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Temperature and Humidity data logger with Ethernet

iSD-TH Series

Temperature and Humidity data logger with Ethernet | iSD-TH Series

Temperature and Humidity data logger with Ethernet

£655.41 iSD-TH

  • Humidity and temperature data logger with Ethernet interface for Virtual Chart Recording
  • Web Server
  • Alarms by Email or Text Message
  • No Special Software Required
  • Record Years of Data on Popular SD Cards
USB, RS232, RS485 and Ethernet Data Acquisition Systems - View related products


The humidity and temperature data logger with Ethernet OMEGA™ iSD provides Web-based remote surveillance of environmental conditions in critical HVAC applications such as computer server rooms, clean rooms, laboratories, museums, warehouses, or any remote facility. View and record Temperature, Relative Humidity and Dew Point over an Ethernet network or the Internet with no special software—just a Web browser.

Email Alarms
The device can trigger an alarm if temperature or humidity goes above or below a set point that you determine. Your alarm can be sent by email to a single user or to a group distribution list, including text messages to mobile phones and PDA’s.

Physical Threats
The OMEGA iSD includes screw terminals for two contact closures that work with common alarm sensors. You can instruct the iSD monitor to send an alarm if a door is opened, a window is broken, or a fire sprinkler goes off.

Power Failure
The iSD monitor can trigger an alarm if the AC power fails. The iSD monitor will continue to collect data for two days powered by a standard 9 Volt alkaline battery (included). A failure on the Ethernet network will not interrupt data recording.

Local Alarms
The OMEGA iSD monitor includes two 1.5 Amp output relays that are controlled by the alarm conditions you select. The relays can trigger flashing lights and a siren for example to alert personnel near the scene. With the easy Web-based setup page, the two relays can be programmed for any combination of temperature or humidity, and high or low set points, as well as alarm conditions triggered by contact closures. The relays can also be programmed to turn off when conditions return to normal, or programmed to remain latched and require a manual reset.

View Charts and Graphs on the Web
Temperature and humidity charts through Ethernet The OMEGA iSD serves Active Web Pages to display real time readings, display charts of temperature and humidity, or log data in standard data formats for use in a spreadsheet or data acquisition program such as Excel or Visual Basic.
The virtual chart viewed on the web page is a JAVATM Applet that records a chart over the LAN or Internet in real time. With the OMEGA iSD, there is no need to invest time and money learning a proprietary software program to log or chart the data.
Chart scales are fully adjustable on the fly. For example, the chart can display one minute, one hour, one day, one week, one month or one year.
Temperature and humidity can be charted across the full span (-40 to 124°C, and 0 to 100% RH) or within any narrow range such as (20 to 30°C).

Link to Web CAM or IP Camera
The Web page includes a link to a "Web Cam" or "IP camera" (not included). If you get a message about an alarm condition, you can quickly click on the link to view the actual scene over the Internet.

SD Flash Memory Card
The iSD comes complete with a removable 2 GB SD Flash Memory card that can store up to seven years of readings taken at ten second intervals.
Records on SD Flash Cards The data is recorded on widely available SD (Secure Digital) flash cards. The format is a simple “.txt” text file that is easily imported to spread sheets and other programs. It can be read directly on a PC or MAC with a USB card reader. You can also download the data remotely over an Temperature and himidy data logger with SD cardEthernet network or the Internet.

Sensor and Calibration
The iSD monitors come complete with a plug-in temperature and humidity probe that mounts on the instrument or separately with the six foot extension cable (included). It is not necessary to take the iSD monitor out of service for routine calibration. The temperature/ humidity sensors are interchangeable and can be replaced for about the same cost as a typical calibration.
OMEGA offers replacement sensors with optional 3-point traceable calibration certificates. Installation and operation of the OMEGA iSD monitor requires no special training, tools, or software. The device connects to any Ethernet network with standard cable and plugs and is powered by any AC outlet supplying 110 to 240 Vac.

Award-Winning Technology
The OMEGA iSD is simple to install and use, and features OMEGA’s award-winning iServer technology that requires no special software except a Web Browser.
The iSD connects to an Ethernet Network with a standard RJ45 connector and sends data in standard TCP/IP packets. It is easily configured with a simple menu using a Web Browser and can be password protected. From within an Ethernet LAN or over the Internet, the user simply types its IP address or an easy to remember name such as "Cleanroom 5" or "Server Room" in any Web Browser, and the iSD serves a Web Page with the current readings.

Typical Applications
The OMEGA iSD is great for monitoring temperature + humidity in applications such as: clean rooms, computer rooms, HVAC systems, pharmaceutical and food processing and storage, hospitals, laboratories, semiconductor fabs, electronic assembly, warehousing, museums, manufacturing, greenhouses, farm animal shelters, and many more.
OMEGA iServer products are designed and manufactured in the USA.

Relative Humidity Sensor

Accuracy/Range at 25°C- Non-Condensing: ±2.75% for 10 to 90%; ±3% for 5 to 10% and 90 to 95%; ±4% for 0 to 5% and 95 to 100%
Non-linearity: ±3%
Hysteresis: ±1% RH
Response Time: 8 seconds, tau 63%
Repeatability: ±0.1%
Resolution: 0.1%, 12 bit
Temperature Sensor Accuracy/Range*
    Wand Probe: ±0.5°C (±1°F) for 5 to 45°C (41 to 113°F); ±0.5 to ±1°C (±1 to ±2°F) for 0 to 5°C and 45 to 60°C (32 to 41°F and 113 to 140°F)
    Industrial Probe: (see chart in manual) ±0.5°C (±1°F) for 5 to 45°C (41 to 113°F); ±0.5 to ±1.5°C (±1 to ±2.7°F) for -40 to 5°C and 45 to 124°C (-40 to 41°F and 113 to 255°F)
*Note: extended temperature range is for Ind. probe only, the iServer’s operating temperature is 0 to 60°C
Response Time: 5 to 30 secs, tau 63%
Repeatability: ±0.1°C
Resolution: 0.1°C, 14 bit
Standard Probe Dimensions: Ø13 x 83.8 mm L (Ø 0.5 x 3.3" L)
Industrial Probe iSD-THP-5
Ø16 x 137 mm L (0.63 x 5" L)
Housing Material: SS 316
Cable Length: 3 m (10')
Cable Operating Temperature: -40 to 125°C (-40 to 257°F)
Ethernet (RJ45):
Fixed or autonegotiating 10/100BASE-T, Auto MDI/MDIX
Sensor: Digital 4-wire (DB9)
Protocols: TCP, UDP, SNMP, SMTP, NTP, ARP, ICMP, DHCP, DNS, HTTP, and Telnet
LCD Display: 32 digits 4.8 x 9.7 mm (0.19 x 0.38")
SD Flash Memory Card
2 GB Card:
8 months of data storage at 1 second recording intervals or 7 years at 10 second intervals
Relay Outputs: Two relays 1.5A @ 30 Vdc
Alarm I/Os: Two contact inputs TTL 0.5mA with 10K pull-up; one open collector output 150mA @ 30Vdc
Embedded WEB Server: Serves WEB pages containing real-time data and live updated charts within definable time intervals
9 to 12 Vdc
AC Power Adaptor (Included):
    Input: 100 to 240 Vac, 50/60Hz
    Nominal Output: 9 Vdc @ 0.5 A
Consumption:4W max.
Back-Up Battery: 9 Vdc, Alkaline (included)
Operating Temperature:
    iServer Unit: 0 to 60°C (32 to 140°F)
    Battery: -18 to 55°C (0 to 131°F)
    ac Adapter: 0 to 40°C (32 to 104°F)
490 g (1.08 lb)
Material: SS 304 case with wall mount bracket
Place Order(Specify Model Number)
Part Number/ Desc.
Availability: In Stock
Temperature + humidity data logger, Ethernet, standard probe, 1.8 m (6') extension cable
Availability: 14 weeks
iSD-TH with calibration certificate traceable to NIST
Availability: 14 weeks
Temperature + humidity data logger, Ethernet, 137 mm (5") industrial probe with 3 m (10') cable
Availability: 14 weeks
Replacement standard right angle probe
Availability: 2 weeks
Replacement industrial 127 mm (5") probe, cable 3 m (10')
Consult Sales  
Polyethylene probe cap for wet environments
Availability: 8 weeks
Porous stainless steel probe cap, 5 µm porosity, for dusty and pressurized (less than 35 psi) environments
For Calibrated Replacement Probes, Including Calibration Certificate
Availability: 14 weeks
Standard right angle probe and NIST traceable calibration certificate
Availability: 14 weeks
Industrial probe and NIST traceable calibration certificate
All amounts shown in EUR, GBP, or USD
Note: Comes complete with LCD display, 2 GB SD flash memory card, 2 relay alarms, battery back-up, universal 100 to 240 Vac power adaptor and operator’s manual.
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