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How To Find SNMP Values For Room Alert Sensors

Before you begin

Before you can work with Room Alert Monitor in your 3rd-party SNMP program, you must first take some preliminary steps:

1. Download the MIBs for your Room Alert Monitor model.

This FAQ shows you where to get your Room Alert Monitor’s MIB files: Where To Find Room Alert MIB Files.

The MIBs will download in a .zip file. Be sure to unzip the file before attempting to load the MIBs into your SNMP program.

2. Load the MIBs into your SNMP program.

Each SNMP program is different—please see the documentation for your SNMP program for instructions on loading MIBs.

3. Select the correct SNMP version in your SNMP program.

Room Alert “E” models use SNMPv1, which you’ll need to specify in your SNMP program.

Room Alert “S” models support SNMPv1, v2 and v3.

Please see your SNMP program’s documentation for instructions.

Once you’ve taken these preliminary steps, you may find a Room Alert sensor’s OID or current reading in your SNMP program. Select the tabs below for more information.

Finding Sensor OIDsFinding Current Sensor Values

To find the OIDs for any particular sensor, follow these steps:

Step 1: Expand the MIB tree.

Once you’ve loaded the MIBs for your Room Alert Monitor model, your MIB tree will look similar to that shown below for the Room Alert model 3E. Notice that Room Alert MIBs appear along this path: private→enterprises→avtech→products→<Room Alert model>:

Step 2: Expand your Room Alert model’s branches.

Next, expand the folders under the model name—in this case “roomalert3E”—to expose the leaves of the Room Alert’s tree.

Step 3: Select a leaf.

Finally, select a leaf to bring up its OID and description.

Below you see that “digital-sen1” has 3 leaves. Selecting the first leaf, “digital-sen1-1,” reveals the following information:

OID: .1.3.6.1.4.1.20916.1.9.1.1.1.1

Description: The current temperature reading in Celsius of the Internal Temperature Sensor.

Selecting the next leaf, “digital-sen1-2,” brings up the next OID and description:

OID: .1.3.6.1.4.1.20916.1.9.1.1.1.2

Description: The current temperature reading in Fahrenheit of the Internal Temperature Sensor.

The third leaf, “digital-sen1-label,” displays the following information:

OID: .1.3.6.1.4.1.20916.1.9.1.1.1.3

Description: The label of this sensor

Continue to select leaves throughout the Room Alert model’s tree to find the OIDs you need for any other sensor.

SNMP Walk

To view the current sensor readings for your Room Alert Monitor via SNMP, you may “walk” your unit in your SNMP program.

For instructions on how to perform a walk, please see your 3rd-party SNMP program’s documentation.

Room Alert Status Page Compared To SNMP Walk

Walking the Room Alert Monitor displays the same sensor values that the unit’s Status page normally displays.

Below is a sample Room Alert 3E’s sensor readings: on the left, the readings are shown in the Status page of the unit’s web interface; on the right, they are shown as the result of an SNMP walk of the unit.

Status Page

This sample Status page displays the readings for the sensors connected to a Room Alert 3E:

– Internal digital temperature sensor

– External Digital Temperature & Humidity Sensor

– External switch sensor (Room Entry)

SNMP Walk Results

This sample SNMP walk of the Room Alert 3E displays the same readings in the Value column:

SNMP always shows both temperature scales (Fahrenheit and Celsius), while the Status page shows only the scale you have selected.

This example shows 4-digit sensor values. If you prefer to receive 2-digit values in your SNMP program, you may select that setting in your Room Alert. This FAQ shows you how: How To Send SNMP Values In 2-Digit Format.

Select an option below to see a more detailed comparison of each set of sample sensor readings:

Internal Sensor Readings

The Status page of the Room Alert 3E shows the following information for the internal digital temperature sensor:

The SNMP walk of the Room Alert 3E shows the following information for the internal digital temperature sensor:

– The temperature in Celsius: 1968 = 19.68 C.

– The temperature in Fahrenheit: 6742 = 67.42 F.

– The name of the sensor: “Internal Sensor.”

External Temperature & Humidity Readings

The Status page of the Room Alert 3E shows the following information for the external digital Temperature & Humidity Sensor:

The SNMP walk of the Room Alert 3E shows the following information for the external digital Temperature & Humidity Sensor:

– The temperature in Celsius: 2230 = 22.30 C.

– The temperature in Fahrenheit: 7214 = 72.14 F.

– The relative humidity: 3208 = 32.08% RH

– The heat index in Fahrenheit: 7214 = 72.14 F.

– The heat index in Celsius: 2230 = 22.30 C.

– The name of the sensor: “Temp Humidity.”

External Switch Sensor (Room Entry)

The Status page of the Room Alert 3E shows the following information for the external switch sensor, a Room Entry Sensor:

The SNMP walk of the Room Alert 3E shows the following information for the Room Entry Sensor:

– The switch state: 1 = Closed.

– The name of the sensor: “Room Entry.”

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Room Alert is Made in the USA, ships the same day, and has been protecting facilities in over 185 countries since 1988.

Example Polling Method Properties saved in Orion SolarWinds:

If you are using this client, you should configure the general SNMPv3 Credentials, but leave the Read / Write SNMPv3 Credentials section blank.

Room Alert Link- Supported Firmware Updates



Current S modelsCurrent E models
Room Alert 32SRoom Alert 32E
Room Alert 12SRoom Alert 12E
Room Alert 4E
Room Alert 3E

Room Alert Manager - Compatible Devices

The latest version of Room Alert Manager supports only the devices below.

It does not support any legacy Room Alert or TemPageR models.

Current S modelsCurrent E models
Room Alert 32SRoom Alert 32E
Room Alert 12SRoom Alert 12E
Room Alert 3SRoom Alert 4E
Room Alert 3E
Room Alert 3W