{"product_id":"tenmars-tm-217-quantum-par-meter-lux-meter","title":"TENMARS TM-217 Quantum PAR Meter and Lux Meter","description":"\u003ch2\u003eTENMARS TM-217 Quantum PAR Meter and Lux Meter in Sri Lanka\u003c\/h2\u003e\n\n\u003ch3\u003eProfessional PPFD, PAR, Lux, Foot-Candle and Candela Measurement\u003c\/h3\u003e\n\n\u003cp\u003e\nThe \u003cstrong\u003eTENMARS TM-217 Quantum Meter\u003c\/strong\u003e is a multifunctional photosynthetically active radiation (PAR) meter and digital light meter designed to measure photosynthetic photon flux density (PPFD), illuminance, and luminous intensity. It measures plant-usable light in the 400–700 nm PAR range, making it suitable for LED grow lights, greenhouses, horticultural research, indoor farming, laboratories, and aquarium lighting assessments.\n\u003c\/p\u003e\n\n\u003cp\u003e\nIn addition to PPFD measurements in \u003cstrong\u003eµmol\/m²\/s\u003c\/strong\u003e, the TM-217 measures illuminance in \u003cstrong\u003elux\u003c\/strong\u003e and \u003cstrong\u003efoot-candles\u003c\/strong\u003e, as well as luminous intensity in \u003cstrong\u003ecandela\u003c\/strong\u003e. Its separate PPFD and illuminance sensor functions allow users to evaluate both horticultural lighting performance and general visible-light levels with one portable instrument.\n\u003c\/p\u003e\n\n\u003cp\u003e\nDiscover our complete selection of \u003ca href=\"\/collections\/lux-meter\" target=\"_blank\"\u003eQuantum PAR Meters and Full-Spectrum Light Meters – specifications, features, and plant-light measurement instruments in Sri Lanka!\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\nWith data logging for up to 50,000 records, USB connectivity, adjustable logging intervals, maximum\/minimum hold, four- or five-point averaging, transmittance measurement, comparator mode, illuminance integration, and Daily Light Integral (DLI) measurement, the TENMARS TM-217 is well suited to both field measurements and long-term lighting analysis.\n\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003cdl class=\"package-list\"\u003e\n\u003cdd\u003e\n\u003cstrong\u003eInstrument Type\u003c\/strong\u003e: Multifunctional quantum PAR meter and illuminance light meter for PPFD, lux, foot-candle, candela, DLI, and integrated illuminance measurements\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003ePPFD Measurement Range\u003c\/strong\u003e: 0–4000 µmol\/m²\/s\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003ePPFD Resolution\u003c\/strong\u003e: 1 µmol\/m²\/s\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003ePPFD Spectral Range\u003c\/strong\u003e: 400–700 nm\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003ePPFD Calibration Uncertainty\u003c\/strong\u003e: ±5% at ambient temperatures between 18°C and 23°C\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eIlluminance Range\u003c\/strong\u003e: 400.0 \/ 4000 \/ 40,000 \/ 400,000 lux\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eFoot-Candle Range\u003c\/strong\u003e: 40.00 \/ 400.0 \/ 4,000 \/ 40,000 FC\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eIlluminance Resolution\u003c\/strong\u003e: 0.1 \/ 1 \/ 10 \/ 100 lux; 0.01 \/ 0.1 \/ 1 \/ 10 FC\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLuminous Intensity\u003c\/strong\u003e: Candela (cd), calculated using the configured measurement distance\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eCD Distance Setting\u003c\/strong\u003e: Adjustable from 0.01 m to 99.99 m; default setting 1.00 m\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLux Accuracy\u003c\/strong\u003e: ±3% for Standard Illuminant A at 2856 K\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLux Linearity\u003c\/strong\u003e: ±5% with reading ±1 below 3000 lux; ±7.5% with reading ±1 from 3000 to 9999 lux\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eRelative Spectral Response\u003c\/strong\u003e: ±8% CIE visible-light V(λ)\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eCosine Characteristic\u003c\/strong\u003e: ±6%\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to 50°C\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e: Less than 80% RH\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e: -10°C to 60°C\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eStorage Humidity\u003c\/strong\u003e: Less than 80% RH\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eDisplay\u003c\/strong\u003e: 4-digit LCD, maximum displayed value 9999\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eData Logging Capacity\u003c\/strong\u003e: Up to 50,000 automatic records\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eManual Record Capacity\u003c\/strong\u003e: Up to 200 manual records\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLogging Interval\u003c\/strong\u003e: Adjustable from 5 seconds to 23 hours, 59 minutes, 59 seconds\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eBattery\u003c\/strong\u003e: 9V 6LR61 alkaline battery\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eBattery Life\u003c\/strong\u003e: Approximately 60 hours\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eMeter Dimensions\u003c\/strong\u003e: 140 × 65 × 37.5 mm\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eSensor Dimensions\u003c\/strong\u003e: 81 × 57 × 28 mm\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eSensor Cable Length\u003c\/strong\u003e: Approximately 100 cm\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: Approximately 300 g\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cdl class=\"package-list\"\u003e\n\u003cdd\u003e\n\u003cstrong\u003eQuantum PAR Measurement\u003c\/strong\u003e: Measures PPFD from 0 to 4000 µmol\/m²\/s across the 400–700 nm photosynthetically active radiation range\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eMulti-Function Light Testing\u003c\/strong\u003e: Measures PPFD, lux, foot-candles, candela, transmittance, integrated illuminance, and Daily Light Integral\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eFull-Spectrum Lighting Support\u003c\/strong\u003e: Suitable for evaluating sunlight, LED grow lights, greenhouse lighting, indoor farming systems, and other plant-lighting sources within the PAR range\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLarge Data Memory\u003c\/strong\u003e: Stores up to 50,000 automatic logging records and up to 200 manual measurement records\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eUSB Data Transfer\u003c\/strong\u003e: Connects to a computer through USB for transferring recorded measurements and reviewing logged data\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eAdjustable Recording Interval\u003c\/strong\u003e: Configurable automatic logging interval from 5 seconds to 23 hours, 59 minutes, and 59 seconds\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eData Hold\u003c\/strong\u003e: Freezes the current reading for convenient recording or inspection\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eMaximum and Minimum Hold\u003c\/strong\u003e: Captures the highest and lowest measured values during an inspection\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eFour- and Five-Point Average\u003c\/strong\u003e: Calculates an average reading from multiple measurement positions to help assess lighting uniformity\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eAutomatic and Manual Ranging\u003c\/strong\u003e: Supports automatic range selection and manual range selection for controlled measurements\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eBacklit LCD\u003c\/strong\u003e: Provides improved display visibility in dim indoor environments\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eSpectral Correction Factors\u003c\/strong\u003e: Provides selectable correction factors for different light-source spectral characteristics, with user-adjustable settings available for supported correction profiles\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eTransmittance Measurement\u003c\/strong\u003e: Calculates percentage transmittance using a reference measurement\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eTime-Hold Measurement\u003c\/strong\u003e: Automatically captures and freezes a reading after a configured countdown\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eComparator Function\u003c\/strong\u003e: Compares live readings against preset upper and lower limits\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eIlluminance Integration\u003c\/strong\u003e: Accumulates illuminance over a selected measurement period\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eDaily Light Integral\u003c\/strong\u003e: Calculates DLI in mol\/m²\/day and stores up to 99 daily DLI records\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eAuto Power-Off\u003c\/strong\u003e: Powers off after approximately 15 minutes of inactivity; the function can be disabled when required\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eOverload Indication\u003c\/strong\u003e: Displays “OL” when the measured value exceeds the selected range\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eExternal Power Support\u003c\/strong\u003e: Includes a 100–240 V AC to 9 V DC adapter for extended operation\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eStandards and Compliance\u003c\/h3\u003e\n\n\u003cdl class=\"package-list\"\u003e\n\u003cdd\u003e\n\u003cstrong\u003ePhotometric Standards\u003c\/strong\u003e: DIN 5032-7:2017 Class C, JIS C 1609-1:2006 Class A, JJG 245-2005 Class B, and CNS 5119\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eOperating Environment\u003c\/strong\u003e: Indoor use, altitude up to 2000 m, Pollution Degree 2\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\n\u003cdl class=\"package-list\"\u003e\n\u003cdd\u003eMeasuring PPFD from LED grow lights in indoor farms and grow rooms\u003c\/dd\u003e\n\u003cdd\u003eChecking light intensity and uniformity across greenhouse growing areas\u003c\/dd\u003e\n\u003cdd\u003eEvaluating horticultural lighting for commercial plant production\u003c\/dd\u003e\n\u003cdd\u003eComparing PAR output from LED, fluorescent, HPS, daylight, and other lighting systems\u003c\/dd\u003e\n\u003cdd\u003eMonitoring plant-light exposure for research and controlled-environment agriculture\u003c\/dd\u003e\n\u003cdd\u003eMeasuring lux and foot-candle levels in commercial, architectural, and industrial lighting\u003c\/dd\u003e\n\u003cdd\u003eCalculating luminous intensity in candela at a defined measurement distance\u003c\/dd\u003e\n\u003cdd\u003eMonitoring accumulated illuminance over time using the integration function\u003c\/dd\u003e\n\u003cdd\u003eCalculating Daily Light Integral for crop and plant-lighting studies\u003c\/dd\u003e\n\u003cdd\u003eChecking aquarium and reef lighting where an appropriate PAR measurement workflow is required\u003c\/dd\u003e\n\u003cdd\u003ePerforming laboratory, educational, field, and research lighting measurements\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eMeasurement Functions\u003c\/h3\u003e\n\n\u003cdl class=\"package-list\"\u003e\n\u003cdd\u003e\n\u003cstrong\u003ePPFD Mode\u003c\/strong\u003e: Displays photosynthetic photon flux density in µmol\/m²\/s\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLux Mode\u003c\/strong\u003e: Measures visible-light illuminance in lux\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eFoot-Candle Mode\u003c\/strong\u003e: Measures illuminance in foot-candles\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eCandela Mode\u003c\/strong\u003e: Calculates luminous intensity using the configured source distance\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eACC Mode\u003c\/strong\u003e: Integrates illuminance over time\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eDLI Mode\u003c\/strong\u003e: Calculates daily light integral in mol\/m²\/day\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eAVG Mode\u003c\/strong\u003e: Calculates four-point or five-point average readings\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eCOMP Mode\u003c\/strong\u003e: Indicates whether readings are above, below, or within preset limits\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eLOG Mode\u003c\/strong\u003e: Automatically records measurements at a selected interval\n\u003c\/dd\u003e\n\u003cdd\u003e\n\u003cstrong\u003eREC Mode\u003c\/strong\u003e: Stores individual readings manually\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\n\u003cdl class=\"package-list\"\u003e\n\u003cdd\u003e1 × TENMARS TM-217 Quantum PAR Meter and Lux Meter\u003c\/dd\u003e\n\u003cdd\u003e1 × PPFD \/ illuminance light sensor\u003c\/dd\u003e\n\u003cdd\u003e1 × USB cable\u003c\/dd\u003e\n\u003cdd\u003e1 × 9V battery\u003c\/dd\u003e\n\u003cdd\u003e1 × AC 100–240 V to DC 9 V\/0.5 A power adapter\u003c\/dd\u003e\n\u003cdd\u003e1 × Carrying case\u003c\/dd\u003e\n\u003cdd\u003e1 × English user manual\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/tenmars-tm217-user-manual.pdf\" target=\"_blank\"\u003e📄 Download TENMARS TM-217 User Manual\u003c\/a\u003e\n\n\n\u003cdiv class=\"product-vendor\"\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003ca href=\"\/collections\/vendors?q=TENMARS\"\u003eTENMARS\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"variant-inventory\"\u003e\u003cspan class=\"in-stock\"\u003eIn stock!\u003c\/span\u003e\u003c\/div\u003e","brand":"TENMARS","offers":[{"title":"Default Title","offer_id":67699941572821,"sku":null,"price":138500.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7587\/2725\/files\/tenmars-tm-217-quantum-par-meter-lux-meter-full-view.jpg?v=1791461355","url":"https:\/\/nanozone.lk\/products\/tenmars-tm-217-quantum-par-meter-lux-meter","provider":"NanoZone.LK","version":"1.0","type":"link"}