{"title":"SmartReader Plus Family","description":"\u003cp\u003eACR SmartReader Plus Family of data loggers.\u003c\/p\u003e","products":[{"product_id":"smartreader-plus-1","title":"SmartReader Plus 1","description":"\u003cp\u003eIdeal for quick and accurate temperature recordings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Typical applications include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHVAC system testing and balancing\u003c\/li\u003e\n\u003cli\u003eFood process verification\u003c\/li\u003e\n\u003cli\u003ePharmaceutical manufacturing and Vaccine storage\u003c\/li\u003e\n\u003cli\u003eCold-chain monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEquipped with one internal ambient temperature channel\u003c\/li\u003e\n\u003cli\u003eExternal temperature sensor (thermistor) can be up to 100 feet in length\u003c\/li\u003e\n\u003cli\u003eNetwork up to 10 various SRP data loggers\u003c\/li\u003e\n\u003cli\u003eCan be calibrated to NIST standards.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACR Systems","offers":[{"title":"128 KB (01-0112)","offer_id":37838667907243,"sku":"01-0112","price":827.0,"currency_code":"USD","in_stock":true},{"title":"1.5 MB (01-0141)","offer_id":37838667940011,"sku":"01-0141","price":1252.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0509\/2304\/5035\/products\/2758_400_300_0-1.jpg?v=1610170618"},{"product_id":"smartreader-plus-4","title":"SmartReader Plus 4 – Single-Port Pressure Data Logger","description":"\u003ch3 data-end=\"501\" data-start=\"425\"\u003eDesigned for Pressure Trend Monitoring in Air and Compressed Air Systems\u003c\/h3\u003e\n\u003cp data-end=\"855\" data-start=\"503\"\u003eThe SmartReader Plus 4 is a single-port pressure data logger designed to capture how air and compressed air systems behave over time. Rather than providing a momentary snapshot, it records pressure trends—along with temperature and optional humidity—so technicians and engineers can diagnose issues that only appear under real operating conditions.\u003c\/p\u003e\n\u003cp data-end=\"1004\" data-start=\"857\"\u003eIt is well suited for applications where understanding changes, patterns, and system response is more important than a single absolute reading.\u003c\/p\u003e\n\u003chr data-end=\"1009\" data-start=\"1006\"\u003e\n\u003ch3 data-end=\"1057\" data-start=\"1011\"\u003eSingle-Port Pressure Measurement Explained\u003c\/h3\u003e\n\u003cp data-end=\"1393\" data-start=\"1059\"\u003eThe SmartReader Plus 4 uses a single pressure port, meaning it measures pressure relative to ambient atmospheric pressure (gauge or absolute, depending on the selected model). This approach is ideal for trend-based diagnostics, where the goal is to observe how pressure rises, falls, or fluctuates as system conditions change.\u003c\/p\u003e\n\u003cp data-end=\"1704\" data-start=\"1395\"\u003eBecause it measures pressure at a single point, the SmartReader Plus 4 does not directly measure true differential pressure between two locations. Instead, it provides valuable insight into system behavior by showing how pressure at a given point responds over time to loading, airflow changes, or demand.\u003c\/p\u003e\n\u003chr data-end=\"1709\" data-start=\"1706\"\u003e\n\u003ch3 data-end=\"1762\" data-start=\"1711\"\u003ePressure Range Options and Typical Applications\u003c\/h3\u003e\n\u003cp data-end=\"1882\" data-start=\"1764\"\u003eThe SmartReader Plus 4 is available in multiple pressure ranges to suit different air and compressed air applications.\u003c\/p\u003e\n\u003cp data-end=\"2003\" data-start=\"1884\"\u003e\u003cstrong\u003e0–10 inches water column (inWC)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2003\" data-start=\"1884\"\u003eThis range is best suited for airflow-related pressure measurements, such as:\u003c\/p\u003e\n\u003cul data-end=\"2173\" data-start=\"2004\"\u003e\n\u003cli data-end=\"2046\" data-start=\"2004\"\u003e\n\u003cp data-end=\"2046\" data-start=\"2006\"\u003ePressure drop trends across HVAC filters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2086\" data-start=\"2047\"\u003e\n\u003cp data-end=\"2086\" data-start=\"2049\"\u003eCoil and heat exchanger pressure drop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2128\" data-start=\"2087\"\u003e\n\u003cp data-end=\"2128\" data-start=\"2089\"\u003eDuct static pressure (supply or return)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2173\" data-start=\"2129\"\u003e\n\u003cp data-end=\"2173\" data-start=\"2131\"\u003eFan and air system performance diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2326\" data-start=\"2175\"\u003eThis range is intended for airflow-induced pressures and system diagnostics—not for pneumatic control air or fine building pressurization measurements.\u003c\/p\u003e\n\u003cp data-end=\"2391\" data-start=\"2328\"\u003e\u003cstrong\u003e5 PSI and 30 PSI models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2391\" data-start=\"2328\"\u003eThese models are well suited for:\u003c\/p\u003e\n\u003cul data-end=\"2508\" data-start=\"2392\"\u003e\n\u003cli data-end=\"2419\" data-start=\"2392\"\u003e\n\u003cp data-end=\"2419\" data-start=\"2394\"\u003ePneumatic control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2455\" data-start=\"2420\"\u003e\n\u003cp data-end=\"2455\" data-start=\"2422\"\u003eLow-pressure compressed air lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2508\" data-start=\"2456\"\u003e\n\u003cp data-end=\"2508\" data-start=\"2458\"\u003eActuators, regulators, and control air diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2641\" data-start=\"2510\"\u003eThey align with typical pneumatic operating pressures and provide useful resolution for troubleshooting and performance evaluation.\u003c\/p\u003e\n\u003cp data-end=\"2706\" data-start=\"2643\"\u003e\u003cstrong\u003e100 PSI and 150 PSI models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2706\" data-start=\"2643\"\u003eThese models are intended for:\u003c\/p\u003e\n\u003cul data-end=\"2842\" data-start=\"2707\"\u003e\n\u003cli data-end=\"2742\" data-start=\"2707\"\u003e\n\u003cp data-end=\"2742\" data-start=\"2709\"\u003eIndustrial compressed air systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2781\" data-start=\"2743\"\u003e\n\u003cp data-end=\"2781\" data-start=\"2745\"\u003eEquipment supply pressure monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2842\" data-start=\"2782\"\u003e\n\u003cp data-end=\"2842\" data-start=\"2784\"\u003eCompressor, regulator, and distribution system diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2915\" data-start=\"2844\"\u003eThey are ideal for plant air systems operating in the 60–150 PSI range.\u003c\/p\u003e\n\u003chr data-end=\"2920\" data-start=\"2917\"\u003e\n\u003ch3 data-end=\"2967\" data-start=\"2922\"\u003eTemperature and Optional Humidity Context\u003c\/h3\u003e\n\u003cp data-end=\"3311\" data-start=\"2969\"\u003eIn addition to pressure, the SmartReader Plus 4 includes an internal ambient temperature sensor and supports an optional remote temperature and humidity probe. This allows pressure data to be viewed in the context of environmental conditions, which can be helpful when diagnosing air system behavior influenced by temperature or moisture.\u003c\/p\u003e\n\u003chr data-end=\"3316\" data-start=\"3313\"\u003e\n\u003ch3 data-end=\"3360\" data-start=\"3318\"\u003eLow-Pressure Differential Applications\u003c\/h3\u003e\n\u003cp data-end=\"3636\" data-start=\"3362\"\u003eFor applications involving very small pressure differences or true differential pressure measurement, such as building pressurization, room-to-room pressure relationships, or cleanroom and healthcare environments, a dedicated differential pressure logger is recommended. For this, ACR offers the \u003ca href=\"https:\/\/www.acrdatasolutions.com\/products\/smartreader-plus-4-lpd\"\u003eSmartReader Plus 4 LPD\u003c\/a\u003e, a dual-port low-pressure differential data logger designed specifically for these applications. The LPD model is available in pressure ranges from 0.5 inches to 10 inches of water column and uses separate high (+) and low (–) pressure ports to measure true differential pressure.\u003c\/p\u003e\n\u003cp data-end=\"4158\" data-start=\"3966\"\u003eIn these cases, the SmartReader Plus 4 LPD is the appropriate choice when the pressure difference itself, rather than a single-point pressure trend, is the primary measurement of interest.\u003c\/p\u003e","brand":"ACR Systems","offers":[{"title":"5G - 128 KB (01-0115)","offer_id":37839099986091,"sku":"01-0115","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"30A - 128 KB (01-0116)","offer_id":37839100018859,"sku":"01-0116","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"30G - 128 KB (01-0117)","offer_id":37839100051627,"sku":"01-0117","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"100A - 128 KB (01-0118)","offer_id":37839100084395,"sku":"01-0118","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"100G - 128 KB (01-0119)","offer_id":37839100117163,"sku":"01-0119","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"10 WC - 128 KB (01-0120)","offer_id":37839100149931,"sku":"01-0120","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"150G - 128 KB (01-0139)","offer_id":37839104377003,"sku":"01-0139","price":1331.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0509\/2304\/5035\/products\/2558_400_300_0-1.jpg?v=1610171374"},{"product_id":"smartreader-plus-4-lpd","title":"SmartReader Plus 4 LPD Low Pressure Differential Logger","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eUnderstanding Low Pressure Differential Measurements\u003c\/h3\u003e\n\u003cp\u003eLow pressure differential measurements are commonly used to evaluate how air moves through buildings and HVAC systems. These small pressure differences—often measured in inches of water column—help indicate whether spaces are positively or negatively pressurized, how effectively air is distributed through ductwork, and how systems respond under real operating conditions.\u003c\/p\u003e\n\u003cp\u003eBecause these effects are often subtle and time-dependent, spot measurements alone may not reveal the full picture.\u003c\/p\u003e\n\u003ch3\u003eLogging Pressure Trends Over Time\u003c\/h3\u003e\n\u003cp\u003eThe SmartReader Plus 4 LPD is designed to record low pressure differential continuously over extended periods. By capturing pressure trends over hours, days, or weeks, the logger helps reveal system behavior during occupied and unoccupied periods, equipment cycling, and changing environmental conditions.\u003c\/p\u003e\n\u003cp\u003eThis time-based view allows users to identify patterns, verify system performance, and diagnose issues that would be difficult to detect with handheld instruments.\u003c\/p\u003e\n\u003ch3\u003eBuilt-In Sensors for Contextual Analysis\u003c\/h3\u003e\n\u003cp\u003eThe SmartReader Plus 4 LPD incorporates an internal low pressure differential sensor along with an internal temperature sensor. Recording temperature alongside pressure provides important context when analyzing data, helping distinguish true system changes from effects related to thermal variation or operating schedules.\u003c\/p\u003e\n\u003cp\u003eThis combination is particularly useful in HVAC and building performance applications, where temperature and pressure are closely linked.\u003c\/p\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cp\u003eThe SmartReader Plus 4 LPD is commonly used in applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eRoom-to-room and building pressurization studies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerification of positive or negative pressure in critical spaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC commissioning and re-commissioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTesting and balancing (TAB) verification\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC duct static pressure monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAirflow analysis when used with differential pressure-based measurement methods\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTroubleshooting comfort complaints, drafts, or infiltration issues\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSelecting the Appropriate Pressure Range\u003c\/h3\u003e\n\u003cp\u003eMultiple low pressure ranges are available, allowing the logger to be matched to the application:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLower pressure ranges are typically used for room-level and building pressurization measurements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigher pressure ranges, such as ±10 inWC, are commonly used for HVAC duct static pressure monitoring and airflow analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSelecting the appropriate range improves resolution and measurement accuracy while ensuring reliable operation under expected pressure conditions.\u003c\/p\u003e\n\u003ch3\u003eDesigned for Temporary Studies and Field Use\u003c\/h3\u003e\n\u003cp\u003eCompact, self-contained, and battery powered, the SmartReader Plus 4 LPD is well suited for temporary studies, commissioning work, and troubleshooting tasks where reliable pressure trend data is required without permanent installation. Magnetic mounting and simple pressure connections make the logger easy to deploy in the field and remove once a study is complete.\u003c\/p\u003e","brand":"ACR Systems","offers":[{"title":"LPD-0.5\" - 32 KB (01-0310)","offer_id":37839112994987,"sku":"01-0310","price":925.0,"currency_code":"USD","in_stock":true},{"title":"LPD-1\" - 32 KB (01-0311)","offer_id":37839113027755,"sku":"01-0311","price":925.0,"currency_code":"USD","in_stock":true},{"title":"LPD-2\" - 32 KB (01-0312)","offer_id":37839113093291,"sku":"01-0312","price":925.0,"currency_code":"USD","in_stock":true},{"title":"LPD-5\" - 32 KB (01-0313)","offer_id":37839113126059,"sku":"01-0313","price":925.0,"currency_code":"USD","in_stock":true},{"title":"LPD-10\" - 32 KB (01-0314)","offer_id":37839113060523,"sku":"01-0314","price":925.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0509\/2304\/5035\/products\/2702_400_300.jpg?v=1610171601"},{"product_id":"smartreader-plus-9","title":"SmartReader Plus 9 - Two-Channel Pulse Logger","description":"\u003cp\u003eThe SmartReader Plus 9 (SRP-9) is a two-channel pulse and event data logger designed to count and record\u003cstrong\u003e \u003c\/strong\u003eswitch contact closures and DC voltage pulses over time. Rather than measuring continuous analog values, the SRP-9 records discrete events, making it well suited to applications where activity, usage, or frequency must be tracked and analyzed.\u003c\/p\u003e\n\u003cp\u003eEach channel independently counts incoming pulses during a user-defined sampling interval and stores the total count with a time stamp. This approach allows users to evaluate rates, totals, and patterns of activity without requiring continuous high-speed data capture.\u003c\/p\u003e\n\u003cp\u003eThe SRP-9 supports both dry contact inputs (such as relay or reed switch closures) and active logic-level pulse signals, providing flexibility when interfacing with common sensors, meters, and control outputs.\u003c\/p\u003e\n\u003ch2\u003eHow Pulse Counting Works\u003c\/h2\u003e\n\u003cp\u003eThe SmartReader Plus 9 continuously monitors each input channel and increments an internal counter whenever a valid pulse or contact closure is detected. At the end of each sampling interval, the total number of pulses counted during that interval is recorded in memory.\u003c\/p\u003e\n\u003cp\u003eEach channel can record up to 4,095 pulses per sampling interval. The maximum allowable pulse rate therefore depends on the selected interval. If the number of pulses exceeds this limit during an interval, the recorded value is capped at 4,095.\u003c\/p\u003e\n\u003cp\u003eSelectable fast and slow input modes allow the logger to accommodate a wide range of pulse widths, from mechanical switch closures to higher-speed electronic pulse outputs.\u003c\/p\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cp\u003eThe SmartReader Plus 9 is commonly used in applications where sensors or systems produce pulse-based outputs that represent real-world events or activity levels, including:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlow and volume monitoring\u003c\/strong\u003e\u003cbr\u003eCounting pulse outputs from water, gas, or air flow meters to track consumption, verify system operation, or identify changes in flow behavior over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEquipment runtime and cycle counting\u003c\/strong\u003e\u003cbr\u003eLogging relay or switch closures from pumps, compressors, fans, motors, or other machinery to measure run time, start counts, or duty cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRotational speed and motion monitoring\u003c\/strong\u003e\u003cbr\u003eRecording pulses from proximity sensors, optical sensors, or encoders to analyze shaft rotation, RPM trends, or mechanical activity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental event monitoring\u003c\/strong\u003e\u003cbr\u003eCounting tipping-bucket rain gauge events or anemometer pulses to quantify rainfall or wind activity over defined intervals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTraffic and occupancy counting\u003c\/strong\u003e\u003cbr\u003eCounting vehicles or pedestrians using pulse or contact-closure outputs from pneumatic road tubes, inductive loop detectors, infrared beam sensors, gates, or turnstiles. The SRP-9 is suited to traffic-volume and pattern analysis where each event generates one or more pulses and overall counts per sampling interval remain within the logger’s capacity.\u003c\/p\u003e\n\u003ch2\u003eSetup and Data Collection\u003c\/h2\u003e\n\u003cp\u003eThe SmartReader Plus 9 is configured and read using TrendReader® software. Users select the sampling interval, input mode, and channel configuration, then verify operation using real-time readings before deployment.\u003c\/p\u003e\n\u003cp\u003eOnce installed, the logger operates unattended, storing time-stamped pulse counts in non-volatile memory. Data can be downloaded to a PC for analysis, reporting, or archival purposes.\u003c\/p\u003e\n\u003ch2\u003eApplication Considerations\u003c\/h2\u003e\n\u003cp\u003eThe SmartReader Plus 9 is optimized for event counting and trend analysis. It is not intended for applications requiring pulse-by-pulse waveform capture, vehicle classification, or extremely high-frequency counting beyond the per-interval limits of the logger.\u003c\/p\u003e\n\u003cp\u003eSelecting an appropriate sampling interval is essential to ensure accurate results and avoid exceeding maximum counts during any given interval.\u003c\/p\u003e","brand":"ACR Systems","offers":[{"title":"Default Title","offer_id":37804123914411,"sku":"01-0130","price":1262.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0509\/2304\/5035\/products\/2366_400_300.jpg?v=1610172528"},{"product_id":"smartreader-plus-10","title":"RTD Data Logger for Cryogenic and High-Temperature Monitoring","description":"\u003cp data-start=\"1259\" data-end=\"1632\"\u003eThe SmartReader Plus 10 (SRP-10) is a proven RTD data logger built for research, QA, and temperature-critical industrial applications. With four total channels — three external RTD inputs and one internal thermistor channel — the SRP-10 delivers the accuracy, flexibility, and ruggedness required in industries where reliable temperature monitoring is non-negotiable.\u003c\/p\u003e\n\u003ch3 data-start=\"1634\" data-end=\"1660\"\u003eSupported RTD Types\u003c\/h3\u003e\n\u003cul data-start=\"1661\" data-end=\"1930\"\u003e\n\u003cli data-start=\"1661\" data-end=\"1736\"\u003e\n\u003cp data-start=\"1663\" data-end=\"1736\"\u003e\u003cstrong data-start=\"1663\" data-end=\"1679\"\u003e2-wire RTDs:\u003c\/strong\u003e Supported, though lead resistance may introduce error.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1737\" data-end=\"1835\"\u003e\n\u003cp data-start=\"1739\" data-end=\"1835\"\u003e\u003cstrong data-start=\"1739\" data-end=\"1755\"\u003e3-wire RTDs:\u003c\/strong\u003e Common in industrial use; compensates for lead resistance in balanced wiring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1836\" data-end=\"1930\"\u003e\n\u003cp data-start=\"1838\" data-end=\"1930\"\u003e\u003cstrong data-start=\"1838\" data-end=\"1854\"\u003e4-wire RTDs:\u003c\/strong\u003e Recommended for highest accuracy; eliminates lead resistance effects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1932\" data-end=\"2051\"\u003eAny platinum RTD probe with a Temperature Coefficient of Resistance (TCR) of 0.00385 can be used with the SRP-10.\u003c\/p\u003e","brand":"ACR Systems","offers":[{"title":"Default Title","offer_id":37804123979947,"sku":"01-0132","price":1262.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0509\/2304\/5035\/products\/2358_400_300.jpg?v=1610170794"}],"url":"https:\/\/www.acrdatasolutions.com\/collections\/smartreader-plus-family.oembed","provider":"ACR Systems","version":"1.0","type":"link"}