Stem Flow Meter
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| Brand | Dynamax |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | Agrisensors |
| Pricing | Available Upon Request |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | EXO-Skin™ |
| Sensor Type | Heat-Balance-Based Wrap-Around Sap Flow Sensor |
| Diameter Range | 9.5–25 mm |
| Height | 70–120 mm |
| Input Voltage | 4.5 V DC |
| Typical Power Consumption | 0.13–0.48 W |
| Thermocouple Pairs | 2 per unit |
| Enclosure | PTFE-Composite Vapor-Permeable Waterproof Membrane |
| Mounting | Velstretch® Elastic Nylon Band (Breathable, Hydrophobic, Growth-Accommodating) |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | FLGS-TDP |
| Data Logger Memory | 4 MB standard (expandable to 16 GB microSD) |
| Storage Capacity | 400 days at 1-hour interval |
| Input Channels | 32 differential analog inputs |
| Max Probe Support | 128 × TDP10/30/50, 64 × TDP80, or 40 × TDP100 |
| Temperature Accuracy | ±0.03 °C |
| Temperature Resolution | 0.0083 °C |
| AVRD Voltage Regulation | 4 channels (1.5–10 V, 5 A each) |
| System Dimensions | 45 × 35 × 16 cm |
| Weight | 11.5 kg |
| Power Supply | Dual-voltage AC adapter (110–220 V, 50–60 Hz, 4.5 A) |
| Standard Cable Length | 3 m (extendable to 22.8 m) |
| Compliance | Designed for long-term field deployment under GLP-aligned environmental monitoring protocols |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Flow32-1K |
| Pricing | Upon Request |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | Flow32-1K |
| Power Supply | 12 V rechargeable lead-acid battery (7 Ah) |
| Data Storage | 4 MB internal (expandable to 16 GB via microSD) |
| Channel Capacity | Up to 32 differential analog input channels |
| Sensor Compatibility | 14 sizes of Dynagage wrap-around stem flow sensors (stem diameter range: 2.1–165 mm) |
| Voltage Regulation | Dual AVRD modules, 1.5–10 V adjustable, 5 A per channel |
| Input Resolution | 0.05–0.88 µV |
| Input Range | ±200–5000 mV |
| Communication | Micro-B USB, Ethernet |
| Enclosure | Fiberglass weatherproof cabinet (43 × 35 × 16 cm), 11.5 kg |
| Operating Mode | AVRD adaptive power-saving mode with automatic Ksh zero-point recalibration |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | HPFM-Gen3 |
| Pressure Range | 0–630 kPa |
| Flow Rate Range | 0.7–2500 g/h (6 full-scale ranges) |
| Hydraulic Conductance Range | 7.7×10⁻⁸ to 2.2×10⁻³ kg·s⁻¹·MPa⁻¹ |
| Sampling Interval | 1 reading per 2 s |
| A/D Resolution | 24-bit dual analog-to-digital conversion |
| Dimensions | 33 × 31 × 52 cm |
| Weight | 12 kg (excluding pressure vessel) |
| Deaerated Water Capacity | 8 L |
| Power & Interface | USB-powered, no external power supply required |
| Operating Systems | Windows XP, Vista, Windows 7 |
| Compliance | NIST-traceable calibration, GLP-compliant data acquisition architecture |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | SapIP Monitoring Network |
| Node-to-Node Range | 300–500 m |
| Onboard Storage | 30,000 Records per Node |
| Compliance | Designed for Field-Deployable Ecophysiological Research under GLP-Aligned Data Integrity Practices |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Model | SGDC |
| Type | Heat Balance-Based Stem Flow Sensor |
| Compliance | Validated per USDA-ARS protocols (Lascano et al., 2016, *Agric. Sci.*) |
| Channel Requirement | 2 differential analog inputs (temperature + heater voltage/current) |
| Stem Diameter Range | 7–25 mm (model-dependent) |
| Enclosure Design | EXO-Skin conformal wrap |
| Heater Architecture | Molded, low-thermal-mass resistive element |
| Environmental Protection | IP67-rated moisture barrier |
| Calibration Traceability | NIST-traceable thermistor and voltage references |
| Brand | Ecomatik |
|---|---|
| Origin | Germany |
| Model | SF-G |
| Measurement Principle | Granier Thermal Dissipation Method |
| Probe Configuration | Dual-needle, Constant Current Heating |
| Output Signal | 0–1000 µV differential voltage |
| Power Consumption | 0.2 W ±5% (84 mA @ 12 VDC) |
| Operating Temperature | –25 to +50 °C |
| Cable Length | Standard 5 m (extendable to 20 m) |
| Suitable Stem Diameter | >5 cm |
| Probe Variants | SF-G33 (33 mm needle / 20 mm heater), SF-G43 (43 mm / 20 mm), SF-G63 (63 mm / 20 mm) |
| Compliance | Compatible with ISO 17025-accredited data acquisition systems and GLP/GMP environmental monitoring workflows |
| Brand | Ecomatik |
|---|---|
| Origin | Germany |
| Model | SF-L |
| Probe Type | TDP-based Thermal Dissipation Probe (4-pin, dual-pair configuration) |
| Probe Length | 33 mm (heated) / 20 mm (reference) |
| Minimum Stem Diameter | >20 cm |
| Power Consumption | 0.2 W (84 mA DC) |
| Output Signal | –100 to +1000 µV differential |
| Cable Length | 5 m (extendable up to 20 m) |
| Compatible Data Logger | Campbell Scientific CR1000 (32 differential channels, expandable to 128 via AM16/32 multiplexer) |
| Power Supply | SF30 Constant-Current Source (supports 3 SF-L probes simultaneously) |
| Compliance | Designed for long-term field deployment under ISO 17025-aligned environmental monitoring practices |
| Software | PC-based acquisition and calibration suite with zero-point correction algorithms |
| Accessories Included | SF60 extension cable, SF40 installation kit, weatherproof enclosure, power supply, user manual |
| Brand | Ecomatik |
|---|---|
| Origin | Germany |
| Model | SF-L |
| Probe Type | SF-L33 (4-pin TDP thermal dissipation probe) |
| Probe Length | 33 mm (heated) / 20 mm (reference) |
| Cable Length | 5 m (extendable to 20 m) |
| Minimum Stem Diameter | >20 cm |
| Power Consumption | 0.2 W (84 mA DC) |
| Output Signal | –100 to +1000 µV differential |
| Excitation | Constant-current source (SF30 power supply, supports up to 3 probes) |
| Data Logger Compatibility | Campbell Scientific CR1000 (32 differential inputs, expandable to 128 channels via AM16/32 multiplexer) |
| Internal Memory | 2 MB (~100,000 records, ~200 days at 30-min interval) |
| Communication Interface | RS-232 (9-pin) |
| Origin | Czech Republic |
|---|---|
| Distribution Model | Authorized Distributor |
| Import Status | Imported |
| Model | EcoTechTree Physiological Ecosystem |
| Price Range | USD 14,000 – 28,000 |
| Brand | Edaphic |
|---|---|
| Origin | Australia |
| Model | HPV-06 |
| Measurement Principle | Heat Pulse Velocity (HPV) |
| Flow Range | –200 to +1000 cm/hr (heat velocity) |
| Resolution | 0.001 cm/hr |
| Accuracy | ±0.1 cm/hr |
| Probe Diameter | φ1.3 mm |
| Probe Length | 30 mm |
| Thermistor Positions | 10 mm (outer), 20 mm (inner) |
| Inter-probe Spacing | 6 mm |
| Operating Temperature Range | –30 to +70 °C |
| Response Time | 200 ms |
| Heater Resistance | 39 Ω |
| Energy Input | 400 J/m |
| Power Supply | 12 V DC |
| Output Signal | SDI-12 |
| Cable Length | 5 m (max. 60 m) |
| Origin | Czech Republic |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Imported |
| Model | EMS-62 Portable Dual-Channel Plant Stem Flow Monitor |
| Pricing | Upon Request |
| Origin | Europe |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | EMS62 |
| Price Range | USD 13,500 – 27,000 |
| Origin | Czech Republic |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | EMS81 Tree Stem Flow Monitoring System |
| Price Range | USD 13,500 – 27,000 |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | ENVIdata-DT |
| Pricing | Available Upon Request |
| Origin | Israel |
|---|---|
| Type | Imported Instrument |
| Manufacturer Role | Authorized Distributor |
| Model | PM-11z |
| Pricing | Available Upon Request |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported |
| Model | SapIP |
| Pricing | Upon Request |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 173100 Stemflow Measurement System |
| Pricing | Available Upon Request |
| Brand | Tianyan (Shandong Tianyan Instrument Co., Ltd.) |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TY-JL01 |
| Measurement Principle | Constant-Heat Thermal Dissipation Method (Granier-type) |
| Probe Length | 33 mm |
| Inter-probe Spacing | 10–15 cm |
| Sensor Type | Paired T-type Thermocouples |
| Heating Element | DC-powered Constant-Current Resistive Heater |
| Data Storage | 2 GB SD Card |
| Sampling Interval | Adjustable from 1 to 99 minutes |
| Display | 320 × 160 LCD |
| Power Supply | 8.4 V Rechargeable Lithium Battery (Optional Solar Panel Integration) |
| Operating Temperature | 10–60 °C |
| Operating Humidity | 0–100 % RH |
| Material | Stainless Steel Probes with PTFE (Teflon) Coating |
| Channel Count | Single-Channel |
| Output | Instantaneous Sap Flux Density (g·m⁻²·s⁻¹ or mL·cm⁻²·h⁻¹, software-convertible) |
| Brand | Top Cloud-agri |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TPJL-1000 |
| Pricing | Available Upon Request |
| Measurement Principle | Constant-Heat Thermal Dissipation Method |
| Measured Parameter | Instantaneous Stem Flow Density (g·cm⁻²·h⁻¹) |
| Probe Length | 33 mm |
| Number of Probes | 2 |
| Display | 320 × 160 LCD |
| Storage Capacity | 2 GB SD Card (User-Replaceable) |
| Sampling Interval | Adjustable from 1 to 99 minutes |
| Power Supply | 8.4 V Rechargeable Lithium Battery (Optional Solar Charging Kit Available) |
| Probe Material | Stainless Steel with PTFE Coating |
| Reusability | Dual-Probe Design with Dedicated Drilling Tool for Minimized Xylem Damage |
| Brand | WD Precision |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | WD-JL1000 |
| Price | USD 5,600 (FOB Beijing) |
| Core Technology | Granier-type Thermal Dissipation Probe (TDP) |
| Data Logger | Campbell Scientific CR1000x |
| Sensor Compatibility | TDP30 / TDP50 / TDP80 stem flow probes |
| Power Management | Adaptive low-power operation with AVRD voltage regulation |
| Environmental Rating | -40°C to +70°C (standard), -55°C to +85°C (extended) |
| Data Storage | Up to 400 days at 1-hour interval (128 MB internal + microSD up to 16 GB) |
| Communication | RS-232/RS-485, Ethernet 10/100 Mbps, USB-micro B, CS I/O, CPI/CDM |
| Input Capacity | 16 single-ended / 8 differential analog channels |
| Compliance | Designed for GLP-aligned field deployments |
| compatible with ASTM E2899-22 (Standard Guide for In Situ Sap Flow Measurement) and ISO 16634-1 | 2021 (Plant physiology — Sap flow measurement — Part 1: Thermal dissipation method) |