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Sensatronics Frequently Asked Questions
For more than 15 years, US based Sensatronics have been designing and manufacturing environment monitoring and alerting solutions for IT, health, industrial and food industries. Open architecture renders the monitors adaptable to most customer environments.
Yes you can download them here.
Probes are available in standard lengths up to 90m. However, it is also possible to build custom length probes up to 300m.
The Sensatronics E4 unit itself does not measure temperature, you will need to add at least 1 temperature probe. The unit will take up to 4 temperature probes. The temperature probe is a thermistor device which connects back to the main unit via 2-wire cable.
We can provide UKAS certified calibration on the Sensatronics E4 base units and the probes for 3 point calibration on all parts plus certificates, the UKAS-E4CERT is the E4 calibration service and the UKAS-TCERT the probe calibration. You would need to return the base units and probes to ourselves and the turn around is about 1 week, so what you might like to do is to have one E4 calibrated at a time so that you're not completely without monitoring. Alternatively there are on-site services available from other companies
You require a copy on Intellipool Network Monitor to use to manage the Senturion, (rather than the built-in software) and the SAMBA 55 GSM modem. Alternatively, you can use an email to SMS gateway service to translate emails into SMS messages.
The Senturion is a complete unit and will allow you to monitor temperature, humidity and light, set up thresholds and send out email alerts without any additional software or probes. It will however take up to 8 additional probes and can also send SMS alerts using Intellipool (plus a GSM modem) or an email to SMS gateway service.
Yes, the EM1 boxes can be managed using any SNMP based network monitoring application, eg. SNMPc, Nagios, WhatsUp Gold, and managed from one location on your network. We recommend Intellipool Network Monitor for managing and setting up thresholds and alerts.
Yes you can connect both stationary and pan&tilt IP cameras to the Senturion, we recommend the TrendNet cameras for use with Senturion
The Sensatronics E4 is a simple temperature only monitor. It has a built-in web server so that you can view temperatures remotely. In order to set up thresholds and alerts via email, the E4 integrates with any SNMP based network monitor (you may already have something or we recommend Intellipool). You will also require at least one temperature probe, and obviously a network to connect it to!
The best solution (and the cost) really depends on precisely what you are atttempting to achieve. The Sensatronics range includes two products capable of measuring temperature, relative humidity and door open/close: the Senturion and EM1.
The Senturion is a rack mounted solution with built in temperature, light and humidity probes. You can either mount the unit in each cabinet or place a Senturion into a single cabinet and then run a combined temperature/humidity and door closure probes into the two other cabinets. You would also need a single door closure probe for the cabinet in which the Senturion is located. The Senturion is able to send email alerts, has a visual and audible alert and is capable of creating a historical log.
The Sensatronics EM1 is a wall mounted device witha built-in web interface. In order to alert you and create a historical log you would need SNMP based management software such as SNMPc, Nagios etc. We recommend Intellipool network Monitor
The Sensatronics EM1 is capable of monitoring dry contact inputs, unfortunately it cannot generate a dry contact output. The simplest and cheapest options are the AKCP SensorProbe range and the HWgroup Poseidon range.
Both ranges come in a range of sizes and prices. For advice as to precisely which product would suit your requirements best, please get in touch.
General recommendations suggest that you should not go below 10°C (50°F) or above 28°C (82°F). Although this seems a wide range these are the extremes and it is far more common to keep the ambient temperature around 20-21°C (68-71°F). However, more exploration of this subject can be found here.
I am by no means an expert on this topic but much depends on the size of the computer room, the amount of equipment you have in there, and whether you have air conditioning. Obviously, in a confined space with no ventilation or cooling, the temperature of the computer room is likely to rise, and it's the temperature that is the crucial parameter, not ventilation per se; and just as humans function best in an environment kept at around 21 degrees C, so too devices. General recommendations suggest that you should not go below 10°C (50°F) or above 28°C (82°F). Although this seems a wide range these are the extremes and it is far more common to keep the ambient temperature around 20-21°C (68-71°F). Whether you can maintain temperature with the use of ventilation alone or whether you will need some form of cooling will depend upon your particular circumstances. You will find more information here Recommended Server Room Temperature
This reading indicates that the temperature, humidity, or wetness probe for that position is not connected. One possible cause is if the line has been cut between the probe and the EM1. Check the line, and make sure you have a good connection to the unit.
This reading indicates that there is a short in the probe line; that the two probe leads are touching each other. Check the line for damage.
The Sensatronics equipment used to be called Temp Trax several years ago and many of our earlier customers still refer to the Sensatronics E4 as a Temptrax Model E. The product is the same, just the name has changed.
The Sensatronics E4 supports SNMP so you can use many different network management tools to create reports, even open source tools like Nagios and MRTG are supported. The easiest way to create reports is using Intellipool Network Monitor. You can add a number of Sensatronics E4 or many other environment monitors to be polled by Intellipool. Intellipool has a very powerful report generation facility.
The Sensatronics E4 does support SNMP v1 and so can be used with a wide variety of SNMP servers like Nagios, MRTG and a host of others. I suspect that, from a setup perspective, it is much easier using Intellipool because a number of Sensatronics (and other environment monitors) plugins are available.
Yes, with the addition of a Wetness Probe you can detect water on the floor over a wide area. The wetness probe has a long conductive rope capable of detecting water over a wide area. The probe is particularly useful for detecting water in underfloor areas such as a server room or data centre raised floor areas.
The Sensatronics EM1 supports up to 4 wetness probes. Each wetness probe can be expanded to a further 7.5 or 15m with the addition of a Wetness Probe Extension.
Yes, we supply a free Software Development Kit for the Sensatronics range of environmnet monitors including the Model F. The SDK contains a number of samples to help you get started. If you want support for writing your application we would need to charge on a per hour basis.
Each Sensatronics EM1 has its own web page that displays the current reading on each of the attached probes. In order to record the readings historically and graph the results you need management software. You can use a wide variety of management software, including many open source options like Nagios and MRTG. I would recommend you use Intellipool Network Monitor due to the fact that it is very easy to use and configure. Each Sensatronics EM1 would have its own page where you would be able to view historical charts of the readings over time. INM also includes a powerful report generator too in case you need ot create reports for your boss.
A USB device would be unsuitable for temperatures as high as 260C. You would need something such as the Sensatronics U4 and a high temperature oven probe for this type of application.
If you require a handheld thermometer with a probe take a look at the ETI models such as the 2003, which has a range up to 1000C.
It would only be possible to extend the Senturion probes over structured cabling using RJ11 to RJ45 converter and then extending, however, Senturion cables are available in a variety of lengths up to 100m and custom lengths are also available. Otherwise, other makes of environment monitor that have sensors with RJ45 connectors such as the AKCP monitors do offer the possibility of extending the cables via structured cabling (up to 300m)
The model F is designed and manufactured by a US based company called Sensatronics Inc so they are indeed compatible with US equipment. You can contact them at sales@sensatronics.com