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	<title>CO2 and Air Quality Monitoring System - Senseca</title>
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	<link>https://environmental.senseca.com/measure/co2-air-quality/</link>
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	<title>CO2 and Air Quality Monitoring System - Senseca</title>
	<link>https://environmental.senseca.com/measure/co2-air-quality/</link>
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	<item>
		<title>PMsenseCR – PM and CO2 Transmitter</title>
		<link>https://environmental.senseca.com/product/pmsensecr-pm-and-co2-transmitter/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Sun, 30 Mar 2025 13:34:56 +0000</pubDate>
				<guid isPermaLink="false">https://environmental.senseca.com/?post_type=product&#038;p=16315</guid>

					<description><![CDATA[<p>Precise meausurement of Particulate Matter and CO2 for expert environments.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/pmsensecr-pm-and-co2-transmitter/">PMsenseCR – PM and CO2 Transmitter</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p><strong>PMsenseCR</strong> is a PM and optionally CO2 transmitter, ideal for pharmaceutical and high-tech cleanrooms where contamination control is critical.</p>
<p>It ensures<strong> compliance with ISO 14644 standards</strong> using laser scattering technology to detect and classify particles by size.</p>
<p data-start="472" data-end="647"><strong data-start="472" data-end="503">Reliable &amp; Maintenance-Free</strong><br data-start="503" data-end="506" />Built for long-term stability, PMsenseCR offers fast response, high sensitivity, and extended operating life—no routine maintenance required.</p>
<p data-start="649" data-end="741"><strong data-start="649" data-end="673">Optional CO₂ Sensing</strong><br data-start="673" data-end="676" />Add an integrated CO₂ sensor for comprehensive indoor monitoring.</p>
<p data-start="743" data-end="944"><strong data-start="743" data-end="774">Flexible Operation &amp; Output</strong><br data-start="774" data-end="777" />Choose between continuous or cyclic measurement modes to optimize sensor lifespan. Supports RS485 MODBUS-RTU/ASCII and 4…20 mA outputs, with five measurement channels:</p>
<ul data-start="945" data-end="1027">
<li data-start="945" data-end="961">
<p data-start="947" data-end="961">Ch.1: &gt;0.3μm</p>
</li>
<li data-start="962" data-end="978">
<p data-start="964" data-end="978">Ch.2: &gt;0.5μm</p>
</li>
<li data-start="979" data-end="995">
<p data-start="981" data-end="995">Ch.3: &gt;1.0μm</p>
</li>
<li data-start="996" data-end="1012">
<p data-start="998" data-end="1012">Ch.4: &gt;2.5μm</p>
</li>
<li data-start="1013" data-end="1027">
<p data-start="1015" data-end="1027">Ch.5: &gt;5.0μm</p>
</li>
</ul>
<p hidden="">PMBsenseCR-A; PMBsenseCR-M; PMsenseCR-A; PMsenseCR-M;</p>
<p>&nbsp;</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/pmsensecr-pm-and-co2-transmitter/">PMsenseCR – PM and CO2 Transmitter</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<item>
		<title>PMsense – Particulate Matter Transmitter</title>
		<link>https://environmental.senseca.com/product/pmsense-particulate-matter-transmitter/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Fri, 05 Mar 2021 10:17:23 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/?post_type=product&#038;p=13673</guid>

					<description><![CDATA[<p>Meausurement of exact content of PM1.0, PM2.5 and PM10. Stand-alone or easy to integrate in Automatic Weather Station. Easy Cloud Connection.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/pmsense-particulate-matter-transmitter/">PMsense – Particulate Matter Transmitter</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p><strong>PMsense</strong> is a <strong>PM1.0</strong>, <strong>PM2.5</strong> and <strong>PM10</strong> Particulate Matter transmitter with RS485 Modbus-RTU output, suitable for outdoor air quality monitoring.</p>
<p>The dust particles concentration is measured using the laser scattering principle.</p>
<p>The transmitter is maintenance-free and has fast response, high sensitivity and an excellent stability.</p>
<p>The PM sensor can be operated in two ways:</p>
<ul>
<li><strong>Continuous operating mode</strong>: the sensor is always active and measurements are continuously taken. In this mode at least 10,000 hours of PM sensor life are guaranteed.</li>
<li><strong>Discontinuous operating mode</strong> (default): the sensor is activated at regular intervals, when measurements has to be taken. This mode increases the PM sensor life.</li>
</ul>
<p>On request, an optional CO<sub>2</sub> sensor can be integrated in the trasmitter.</p>
<p>The transmitter can be supplied with up to 2 optional configurable 4…20 mA, 0…5 V or 0…10 V analog outputs.</p>
<p>More background information on why to measure Particulate Matter (PM) <a href="https://environmental.senseca.com/2020/03/23/pm-measurement-hd50pm/">can be found here.</a></p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/pmsense-particulate-matter-transmitter/">PMsense – Particulate Matter Transmitter</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>HD320A2 &#8211; CO Carbon Monoxide Probe</title>
		<link>https://environmental.senseca.com/product/hd320a2-co-carbon-monoxide-probe/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:42:17 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/hd320a2-co-carbon-monoxide-probe/</guid>

					<description><![CDATA[<p>CO probe for carbon monoxide measurement equipped with SICRAM module</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd320a2-co-carbon-monoxide-probe/">HD320A2 &#8211; CO Carbon Monoxide Probe</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>HD320A2 is a probe to be used with the<a href="https://environmental.senseca.com/product/hd32-1-thermal-microclimate-data-logger/"> HD32.1</a> Thermal Comfort data logger.</p>
<p>The probe measures the <strong>carbon monoxide concentration in air</strong>. Together with the <a href="https://environmental.senseca.com/product/hd320b2-probe-for-co2-measurement/">HD320B2</a> probe, the HD320A2 probe allows analyzing and monitoring the air quality in internal environments and detecting any loss of CO.<br />
The sensor for the measurement of CO consists of an electrochemical cell with two electrodes.</p>
<p>Measuring range 0 ÷ 500 ppm.</p>
<p>Cable length 2m equipped with SICRAM module.</p>
<p>The probe is calibrated by the company and, usually, doesn’t request any intervention by the user.</p>
<p>A magnetic support (HD320AS2) can be used for fixing the probe HD320A2 to the housing of probe HD320B2.</p>
<p>&nbsp;</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd320a2-co-carbon-monoxide-probe/">HD320A2 &#8211; CO Carbon Monoxide Probe</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>HD320B2 &#8211; CO2 Carbon Dioxide Probe</title>
		<link>https://environmental.senseca.com/product/hd320b2-co2-carbon-dioxide-probe/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:42:17 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/hd320b2-co2-carbon-dioxide-probe/</guid>

					<description><![CDATA[<p>CO<sub>2</sub> probe for carbon dioxide equipped with SICRAM module.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd320b2-co2-carbon-dioxide-probe/">HD320B2 &#8211; CO2 Carbon Dioxide Probe</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>HD320B2  is a probe to be used with the<a href="https://environmental.senseca.com/product/hd32-1-thermal-microclimate-data-logger/"> HD32.1</a> Thermal Comfort data logger.</p>
<p>The probe <strong>measures the carbon dioxide concentration in air</strong>. It’s indicated for checking and monitoring the indoor air quality. Typical applications are the check of the air quality in all the buildings where there is a crowd of people (schools, hospitals, auditoria, canteens, etc.), in the working places to optimize the comfort. CO<sub>2</sub> measurement is obtained with an infrared special sensor (NDIR technology: Non-Dispersive Infrared Technology) that, thanks to the use of a double filter and a special measurement technique, warranties precise, stable and long-term measurements. The air to check is spread inside the measurement chamber through the protection membrane placed at the top of the probe.</p>
<p>Measuring range 0 ÷ 5000 ppm. Cable length 2m equipped with SICRAM module.</p>
<p>The probe is calibrated by the company and usually doesn&#8217;t request any intervention by the user.</p>
<p>See also <a href="https://environmental.senseca.com/product/hd320a2-probe-for-co-measurement/">HD320A2</a> for CO measurement.</p>
<p>A magnetic support (HD320AS2) can be used for fixing the probe HD320A2 to the housing of probe HD320B2.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd320b2-co2-carbon-dioxide-probe/">HD320B2 &#8211; CO2 Carbon Dioxide Probe</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>RS45 &#8211; Serial Connection Cable</title>
		<link>https://environmental.senseca.com/product/rs45-serial-connection-cable-2/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:42:13 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/rs45-serial-connection-cable-2/</guid>

					<description><![CDATA[<p>Serial connection cable, not isolated, with built-in USB adapter.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/rs45-serial-connection-cable-2/">RS45 &#8211; Serial Connection Cable</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Serial connection cable, <strong>not isolated,</strong> with built-in USB adapter. USB connector for the PC and mini USB connector for the instrument serial port.</p>
<p>The instrument is powered directly by the USB port of the PC.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/rs45-serial-connection-cable-2/">RS45 &#8211; Serial Connection Cable</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>HD37.36 &#8211; Kit Connection Tube for Calibration</title>
		<link>https://environmental.senseca.com/product/hd37-36-kit-connection-tube-for-calibration-2/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:41:56 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/hd37-36-kit-connection-tube-for-calibration-2/</guid>

					<description><![CDATA[<p>Kit connection tube for calibration.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd37-36-kit-connection-tube-for-calibration-2/">HD37.36 &#8211; Kit Connection Tube for Calibration</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Connection tube kit between instrument and nitrogen cylinder for CO calibration.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd37-36-kit-connection-tube-for-calibration-2/">HD37.36 &#8211; Kit Connection Tube for Calibration</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>HD37.37 &#8211; Kit Connection Tube for Calibration</title>
		<link>https://environmental.senseca.com/product/hd37-37-kit-connection-tube-for-calibration-2/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:41:56 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/hd37-37-kit-connection-tube-for-calibration-2/</guid>

					<description><![CDATA[<p>Kit connection tube for calibration.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd37-37-kit-connection-tube-for-calibration-2/">HD37.37 &#8211; Kit Connection Tube for Calibration</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Connection tube kit between instrument and nitrogen cylinder for CO<sub>2</sub> calibration.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd37-37-kit-connection-tube-for-calibration-2/">HD37.37 &#8211; Kit Connection Tube for Calibration</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>HD37AB1347 &#8211; Datalogger for IAQ Analysis</title>
		<link>https://environmental.senseca.com/product/hd37ab1347-datalogger-for-iaq-analysis-2/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:41:51 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/hd37ab1347-datalogger-for-iaq-analysis-2/</guid>

					<description><![CDATA[<p>Datalogger for indoor air quality analysis (IAQ).</p>
<p>Measurement of airspeed, temperature, relative humidity, atmospheric pressure, CO² and CO.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd37ab1347-datalogger-for-iaq-analysis-2/">HD37AB1347 &#8211; Datalogger for IAQ Analysis</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Datalogger for <strong>indoor air quality analysis</strong> (IAQ).</p>
<p>The instrument measures the quantities: airspeed, temperature, relative humidity, atmospheric pressure, CO<sub>2</sub> (Carbon Dioxide) <strong>and CO</strong> (Carbon Monoxide) by using <a href="https://environmental.senseca.com/product/p37ab147-combined-probe-for-iaq/">P37AB147</a> probe.</p>
<p>The SICRAM hotwire air speed probes, vane air speed probes, temperature probes, relative humidity and temperature combined probes can also be connected to the instrument.</p>
<p>Memory capacity of 67,600 records for each of the two inputs. Logging interval from 15 seconds to 1 hour.</p>
<p>The kit consists of: HD37AB1347 instrument, 4 rechargeable 1.2 V AA NiMH batteries, instruction manual, carrying case and Deltalog9 software <a href="https://environmental.senseca.com/support/software/deltalog-9/">downloadable here.</a></p>
<p>Probes and cables must be ordered separately.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd37ab1347-datalogger-for-iaq-analysis-2/">HD37AB1347 &#8211; Datalogger for IAQ Analysis</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>P37AB147 &#8211; Combined Probe for IAQ</title>
		<link>https://environmental.senseca.com/product/p37ab147-combined-probe-for-iaq-2/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 05 Oct 2020 13:41:51 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/p37ab147-combined-probe-for-iaq-2/</guid>

					<description><![CDATA[<p>Temperature, RH, atmospheric pressure, CO2 and CO combined probe</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/p37ab147-combined-probe-for-iaq-2/">P37AB147 &#8211; Combined Probe for IAQ</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Temperature, relative humidity, atmospheric pressure, CO<sub>2</sub> (Carbon Dioxide) and CO (Carbon Monoxide) combined probe, complete with SICRAM module.</p>
<p>To be used in combination with <a href="https://environmental.senseca.com/product/hd37ab1347-datalogger-for-iaq-analysis/">HD37AB1347</a> for anlaysis of Indoor Air Quality.</p>
<p>Probe dimensions: 275mm x 45mm x 40mm. Connection cable length 2m.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/p37ab147-combined-probe-for-iaq-2/">P37AB147 &#8211; Combined Probe for IAQ</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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		<title>HD31 &#8211; Handheld Portable Multifunction Data Logger</title>
		<link>https://environmental.senseca.com/product/hd31-handheld-portable-multifunction-data-logger/</link>
		
		<dc:creator><![CDATA[Senseca]]></dc:creator>
		<pubDate>Mon, 14 Sep 2020 15:25:24 +0000</pubDate>
				<guid isPermaLink="false">https://www.deltaohm.com/product/hd31-handheld-portable-multifunction-data-logger/</guid>

					<description><![CDATA[<p>Three independent input channels Automatic recognition of the probes - Measurement of Temperature Relative Humidity Atmospheric and differential pressure Air Speed Illuminance (lux) and Irradiance Carbon dioxide (CO2) – Air Quality Direct voltage (VP473 module) and current (IP472 module).</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd31-handheld-portable-multifunction-data-logger/">HD31 &#8211; Handheld Portable Multifunction Data Logger</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>The <strong>HD31</strong> is a portable multifunctional instrument and datalogger with a large (43 x 58 mm) colour graphic LCD display.<br />
It has <strong>three independent inputs</strong>. Both single and combined SICRAM probes can be connected to each input to measure a variety of physical quantities:</p>
<ul>
<li> Temperature</li>
<li>Relative humidity</li>
<li>Atmospheric and differential pressure</li>
<li> Air speed</li>
<li>Illuminance (lux) and Irradiance</li>
<li>Carbon dioxide (CO<sub>2</sub>) – Air Quality</li>
<li>Direct voltage (VP473 module) and current (IP472 module)</li>
</ul>
<p>Sampling speed one per second each channel. Storage capacity 32,000 samples per channel.</p>
<p>Functions: CLOCK, HOLD, RELATIVE, DIFFERENCE, MINIMUM, MAXIMUM, AVERAGE. Simultaneous display of three measurements. Calibration of the individual probes with permanent storage of the calibration data inside the probe: probes can be changed without losing the calibration.</p>
<p>The instrument allows the input of various types of probe of different physical quantities. Platinum probes (25, 100, 500 Ω at 0 °C), Thermocouples K, J, E, T, N, R, S, B probes, combined R.H. and temperature, pressure also barometric one, air velocity, light, CO<sub>2 , </sub>mV and mA probes can be connected.</p>
<p>Centesimal temperature measurements can be carried out by PRT sensors in the range –200…+350°C, and decimal in the range +350…+850 °C.</p>
<p>The post <a rel="nofollow" href="https://environmental.senseca.com/product/hd31-handheld-portable-multifunction-data-logger/">HD31 &#8211; Handheld Portable Multifunction Data Logger</a> appeared first on <a rel="nofollow" href="https://environmental.senseca.com">Senseca</a>.</p>
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