H3531-MIB

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Description: H3531-MIB module

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What Is H3531-MIB?

H3531-MIB is a vendor MIB (associated with COMET/Comet System-style environmental sensor products, based on its object naming) for an environmental monitoring device that measures ambient conditions such as temperature and humidity along with digital relay and input status. It exposes sensor readings, computed derived values, and configurable low/high threshold settings for both temperature and humidity, plus discrete relay outputs and digital inputs. This MIB is squarely a hardware environmental-status monitoring module: it lets administrators track temperature, humidity, and a computed value against configured tempLow/tempHigh and humidityLow/humidityHigh thresholds to detect out-of-range environmental conditions in a server room, cabinet, or equipment enclosure, and it exposes relay1/relay2 outputs (often tied to alarms or fans) and input1-3 digital contacts (e.g., door or leak sensors) for broader facility monitoring. It appears to be a self-contained vendor MIB without heavy reliance on other standard MIBs. It is typically deployed on standalone environmental/temperature-humidity sensor appliances installed in data centers, network closets, or equipment racks. Engineers can download the H3531-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in H3531-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Comet System H3531 environmental monitor (temperature/humidity/relay) — Enterprise OID 22626 resolves to Comet System, confirmed by the sibling H0530-MIB module (same OID) in this round; previously left unattributed/uncertain.

Monitoring Examples

An administrator would poll temperature and humidity alongside computedValue, and compare them against the configured tempHigh, tempLow, humidityHigh, and humidityLow thresholds to detect when a server room is overheating or humidity is out of the safe range. The relay1/relay2 objects could be checked to confirm whether an alarm or cooling relay has been triggered, while input1, input2, and input3 might reflect door-open or water-leak sensor states. A temperature reading crossing tempHigh while relay1 remains untriggered would reveal a misconfigured or failed alarm relay.

What Can Be Monitored

temperature
humidity
computed sensor value
relay output status
digital input status
temperature/humidity threshold breaches

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

enterprises

How to Use in IPNetwork Monitor

Example using relay1 OID:

Select a Comet System H3531 environmental monitor (temperature/humidity/relay) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type relay1 into the Find box to locate it in the OID tree, then select it and click OK. It reports the relay 1 status. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value drifts significantly from its normal baseline, since an unexpected change often points to a real underlying issue. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
comet	1.3.6.1.4.1.22626
products	1.3.6.1.4.1.22626.1
h3531	1.3.6.1.4.1.22626.1.2
readings	1.3.6.1.4.1.22626.1.2.1
STR temperature	1.3.6.1.4.1.22626.1.2.1.1	DisplayString	read-only	Temperature
STR humidity	1.3.6.1.4.1.22626.1.2.1.2	DisplayString	read-only	Humidity
STR computedValue	1.3.6.1.4.1.22626.1.2.1.3	DisplayString	read-only	Computed value
INT relay1Ex	1.3.6.1.4.1.22626.1.2.1.5	INTEGER	read-only	Relay 1 status
INT relay2	1.3.6.1.4.1.22626.1.2.1.6	INTEGER	read-only	Relay 2 status
INT input1	1.3.6.1.4.1.22626.1.2.1.7	INTEGER	read-only	Binary Input 1
INT input2	1.3.6.1.4.1.22626.1.2.1.8	INTEGER	read-only	Binary Input 2
INT input3	1.3.6.1.4.1.22626.1.2.1.9	INTEGER	read-only	Binary Input 3
settings	1.3.6.1.4.1.22626.1.2.2
STR tempLow	1.3.6.1.4.1.22626.1.2.2.1	DisplayString	read-only	Temperature Limit Low
STR tempHigh	1.3.6.1.4.1.22626.1.2.2.2	DisplayString	read-only	Temperature Limit High
STR humidityLow	1.3.6.1.4.1.22626.1.2.2.3	DisplayString	read-only	Humidity Limit Low
STR humidityHigh	1.3.6.1.4.1.22626.1.2.2.4	DisplayString	read-only	Humidity Limit High
STR cvLow	1.3.6.1.4.1.22626.1.2.2.5	DisplayString	read-only	Computed Value Limit Low
STR cvHigh	1.3.6.1.4.1.22626.1.2.2.6	DisplayString	read-only	Computed Value Limit High
INT tempTime	1.3.6.1.4.1.22626.1.2.2.7	INTEGER	read-only	Temperature alaram delay
INT humidityTime	1.3.6.1.4.1.22626.1.2.2.8	INTEGER	read-only	Humidity alaram delay
INT cvTime	1.3.6.1.4.1.22626.1.2.2.9	INTEGER	read-only	Computed value alaram delay
STR tempHyst	1.3.6.1.4.1.22626.1.2.2.10	DisplayString	read-only	Temperature hysteresis
STR humidityHyst	1.3.6.1.4.1.22626.1.2.2.11	DisplayString	read-only	Humidity hysteresis
STR cvHyst	1.3.6.1.4.1.22626.1.2.2.12	DisplayString	read-only	Computed value hysteresis
STR relay1Alarm	1.3.6.1.4.1.22626.1.2.2.17	DisplayString	read-only	Rrelay 1 alarm
STR relay2Alarm	1.3.6.1.4.1.22626.1.2.2.18	DisplayString	read-only	Rrelay 2 alarm
STR relay1Hyst	1.3.6.1.4.1.22626.1.2.2.19	DisplayString	read-only	Relay 1 hysteresis
STR relay2Hyst	1.3.6.1.4.1.22626.1.2.2.20	DisplayString	read-only	Relay 2 hysteresis
INT relay1Time	1.3.6.1.4.1.22626.1.2.2.21	INTEGER	read-only	Relay 1 alaram delay
INT relay2Time	1.3.6.1.4.1.22626.1.2.2.22	INTEGER	read-only	Relay 2 alaram delay
INT input1Time	1.3.6.1.4.1.22626.1.2.2.23	INTEGER	read-only	Binary Input 1 alaram delay
INT input2Time	1.3.6.1.4.1.22626.1.2.2.24	INTEGER	read-only	Binary Input 2 alaram delay
INT input3Time	1.3.6.1.4.1.22626.1.2.2.25	INTEGER	read-only	Binary Input 3 alaram delay
readingsint	1.3.6.1.4.1.22626.1.2.3
INT temperaturei	1.3.6.1.4.1.22626.1.2.3.1	INTEGER	read-only	Temperature *10
INT humidityi	1.3.6.1.4.1.22626.1.2.3.2	INTEGER	read-only	Humidity *10
INT cvi	1.3.6.1.4.1.22626.1.2.3.3	INTEGER	read-only	Computed Value *10
settingsint	1.3.6.1.4.1.22626.1.2.4
INT tempLowi	1.3.6.1.4.1.22626.1.2.4.1	INTEGER	read-write	Temperature Limit Low *10
INT tempHighi	1.3.6.1.4.1.22626.1.2.4.2	INTEGER	read-write	Temperature Limit High *10
INT humidityLowi	1.3.6.1.4.1.22626.1.2.4.3	INTEGER	read-write	Humidity Limit Low *10
INT humidityHighi	1.3.6.1.4.1.22626.1.2.4.4	INTEGER	read-write	Humidity Limit High *10
INT cvLowi	1.3.6.1.4.1.22626.1.2.4.5	INTEGER	read-write	Computed value Limit Low *10
INT cvHighi	1.3.6.1.4.1.22626.1.2.4.6	INTEGER	read-write	Computed value Limit High *10
INT tempTimei	1.3.6.1.4.1.22626.1.2.4.7	INTEGER	read-write	Temperature alaram delay
INT humidityTimei	1.3.6.1.4.1.22626.1.2.4.8	INTEGER	read-write	Humidity alaram delay
INT cvTimei	1.3.6.1.4.1.22626.1.2.4.9	INTEGER	read-write	Computed value alaram delay
INT tempHysti	1.3.6.1.4.1.22626.1.2.4.10	INTEGER	read-write	Temperature hysteresis *10
INT humidityHysti	1.3.6.1.4.1.22626.1.2.4.11	INTEGER	read-write	Humidity hysteresis *10
INT cvHysti	1.3.6.1.4.1.22626.1.2.4.12	INTEGER	read-write	Computed value hysteresis *10
INT input1Timei	1.3.6.1.4.1.22626.1.2.4.17	INTEGER	read-write	Binary Input 1 alaram delay
INT input2Timei	1.3.6.1.4.1.22626.1.2.4.18	INTEGER	read-write	Binary Input 2 alaram delay
INT input3Timei	1.3.6.1.4.1.22626.1.2.4.19	INTEGER	read-write	Binary Input 3 alaram delay
traps	1.3.6.1.4.1.22626.1.2.5
STR messageString	1.3.6.1.4.1.22626.1.2.5.1	DisplayString	read-only	Message giving more detailed information on alarms.
INT alarmTemperature	1.3.6.1.4.1.22626.1.2.5.2	INTEGER	read-only	Temperature alarm 0 = Temperature OK 1 = Temperature too high 2 = Temperature too low
INT alarmHumidity	1.3.6.1.4.1.22626.1.2.5.3	INTEGER	read-only	Humidity alarm 0 = Humidity OK 1 = Humidity too high 2 = Humidity too low
INT alarmCv	1.3.6.1.4.1.22626.1.2.5.4	INTEGER	read-only	Computed value alarm 0 = Computed value OK 1 = Computed value too high 2 = Computed value too low
tables	1.3.6.1.4.1.22626.1.2.6
historyTable	1.3.6.1.4.1.22626.1.2.6.1		not-accessible	Table of the history values.
historyEntry	1.3.6.1.4.1.22626.1.2.6.1.1		not-accessible	History values entries.
INT histTemperature	1.3.6.1.4.1.22626.1.2.6.1.1.1	INTEGER	read-only	Temperature reading.
INT histHumidity	1.3.6.1.4.1.22626.1.2.6.1.1.2	INTEGER	read-only	Humidity reading.
INT histComputedValue	1.3.6.1.4.1.22626.1.2.6.1.1.3	INTEGER	read-only	Computed value reading.
INT histRelay1	1.3.6.1.4.1.22626.1.2.6.1.1.5	INTEGER	read-only	Relay 1 reading.
INT histRelay2	1.3.6.1.4.1.22626.1.2.6.1.1.6	INTEGER	read-only	Relay 2 reading.
INT histInput1	1.3.6.1.4.1.22626.1.2.6.1.1.7	INTEGER	read-only	Binary Input 1 reading.
INT histInput2	1.3.6.1.4.1.22626.1.2.6.1.1.8	INTEGER	read-only	Binary Input 2 reading.
INT histInput3	1.3.6.1.4.1.22626.1.2.6.1.1.9	INTEGER	read-only	Binary Input 3 reading.

RFC description

Environmental monitoring device (Comet H3531) tracking temperature, humidity, relay states, and binary inputs.

Start monitoring Comet System H3531 environmental monitor (temperature/humidity/relay) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download H3531-MIB