Skip to content


Room Alert 3E

The Room Alert 3E is AVTECH’s most economical environment monitor with the smallest footprint. It monitors temperature, plus up to 2 more environment conditions of your choice.

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

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

The Room Alert 3E connects to your network via Ethernet cable. Need a model that connects via Wi-Fi? Consider the Room Alert 3 Wi-Fi.

$373.00 exc. GST


Room Alert 3E Description

AVTECH’s Room Alert 3E boasts the capabilities of our larger environment monitors, but with the smallest footprint and the lowest cost. This little powerhouse monitors your facility for temperature and up to two more environment conditions of your choice.

True to its compact form, the Room Alert 3E’s lone digital port does double-duty. It can take a sensor to read your environment or an adapter to act on it. With the Light Tower & Relay Adapter, you can respond to conditions like a rise in temperature by turning on your AC—and alerting staff in the immediate area with the red light and siren sound on a Light Tower!

Small and light, the Room Alert 3E can hang from a ceiling or on a wall with no special tools; it fits easily in telecom or wiring closets, server rack cabinets, and other locations where space is at a premium. Multiples of this unit be distributed across strategic locations of larger spaces to cover more ground.

Use Room Alert 32S on its own or pair it with these powerful platforms!
– Room Alert Manager
– 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.


Room Alert 3E Specifications

Feature Description
Internal temperature sensor Condition monitored Indoor ambient temperature
Type Digital
Range -40 to 185 F (-40 to 85 C)
Accuracy +/- 2° C
Resolution 0.03125° C
Readings Numeric values in Fahrenheit or Celsius
Feature Description
External sensor & accessory ports 1 digital sensor/accessory port (RJ-11)
1 switch sensor port (screw terminal block)
Feature Description
Power & connectivity ports 1 5V barrel-connector power jack
1 RJ-45 Ethernet port (PoE-enabled)
Feature Description
Power supply AVTECH 5V power adapter (100/240 VAC, 50/60 Hz, RoHS)
or PoE (IEEE802.3af compliant)
Feature Description
Dimensions Height 0.875″
Depth 3.625″
Width 1.75″
Feature Description
Weight 0.15 lbs
Feature Description
Operating tolerances Temperature -40 to 185 F (-40 to 85 C)
Humidity 5% – 85% RH, non-condensing
Do not place Room Alert monitors inside refrigerators/freezers—these are condensing environments.

Compatible Products

Room Alert 3E Compatible Products

Compatible monitoring platforms
Compatible sensors & accessories
Compatible power adapters

Compatible monitoring platforms

You may access your Room Alert 3E through the compatible platforms below. For more information, please see our FAQ, The Differences Between Room Alert Monitoring Platforms.

Room Alert’s built-in web interface Account
Room Alert Link software
Room Alert Manager software
Replaces Device ManageR.
Device ManageR software
Device Discovery utility
3rd-party off-the-shelf SNMP program
3rd-party custom HTTP/JSON application

Compatible sensors & accessories

Room Alert’s built-in web interface Matching ports on this model
Any AVTECH digital sensor
AVTECH’s Light Tower & Relay Adapter (LTA)
Built-in 1 digital ports
Any AVTECH switch sensor
Any 3rd-party device with open/closed dry contacts
Built-in 1 switch ports
Any AVTECH analog sensor
Any 3rd-party analog sensor that outputs 1 to 5 VDC
External Add 1 analog port.
Here’s how: Put a Digital Temperature & Analog Sensor in your device’s built-in digital port.
3rd-party low-voltage electrical devices
External Add 1 relay output port.
Here’s how: Put a Light Tower & Relay Adapter in your device’s built-in digital port.
External Then add up to 4 more relay output ports.
Here’s how: Put a Relay Switch in the Light Tower & Relay Adapter.
AVTECH’s Light Tower
AVTECH’s Relay Switch
External Add 1 compatible port.
Here’s how: Put a Light Tower & Relay Adapter in your device’s built-in digital port.

Compatible power adapters

Always use an AVTECH 5V power adapter with your Room Alert. Others will void your warranty and may damage your unit.

AVTECH’s 5V standard power adapter (USA, Canada, Japan)
AVTECH’s 5V international power adapter
AVTECH’s 5V C14 power adapter