Temperature, Humidity and Light Sensor
EM01b
Key Features
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Low Cost
Works out of the box
Attaches to a standard 10/100 Mbps Ethernet port
Embedded web server requires no extra software
Uses Ethernet port communications via standard IT components
Sensors for temperature, RH and illumination - already built in
ESBus for optional external sensors (flood monitoring etc)
Programmable email/text alerts means 24/7 monitoring*
Common Applications
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Data centres
Server/Comms Room
Building Management
Nagios Systems
3rd Party Software
(SNMP)
The EM01b Websensor is an
environmental monitoring device
designed for remotely monitoring
temperature, light and humidity in
datacentres, server rooms - or any
space that relies upon a steady
and predictable environment and
has access to the internet. The
Websensor series are sensors with
built-in signal conditioning and a
web address. Users are able to
access the sensor directly via PC
and remotely monitor the data which
can be viewed at any time through a
web-browser and receive alarms via
text or email.
The Websensor EM01b connects
directly to your Ethernet network
via a 10/100 Mbps switch or hub
port. It provides monitoring for
temperature, illumination (light level)
and relative humidity and is ideal for
monitoring environmental conditions
in server rooms and wiring closets.
It is capable of measuring DC
voltages, which allows you to check
battery supply voltages of UPS units
or renewable energy sources. The
new thermistor interface allows you
to interface external special use
sensors, such as liquid temperature
measurement and the new contact
closure detection allows you to
detect door open conditions (for
security purposes) or configure
equipment start-up and shut-down
conditions.
The EM01b has an ESbus enabling
other external sensors and displays
ES01 LCD display and ES11
flood sensor to connect to the
web for remote monitoring. Each
EM01b with its ESbus is capable
of handling up to six additional
ESbus enabled sensors using the
EShub. The EM01b is supplied
complete with cables and power
supply. All manuals and software are
downloadable from this website.
* Works with Nagios for email/text alerts
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
sales@siretta.co.uk
www.siretta.co.uk
Rev 1.3
Temperature, Humidity and Light Sensor
EM01b
Specifications
Configuration
Illumination Max (Lux)
Illumination Min (Lux)
Interface
Parameters
Measured
Power Voltage
Relative Humidity
Accuracy
Relative Humidity Max
Relative Humidity Min
SNMP
Temperature Accuracy
°C
Temperature Max °C
Temperature Min °C
Web
1000
0
Ethernet
Temperature
Relative Humidity
Light
12vDC
±5%
95%
5%
Yes
±0.2
+80
-40
Accessories
ES11 Flood Sensor
for use with EM01b websensor
The ES11 flood sensor is a unit that
connects to the EM01b series of
websensors enabling the EM01b to
be able to give an alarm message
for a flood situation or ingress of
moisture.
The ES11 is taped to the floor (or
surface to be sensed for moisture)
and is then connected to the EM01b
via the EM01b ESbus by cables
supplied with the ES11.
The ES11 is then calibrated for the
amount of moisture it is intended
to sense. The ES11 will latch
on sensing moisture until reset
regardless of moisture drying out.
All output conditions are logged on
logging software if used. Great with
Nagios. Check www.siretta.co.uk for
further details and pricing.
Magnetic contacts
for detecting when a door has
been opened or closed
Typical applications for this product
are where access to a restricted
area needs to be monitored, such
as a server room or hazardous
material store. Just connect directly
to the dry contact input of the
EM01b. Supplied with approximately
30cm of cable.
Resistance is less than 1Ω when
the contacts are closed, and greater
than 10MΩ when the contacts are
open. LCD Display for EM01b.
ES01 LCD Display
for EM01b
Real time display to show current
information on Temperature, Relative
Humidity and Light. The ES01 is a
2 line LCD display unit connected
to the EM01b via the ESbus and
displays temperature humidity
and light values that the EM01b is
measuring. The ES01 is great for
immediate viewing of the EM01b
data and is supplied with a 3m cable
to enable the ES01 to be positioned
conveniently away from the EM01b.
It is supplied with Velcro fixing.
Check www.siretta.co.uk for further
details and pricing.
ES-Bus
Connect extra flood sensors and
LCD display to the EM01b
The ES-Bus adds enhanced
flexibility to the EM01b, allowing the
user to add up to 6 extra external
sensors to the EM01b for flood
monitoring and a real-time display.
Supported Sensors Include:
Software Nagios or Desktop Monitoring
Temperature, humidity, and Light Sensor
integrated into unit or short ‘Pigtail’
Additional external temperature sensor in
THM variant on 3m cable
Available Plugins
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Nagios
Ipswich What Sign Gold
PA Server Monitor
GFI Network server monitor
Paessler IP Check server monitor
ZENOSS
Open WMS
MRTG
ES01: Real-time
Display to show
Temperature, Humidity, Light, Door
State
ES11: Spot
Flood Detector
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
sales@siretta.co.uk
www.siretta.co.uk
