Empowering Scientific Discovery

Shanghai Zequan Science & Technology Co., Ltd.

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BrandWALZ
OriginGermany
ModelDUAL-PAM-100
Sample TypesIntact leaves, isolated chloroplasts/thylakoids, algal suspensions
Optional ModulesP515/535 (pmf, ΔpH, ΔΨ), NADPH/9-AA (NADP⁺ reduction, ΔpH), 3010-DUAL coupling chamber for GFS-3000 gas exchange integration
ComplianceDesigned for GLP-aligned plant physiology research
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OriginGermany
Distribution ModelAuthorized Distributor
Import StatusImported
ModelDUAL-PAM/F
PricingUpon Request
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BrandWalz
OriginGermany
ModelM-IMAGING-PAM
Imaging UnitsMAXI (11 × 15 cm), MINI (2.4 × 3.2 cm), MICROSCOPY (microscope-coupled)
Excitation WavelengthsBlue (450–480 nm), Red (620–625 nm), GFP (480 nm), RGB (full-spectrum)
Compatible Sample FormatsIntact leaves, algal cultures, 96-well plates, 384-spot arrays, lichens, biological soil crusts, single cells
Key Parameters ImagedFo, Fm, Fv/Fm, F, Fm′, Y(II), Y(NPQ), Y(NO), NPQ, qN, qP, qL, ETR, Abs, NIR, Red, Inh, Ft
ComplianceDesigned for GLP-compliant workflows
SoftwareImagingWin v4.x with modular scripting (48 command types), AOI tools, heterogeneity analysis, time-series trend extraction, and Excel-exportable reports
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BrandWALZ
OriginGermany
ModelWATER-PAM-II
Excitation Wavelengths450 nm (blue), 520 nm (green), 630 nm (red), 660 nm (deep red), 730 nm (far-red)
Measurement ParametersFo, Fm, Fv/Fm, F, Fm’, Fo’, Y(II), qP, qN, NPQ, Y(NPQ), Y(NO), ETR, α, Ik, ETRmax, Chl a concentration (cyanobacteria, green algae, diatoms/dinoflagellates), Total Chl a
Detection Limit0.1 µg Chl a/L
Data Storage27,000 saturation pulse datasets
Power Supply8× rechargeable AA batteries (up to 30 h operation
ComplianceDesigned for field-deployable GLP-aligned aquatic photobiology workflows
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BrandWALZ
OriginGermany
ModelDUAL-KLAS-NIR
Detection Wavelength Pairs780–820 nm, 820–870 nm, 840–965 nm, 870–965 nm
Fluorescence Excitation460 nm & 540 nm (modulated PAM)
Optional ModulesP515/535 (ΔpH & ΔΨ), NADPH/9-AA (NADP⁺ reduction), 3010-DUAL leaf chamber for GFS-3000 integration
Measurement Bandwidth1–400 kHz
ApplicationIn vivo real-time redox kinetics of PSI (P700), plastocyanin (PC), ferredoxin (Fd), and Chl a fluorescence
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BrandWALZ
OriginGermany
ModelPAM-2500
Excitation LightRed LED (modulated, multi-frequency selectable)
Actinic LightBlue LED (up to 800 µmol·m⁻²·s⁻¹), Red LED (up to 4000 µmol·m⁻²·s⁻¹)
Far-Red Light750 nm LED
Saturation PulseRed LED (up to 25,000 µmol·m⁻²·s⁻¹)
Single-/Multi-Turnover FlashRed LED (12,500 / 25,000 µmol·m⁻²·s⁻¹)
Measured ParametersFo, Fm, F, Fo′, Fm′, Fv/Fm, Y(II) [ΔF/Fm′], qL, qP, qN, NPQ, Y(NPQ), Y(NO), ETR, C/Fo, PAR, leaf temperature
Operating SystemWindows-based embedded interface
ComplianceDesigned for field-deployable GLP-aligned experimental workflows
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OriginGermany
TypeImported Instrument
Manufacturer RoleAuthorized Distributor
ModelGFS-3000 + Dual-PAM-100 with 3010-DUAL Chamber
PricingUpon Request
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BrandWALZ
OriginGermany
ModelMINI-PAM-II/Porometer
Sample Area1 cm diameter circular chamber
Flow Rate40–200 µmol s⁻¹ (9-step adjustable)
Humidity Sensor Accuracy±1.0–1.5 %RH, ΔT = ±0.1 ℃
Pressure Sensor Accuracy±0.1 kPa
Leaf Temperature Sensor Accuracy±0.3 ℃ (emissivity adjustable 0.1–1.0)
Ambient CO₂ Sensor Accuracy±30 ppm + 3% of reading
Flowmeter Accuracy±1.5% RD + 0.15% F.S.
GPS Receiver Accuracy2.0 m CEP
PAR Sensor Range0–7000 µmol m⁻² s⁻¹ (cosine-corrected for ±30° incidence)
Operating Temperature−5 to 45 ℃
Relative Humidity Range0–90% RH (non-condensing)
Atmospheric Pressure Range30–110 kPa
Measured Parametersgₛ, gₜ, g_b (mmol m⁻² s⁻¹), H₂Oᵢₙ / H₂Oₒᵤₜ / ΔH₂O (mmol mol⁻¹), leaf chamber pressure (kPa), Tₗₑₐf (℃), inlet/outlet flow rate (µmol s⁻¹), VPD (Pa/kPa), E (mmol m⁻² s⁻¹), PAR (µmol m⁻² s⁻¹), GPS coordinates, solar zenith angle
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BrandWALZ
OriginGermany
ModelMULTI-COLOR-PAM-II
Excitation Wavelengths440, 480, 540, 590, 625 nm (plus white light)
Detection Wavelength Optionsλ < 710 nm (PSII-dominant), λ > 700 nm (PSII + PSI)
STK Time Resolution0.3 µs
Flash Intensity>1,000,000 µmol·m⁻²·s⁻¹ (440 nm)
Pump-Probe Delay Range1 µs – 10 ms
Period-4 Oscillation Frequency Supportup to 100 Hz (10 ms interval)
Switching Time Between STK & PAM Modes8–10 µs
ComplianceGLP/GMP-ready data acquisition, FDA 21 CFR Part 11-compatible audit trail in PamWin-4 software
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BrandLemnaTec
OriginGermany
ModelPhenoCenter
Imaging ModulesVIS, NIR, PAM (Maxi-Imaging-PAM), 3D Laser Scanner (optional)
Sample Formats6–384-well microtiter plates, small pots
Max. Throughput72 MTPs per run
Power Supply400 V AC, 16 A, 50 Hz
Dimensions (Basic Module)1800 × 800 × 1900 mm (W×L×H)
Control Console1200 × 700 × 1600 mm
Optional Extension1400 × 800 × 1900 mm
Max. Payload per MTP300 g
VIS FOV20° × 15° @ 485 mm WD
NIR FOV18° × 14° @ 540 mm WD with 1450 nm bandpass filter
PAM Imaging Area100 × 130 mm @ 185 mm WD
Fluorescence ParametersFt, Fo, Fm, Fv/Fm, F, Fm′, Y(II), Y(NO), Y(NPQ), NPQ, qN, qP, qL, ETR, Abs., NIR, Red (≥17 parameters)
Light SourcesBlue (450 nm) or Red (650 nm) LED arrays for PAM excitation
Illumination Homogeneity±7% across imaging area
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BrandWALZ
OriginGermany
ModelHEXAGON-IMAGING-PAM
Imaging Area20 × 24 cm
Resolution1.2 MP (1000 × 1200 px with 2×2 binning
Pixel Size3.45 × 3.45 µm
LED IlluminationPulsed Amplitude Modulation (PAM) with integrated Far-Red (FR) panel for Fo′ measurement
CoolingActive thermal management for high-power LED arrays
SafetyInterlocked sliding door with automatic saturation pulse suppression
AOI AnalysisRegion-of-interest selection pre- or post-acquisition
Data ExportFull parameter set exportable to Excel (.xlsx)
ComplianceDesigned for GLP-compliant plant phenotyping workflows
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OriginImported
Manufacturer TypeAuthorized Distributor
Modelmini-FIRe
Detection Limit0.005–100 mg/m³ chlorophyll *a*
Excitation Wavelengths450 nm (blue), 530 nm (green), 590 nm (orange)
Emission Detection680 nm (Chl *a*), 880 nm (bacteriochlorophyll *a*)
Sample ModesDiscrete cuvette + flow-through configuration
Sensitivity Enhancement~10× vs. prior FIRe systems
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BrandWALZ
OriginGermany
ModelJUNIOR-PAM
Measurement Light SourceBlue LED (465 nm), modulation frequency 5 or 100 Hz, standard intensity 0.1 µmol·m⁻²·s⁻¹
Actinic Light SourceBlue LED (465 nm), 25–1500 µmol·m⁻²·s⁻¹
Saturation PulseBlue LED (465 nm), up to 10,000 µmol·m⁻²·s⁻¹
Far-Red LightLED (740 nm)
DetectorPIN photodiode with long-pass filter (λ > 710 nm), proprietary lock-in amplifier
Operating Temperature−5 to +40 °C
Power SupplyUSB-powered (5 V DC)
Dimensions115 × 65 × 30 mm
Weight200 g
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BrandWALZ
OriginGermany
ModelDIVING-PAM-II
HousingFully Submersible (50 m Depth Rating)
Excitation Wavelengths470 nm (blue) and 655 nm (red) LEDs
Measuring Light Intensity0.05 µmol·m⁻²·s⁻¹
Actinic Light Max3000 µmol·m⁻²·s⁻¹ (continuous)
Saturation Pulse Max6000 µmol·m⁻²·s⁻¹
Far-Red LED Peak735 nm
DetectorPIN photodiode with long-pass/short-pass interference filters and lock-in amplifier
Data Storage8 MB SD card (≈27,000 measurement sets)
Battery Life≥1000 saturation pulses per charge
Measured ParametersFo, Fm, Fv/Fm, F, Fm′, Y(II), qP, qN, NPQ, Y(NO), Y(NPQ), rETR, water depth, water temperature, PAR
Spectral CapabilityIn situ incident and reflected spectral irradiance (via integrated optical sensors)
InterfaceTouch-sensitive, pressure-resistant membrane keypad
DisplayHigh-contrast, sunlight-readable color LCD
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BrandKeyBox
OriginNetherlands
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelKeyBox
PricingUpon Request
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BrandWALZ
Country of OriginGermany
Model3D IMAGING-PAM
Fluorescence Excitation44 × 450 nm blue LEDs
Measuring Light Intensity0.5 µmol·m⁻²·s⁻¹
Actinic Light Range0–2300 µmol·m⁻²·s⁻¹
Saturation Pulse Intensity5000 µmol·m⁻²·s⁻¹
Absorptance Measurement Sources16 × 660 nm red + 16 × 780 nm NIR LEDs
Imaging Area10 × 10 cm
Illumination Homogeneity±7% across field
Key ParametersFt, Fo, Fm, Fv/Fm, F, Fm′, Y(II), Y(NO), Y(NPQ), NPQ, qN, qP, qL, ETR, Abs, NIR, Red, leaf count, leaf angle, rosette morphology, projected area, perimeter, structural complexity
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BrandWALZ
OriginGermany
ModelPHYTO-PAM-II
Measurement PrinciplePulse-Amplitude-Modulated (PAM) Chlorophyll-a Fluorescence Spectroscopy with Multi-Wavelength Excitation
Detection Limit0.1 µg/L Chl-a
Measurement Light Wavelengths440, 480, 540, 590, 625 nm (5-channel pulsed LED)
Actinic Light Wavelengths440, 480, 540, 590, 625 nm + broadband white (420–640 nm)
Far-Red Light725 nm LED
Signal DetectionH-10720 Photomultiplier Module with >650 nm long-pass filter
Max Actinic Irradiance1400 µmol·m⁻²·s⁻¹ (continuous), 7000 µmol·m⁻²·s⁻¹ (flash), 5000 µmol·m⁻²·s⁻¹ (saturation pulse)
Modulation Frequencies8 settings
Measurement Light Intensity2 levels
High-Speed Kinetics ModeO–I₁ fluorescence rise (ms-scale) enabled
Functional Absorption Cross-Section of PSII (σPSII)Quantifiable via multi-wavelength actinic excitation
Reference Spectra StandardizationFluoRed™ calibration protocol for inter-instrument spectral interoperability
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BrandLemnaTec
OriginGermany
ModelPhenoAIxpert HT
Imaging ModalitiesVIS, NIR, IR, PSII Fluorescence, Autofluorescence, Root VIS, Laser 3D, Hyperspectral (400–1700 nm)
AutomationFully Automated Conveyor Transport System (8–30 kg capacity)
Dark ChambersDedicated for VIS, Chlorophyll Fluorescence & NIR modules
Rotational Sample Stage360° motorized pot rotation with software-defined angular resolution
Environmental IsolationPneumatic airlock doors between cultivation and imaging zones
Data InfrastructureLocal server storage with LemnaBase database architecture
Software SuiteLemnaControl (hardware orchestration), LemnaGrid (graphical image processing pipeline), LemnaMiner (statistical analysis & export), Remote Management Module (web-based monitoring & protocol adjustment)
Compliance FrameworkDesigned for GLP-aligned experimental workflows
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BrandWALZ
OriginGermany
ModelMONITORING-PAM
Power SupplySolar panel or internal rechargeable battery (field unit)
Data StoragemicroSD card (terrestrial version) / internal flash memory (submersible version)
Channel Capacity1–7 measurement heads per MONI-DA data logger (recommended: 3 or 4)
Environmental RatingIP68-rated field components (submersible version)
Measured ParametersFo, Fm, F, Fo′, Fm′, Fv/Fm, Y(II), qP, qL, qN, NPQ, Y(NPQ), Y(NO), ETR, PAR, and temperature
Operating ModesStandalone long-term field monitoring OR real-time PC-connected operation
ComplianceDesigned for GLP-aligned ecological monitoring
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