity Sensor Digital
AVTECH 7.5m Digital Outdoor Temperature Sensor Digital
AVTECH 15m Digital Outdoor Temperature Sensor Digital
AVTECH 30m Digital Outdoor Temperature Sensor Digital
AVTECH 7.5m Digital Fluid Temperature Sensor Digital
AVTECH 15m Digital Fluid Temperature Sensor Digital
AVTECH 30m Digital Fluid Temperature Sensor Digital
AVTECH Flood Sensor (Spot) Switch
AVTECH Rope Flood Sensor Switch
AVTECH Mains Power Sensor Switch
AVTECH Digital Active Power Sensor Digital
AVTECH Air Flow Sensor Switch
AVTECH Smoke Sensor Switch
AVTECH Motion Sensor Switch
AVTECH Room Entry Sensor Switch
AVTECH Fuel Level Sensor Switch
AVTECH Water Level Sensor Switch
External Sensors Supplied

1 x Digital Active Power Sensor with built-in temperature sensor

Mounting Options Wall
Logging Yes
User Interface Built in web interface
Alerting Email, Secure Email, Siren / Strobe Light, SNMP Trap, Secure SNMP Trap
Supported Protocols


SNMP v2c



Dimensions 4.4cm H x 9.5cm D x 11.4cm W

3 x RJ-11 Port for Digital Sensors

4 x 2 Wire Terminal

Operating Environment

Temperature: -40 to 85C

Humidity: 5% - 85% RH (non condensing)

Network Interface

RJ-45, 10/100 Mbps BaseTX

Status Indicators

Ethernet Link & Activity Indicator

Digital Sensor Alert Indicator

Switch Sensor Alert Indicator

PoE Indicators

Power over Ethernet IEEE 802.3af
Temperature Units Celsius / Fahrenheit
Customer Questions
No Questions
  1. Help Protect Against Water Leak Damage With the AVTECH Spring Flood Sensor Promotion! Help Protect Against Water Leak Damage With the AVTECH Spring Flood Sensor Promotion! AVTECH Software's great new summer offer. Choose either a FREE Flood Sensor with all Room Alert 32S and Room Alert 12S/SR monitors OR purchase a Flood Sensor and receive a FREE Room Alert 3 Wi-Fi monitoring unit. This offer expires 30th June 2021.
  2. Announcing the new AVTECH Room Alert 12S / 12SR Announcing the new AVTECH Room Alert 12S / 12SR AVTECH Software have announced the immediate availability of the new Room Alert 12S and Room Alert 12SR. The Room Alert 12S and 12SR is an upgraded version of the Room Alert 12E and 12ER respectively with the addition of added security features like secure browsing and secure SNMP.
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How to Buy

Ordering from outside the UK?

OPENXTRA is able to supply this product worldwide. Order online using either UK Pounds or Euros, email us, request a quote or call +44 (0)1943 465918 for a quotation in UK Pounds, Euros. If you are in the EU but outside the UK, we may be able to quote ex. VAT.

We can also supply UK, European or US style power supplies for most products.