Sensors

TEMPERATURE sensors

Air temeprature, relative humidity

PESSL INSTRUMENTS HYGROCLIP (AIR TEMPERATURE AND RELATIVE HUMIDITY)

Measures relative humidity and temperature with outstanding accuracy and repeatability. It has an integrated data acquisition and calibration history. Dew point, VPD and delta T calculations available.

SENSORPESSL INSTRUMENTS HYGROCLIP (AIR TEMPERATURE AND RELATIVE HUMIDITY)
Part No.A660611

TECHNICAL SPECIFICATIONS

Temperature sensorPT1000 1/3 Class B
Humidity sensorROTRONIC Hygromer® IN-1
Accuracy with standard adjustment profileat 23°C and 10, 35, 80 % rh
± 0.8% rh / ± 0.1 °C
Accuracy with high precision adjustment profileat 23 °C and 10, 20, 30, 40, 50, 60, 70, 80, 90 % rh
± 0.5% rh / 0.1 °C
Resolution, AirChip3000Typically 0.02 % rh, 0.01 °C
Long-term stability< 1 % rh, 0.1°C / year
Humidity response time t 633 seconds
Measurement range0…100 % rh, -100…200 °C
Electronics operating range-50-100 °C and 0-100 % rh
Output signalsSerial port RS485
Audit trail & electronic recordsFDA 21CFR Part 11 and GAMP compliant
Power supply & consumption3.2 V / 4 mA
Housing/probe materialPolycarbonate
FilterPolyethylene insert, polycarbonate cage
StandardsCE-compliant 2007/108/EG

 

PESSL INSTRUMENTS AIR TEMPERATURE AND RELATIVE HUMIDITY SENSOR – with a longer cable

Measures air temperature and relative humidity with the additional calculation of virtual sensors like dew point, VPD and delta T. The sensor is used for low power consuming applications on μMETOS CLIMA (LoRaWAN, NB-IoT). Application: when long distances up to 15 m from the main station are required i.e. in greenhouses in/out when two or more sensors are needed.

SENSORPESSL INSTRUMENTS AIR TEMPERATURE AND RELATIVE HUMIDITY SENSOR
Part No.IM526TR-SHLD

TECHNICAL SPECIFICATIONS

SensorHYT221
Operating temperature range-40°C to +60°C
Humidity range0% to 100% RH
Accuracy±0.2°C (0°C to +60°C)
±2 % RH at +23 °C (0% to 90% RH)
Operating voltage2.7V to 5.5V
Digital interfaceRS485 with PI-Bus, insertable in a chain
Operating voltage (limit data)0.3 V to +6 V
Storage conditions-20 °C to +50 °C
Cable lenght5m

PESSL INSTRUMENTS AIR TEMPERATURE AND RELATIVE HUMIDITY SENSOR

Measures air temperature and relative humidity and is used for low power consuming applications on μMETOS CLIMA (LoRaWANTM, NB-IoT) and iMETOS ECO D3.
I2C Bus Considerations: I2C Bus is sensitive to electromagnetic waves and can be distorted under certain conditions. On the contrary, Hygroclip is less sensitive.
Recommended cable length: not longer than 1 m

SENSORPESSL INSTRUMENTS AIR TEMPERATURE AND RELATIVE HUMIDITY SENSOR
Part No.IM526TR

TECHNICAL SPECIFICATIONS

SensorHYT221
Operating temperature range-40°C to +125°C
Humidity range0% to 100% RH
Accuracy±0.2°C (0°C to +60°C)
±2 % RH at +23 °C (0% to 90% RH)
Operating voltage2.7V to 5.5V
Digital interfaceI²C, address 0x28 or alternative address
Operating voltage (limit data)0.3 V to +6 V
Storage conditions-20 °C to +50 °C

PESSL INSTRUMENTS WET AND DRY BULB TEMPERATURE

Two highly reliable and tested PT1000 are built in a waterproof housing. One of them is covered with cotton tissue and wetted with water.

SENSORPESSL INSTRUMENTS WET AND DRY BULB TEMPERATURE
Part No.IM505CD

TECHNICAL SPECIFICATIONS

SensorPT1000 (technical details of PT1000 are under relative humidity and air temperature)
Supply voltage4.57 – 7 V for chain version
Supply currentmax. 200 μA
Short circuit protectioninfinite (within supply voltage range)
Short circuit supply currentmax. 40 mA
Operating temp. range-30° C to +60° C
Accuracy0.1 °C
Cable length5 m
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PESSL INSTRUMENTS BAROMETER

air pressure

The Pessl Instruments barometric sensor measures the “absolute air pressure” of the atmosphere on site. It is designed for application in the field of environmental protection, where high accuracy, quick response, longterm stability and reliability are required. The instrument is suited for indoor and outdoor use. A tempered piezoceramic sensor for absolute pressure is used, characterized by its thermal and mechanical stability.

SENSORPESSL INSTRUMENTS BAROMETER
Part No.MD514D

TECHNICAL SPECIFICATIONS

Working range0-1150 mbar
Weightca. 50g
Power supply5.0 VDC (6VDC maximum)
Zero offset0.50 ±0.09 VDC
Power uptakemax. 20mA
Precision0.1 % max. Thrift
Temperature range-40 °C to 125 °C
Measuring typeSerial (RS 485)
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PRECIPITATION sensors

PESSL INSTRUMENTS RAIN GAUGE

The mechanic consists of a magnet, which moves past a reed switch and opens or closes the circuit. The double spoon tips left or right and does not lose any water due to a very fast switching mechanics. The resolution with a surface of 200 cm2 is 0.2 mm, while the resolution with the 80 cm2 is 0.5 mm. Heating for rain gauge can also be included.

SENSORRAIN GAUGE
Part No.IM523

TECHNICAL SPECIFICATIONS

Sensor TypeDouble tipping bucket rain gauge
OutputSwitch signal
SwitchReed contact, solid state
Sensitivity1 tip per 0.2 mm or 1 tip per 0.5 mm
Collector Surface200 cm2
EvaluationDigital
Maximum Rain12 mm/minute
Dimensions185 mm diameter x 250 mm H
Accuracy±5%
Addition: high precision rain gauge calibration module 
Accuracy±3.5 %

 

ADDITIONAL equipment: BIRD SPIKES

Protect your rain gauge from birds entry with the use of the green crown with bird spikes.

 

PESSL INSTRUMENTS HIGH PRECISION RAIN GAUGE

Latest weighing technology combined with a self-emptying precision tipping bucket allows the rain[e]one a high resolution and high precision at a very small construction volume. The rain[e]one is ideal to setup new measurement network as well as addition to an existing rainfall measurement network. The proven mechanic of a Pessl Instruments High precision rain gauge consists of a magnet, which moves past a reed switch and opens or closes the circuit. The double spoon tips left or right and does not lose any water due to a very fast switching mechanics to precisely measure high intense rainfall events. The resolution with a surface of 200 cm2 is 0.1 mm. Heating for rain gauge can also be included.

SENSORPESSL INSTRUMENTS HIGH PRECISION RAIN GAUGE
Part No.HPR1000


TECHNICAL SPECIFICATIONS

Resolutionminimum 0.1 mm
Accuracy±1 % at 1 mm/min
Amount resolutionwithout limitation
Intensity range0-10 mm/min resp. 0-600 mm/h
Intensity resolution0.1 mm/min resp. 0.001 mm/h
Collecting surface areaminimum 200 cm²
Measuring principleweighing with automatic self emptying
Working range0-65 °C
Housing materialglass-epoxy laminate
Holderstainless steel bracket holder
Protection classIP67
StandardsWMO-No. 8 • VDI 3786 Bl. 7 • EN 61000-2, -4 • EN 61000-4-2,

Debris protection and filter

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SOIL TEMPERATURE sensors

PESSL INSTRUMENTS SOIL TEMPERATURE

The Soil Temperature Sensor is a PT1000 in a waterproof stainless steel housing. The sensor output is a duty-cycle signal.

SENSORPESSL INSTRUMENTS SOIL TEMPERATURE
Part No.IM5041D

TECHNICAL SPECIFICATIONS

Sensor SMT172Operating temperature range: -30 °C to +75 °C

Accuracy: ±0.5 °C (-30 °C to +75 °C)
Sensor PT1000Operating temperature range: -30 °C to +75 °C

Accuracy: ±0.1 °C (-30 °C to +75 °C)
Supply voltage4.57-7 V
Supply currentmax. 200 μA
Short circuit protectioninfinite (within supply voltage range)
Short circuit supply currentmax. 40 mA
Calibration errormax. 0.25°C (23°C)
Nonlinearity errormax. 0.2°C
Supply voltage sensitivitymax. 0.1°C/V
Repeatabilitymax. 0.2°C
Long term driftmax. 0.1°C
Output frequency1 to 4 kHz
EvaluationDuty cycle
Cable length5 m



PESSL INSTRUMENTS MULTIPLE SOIL TEMPERATURE


SAR19/SAR19M provide soil temperature measurement from several centimeters to 15-meter deep by using the Pessl Instruments sensor BUS. The distance between the ensors can be chosen according the application, but only up to 10 sensors can be attached to one sensor chain.

 

SENSORPESSL INSTRUMENTS MULTIPLE SOIL TEMPERATURE
Part No.SAR19/SAR19M

 

TECHNICAL SPECIFICATIONS

Temperature sensorDS18B20
Operating temperature range-55°C to +125°C
Supply DC Voltage (range)3 – 5.5 V
Thermometer error
-10°C to +85°C
±0.3°C
Drift±0.2°C
Data transmissionRS 485 Digital signal (temperature data sent on demand of iMETOS main board)

SINGLE SOIL TEMPERATURE

WMTEMP is a soil temperature sensor usually used with Watermark sensors on iMETOS ECO D3.

SENSORSINGLE SOIL TEMPERATURE
Part No.WMTEMP

TECHNICAL SPECIFICATIONS

Temperature sensorDS18B20
Operating temperature range-55°C to +125°C
Supply DC Voltage (range)3 – 5.5 V
Thermometer error -10°C to +85°C±0.3°C
Drift±0.2°C
Data transmissionRs 485 Digital signal (temperature data sent on demand of iMETOS main board)

PESSL INSTRUMENTS HEAVY DUTY MULTIPLE-TEMPERATURE PROBE


Multiple-temperature probe is a thermometer, designed for making measurements in extremely harsh conditions like temperature of waste on disposal sites, and chipped wood in storage rooms.

 

SENSORPESSL INSTRUMENTS HEAVY DUTY MULTIPLE-TEMPERATURE PROBE
Part No.MUSO

 

TECHNICAL SPECIFICATIONS

Operating temperature range-55°C to +125°C
Supply DC voltage (range)3 – 5,5 V
Thermometer error -10°C to +85°C±0.3°C
Drift±0.2°C
Data transmissionRS 485 Digital signal (temperature data sent on demand of iMETOS main board)
iMETOS checks all sensors every 5 minutes

IRROMETER TENSIOMETER

The instrument measures soil water tension (or suction). This value represents the energy a plant’s root system uses to draw water from the soil. Understanding soil moisture dynamics helps the user make informed irrigation scheduling decisions, resulting in improved yield quantity and quality while reducing water, fertilizer, labor and energy costs. Available in different lengths: 15 cm, 30 cm, 45 cm, 60 cm and 90 cm.

SENSORIRROMETER TENSIOMETER
Part No.TNS101
TNS103
TNS104
TNS105
TNS106
TNS107
TNS108

 

TECHNICAL SPECIFICATIONS

Instrument body materialsButyrate body, ceramic tip, neoprene stopper
Weight30 cm weights 0.439 kg. It increases 0.114 kg per 30 cm
Ceramic tipWhite tip – used for most soil types
Operating suction0-90 kPa
Operating temperature range0°C to 50°C
Reservoir dimensionsHeight: 120-130 mm including cap;
Diameter: 51-55 mm including cap
Body tube dimensionsLenght: ranges from 15 to 90 cm
Diameter: 22 mm
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SOIL MOISTURE sensors

PESSL INSTRUMENTS SOIL MOISTURE SENSOR
PI54-D

The PI54-D soil moisture sensor has a larger volume of influence. It determines volumetric water content (VWC) by measuring the dielectric constant of the soil using capacitance technology and soil temperature. It is 10 cm long and thus measures 1 liter of soil, while high frequency minimizes salinity and textural effects which makes PI54-D accurate in most soils.

SENSORPESSL INSTRUMENTS SOIL MOISTURE SENSOR PI54-D
Part No.PI54-D/5

Technical specifications

Volumetric water content (VWC)Range: 0−0.57 m3/m3 (0%−57% VWC)

Resolution: 0.0008 m³/m³ (0.08% VWC) in mineral soils from 0−0.50 m³/m³ (0%−50% VWC)

Accuracy: With standard calibration equation, 0.03 m³/m³ (3% VWC) typical in mineral soils that have solution electrical conductivity <10 dS/m

NOTE: With soil-specific calibration, ±0.02 m³/m³ ( ±2% VWC) is typical in any soil.
Dimensions16.0 cm (6.3 in) length; 3.3 cm (1.3 in) width; 0.8 cm (0.3 in) height
Prong length10 cm (3.94 in)
Operating temperature range-40 to 50 °C
Cable length5 m, 10 m
Supply voltage (VIN to GND)Minimum: 3.6 VDC at 12 mA
Maximum: 15 VDC at 20 mA
Measurement durationMaximum 10 ms
Temperature accuracy±0.3
OutputAnalog and digital

SENTEK DRILL & DROP TRISCAN PROBE

Sentek Drill & Drop probe provides the user with great flexibility for precision monitoring of temperature, water and salinity (Triscan) at multiple depths in a soil profile. Available in five lengths: 10 cm, 30 cm, 60 cm, 90 cm and 120 cm with sensors fixed at every 10 cm increment.

SENSORSENTEK DRILL & DROP TRISCAN PROBE
Part No.SE100
SE300
SE600
SE900
SE1200
SE100S
SE300S
SE600S
SE900S
SE1200S

TECHNICAL SPECIFICATIONS

Probe lengths10 cm (4”) / 30 cm (12”) / 60 cm (24”) / 90 cm (36”) / 120 cm (48”)
Number of sensors1 / 3 / 6 / 9 / 12
Outer Probe Diameter (Top-Bottom)24-24.5 mm / 28-29.5 mm / 27-29.5 mm / 26-30 mm / 24.5-29.5 mm
Moisture (VWC) rangeOven dry to saturation
MethodCapacitance based technology
ResolutionMoisture (VWC): 1:10000

Salinity (Triscan) (VIC, Volumetric Ion Content): 1:6000

Temperature: 0.3 °C
Moisture precision±0.03 % vol.
Temperature accuracy±2 °C at 25 °C
Operating temperature range-20°C to +60°C



iMETOS AC PROBE – AQUACHECK SUB-SURFACE PROBE

The Aquacheck sub-surface soil moisture probe offers capacitance based soil moisture and temperature measurements along the vertical soil profile. Different configurations are available with 6, 8 or 12 sensors for a probe length variable from 600 to 1200 mm.

SENSORiMETOS AC PROBE – AQUACHECK SUB-SURFACE PROBE
Part No.AQ0606
AQ0808
AQ1212

TECHNICAL SPECIFICATIONS

Probe lengthsfrom 600 to 1200 mm
Number of sensors6 / 8 / 12 sensors depending on the configuration
Shaft Diameter32 mm
Moisture (VWC) rangeOven dry to saturation
MethodCapacitance based technology
Temperature range0 °C to 51 °C
Temperature resolution0.2 °C
Cable length5 m



IRROMETER WATERMARK SOIL MOISTURE SENSOR

The Watermark Sensor consists of two concentric electrodes buried in a special reference matrix material that is held in place by a synthetic membrane. The matrix material has been selected to reflect the maximum change of electrical resistance over the growth range of crop production, as well as to neutralize the effect of soil salinity. In operation, soil moisture is constantly being absorbed or released and the electrical resistance between the electrodes changes. This resistance is read and logged by the weather station.

The sensor is manufactured from non-corrosive materials and lasts up to three years.

SENSORWATERMARK SOIL MOISTURE SENSOR
Part No.MD510SM
MD510SM-10M

TECHNICAL SPECFICATIONS

Size2.2 cm diameter x 5 cm length
Measuring PrincipleSoil water tension correlated with electrical resistance in granular matrix
Working range0 to 200 kPa
Precision5%
EvaluationAnalog
Cable4.5 meters

 

IRROMETER TENSIOMETER

The instrument measures soil water tension (or suction). This value represents the energy a plant’s root system uses to draw water from the soil. Understanding soil moisture dynamics helps the user make informed irrigation scheduling decisions, resulting in improved yield quantity and quality while reducing water, fertilizer, labor and energy costs. Available in different lengths: 15 cm, 30 cm, 45 cm, 60 cm and 90 cm.

SENSORIRROMETER TENSIOMETER
Part No.TNS101
TNS103
TNS104
TNS105
TNS106
TNS107
TNS108

TECHNICAL SPECIFICATIONS

Instrument body materialsButyrate body, ceramic tip, neoprene stopper
Weight30 cm weights 0.439 kg. It increases 0.114 kg per 30 cm
Ceramic tipWhite tip – used for most soil types
Operating suction0-90 kPa
Operating temperature range0°C to 50°C
Reservoir dimensionsHeight: 120-130 mm including cap;
Diameter: 51-55 mm including cap
Body tube dimensionsLenght: ranges from 15 to 90 cm
Diameter: 22 mm
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ULTRASONIC SNOW HEIGHT OR WATER DEPTH SENSOR

 

Ultrasonic snow depth sensor is used for non-contact measurements of snow depth and river levels in extreme weather conditions. The sensor is characterized by its high level of operating reliability, low energy consumption and ease of use in the field.

SENSORPESSL INSTRUMENTS ULTRASONIC SNOW HEIGHT AND WATER DEPTH SENSOR
Part No.USH8

TECHNICAL SPECIFICATIONS

Range0 to 10 m
Resolution10 mm
Accuracy0.5 % (FS)
Measurement principleUltrasonic
Temperature measurement range-40 °C to +60 °C
Digital RS-232 interfaceSerial port protocol, distance or snow depth
Power supplyFrom the input of the iMETOS, in areas with limited sun extended battery is needed (ord. no. USH8-BATT-EXT).
Ingress protectionIP 66

 

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