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Multi
loggers 
2YL-M36-4M
2YL-M37-4M 2YL-M61-4M 2YL-M62-4M 2YL-M90-4M 2YL-M90E-4M 2YL-M91-4M
Grant 2YL-M90-E

2YL-M90-4M Multi Input Logger

Integrated temperature and humidity sensors and 2 configurable channels. Accepts probes for temperature, humidity, voltage, current, luminance, CO2 and more.

Supplied with YoyoLog View software, USB lead and long life battery.

Key Features
• Rugged IP65 housing
• Status LED: - Indicates Alarm - Low Battery Warning
• Accepts 2 x External Probes
• Multi function logger
• 2YL-M90-4M: Intergrated Temperature and Humidity sensors

Download Brochure HERE

Dimensions (d x h) 50 c 33mm
Ambient temperature range -40 to +90°C
Measuring range -70 to +250°C with Probe
Accuracy 1% of selected measurement
Internal sensor resolution 0.01
Signal input Free or low level pulses <0.5VDC amd high, between 2 and 3 VDC - with YY-CS Cable
Memory capacity (readings) 4 million
Active start
Sensor type

Multilogger - Internal Temperature/Humidity + External Probes

Humidity Sensor
(Internal and External)

0 to 100% RH/0.01% RH
Voltage Pulses range 0 to 65000 pulses, interval 0 to 100 pulses per second
Voltage resolution 1Hz, 1 Pulse
Intervals 1 second to 24 hours
IP rating 65
Battery type LITH-12

Battery life (Logging Speed)
1 minute

4 years

10 seconds

230 days

1 second

25 days
Robust, shock proof
Suitable Probes PT100/PT1000

Note: Optional Extras include - YoyoView Software, Calibration Certificate, Wall holder, Lead Seal Kit, Probes and Accessories.

Supplied with YoyoLog View software, USB lead and long life battery.

** Higher voltage levels up to 24Volts require the YY-CP cable.

 

TEMPERATURE ACCURACY
Specs YY internal 20_23_25_61_90.jpg

Specs YY external T 20_23_25_61_90.jpg

 

HUMIDITY OPERATING CONDITIONS
RH Operating Conditions

The humidity sensor may be used in a range of 0…100% RH but the recommended range is reduced at elevated temperatures. This is due to the fact that quite an aggressive environment is developed when you are measuring at high humidity and at the same time at a high temperature.

 

Input ranges
Range mV 0 to 1V 0 to 2.5V 0 to 5V 0 to 10V 0 to 24mA
Resolution µV * 15.4 38.9 76.9 154 0.36µA
Input impendance Mohm 0.1 0.1 0.1 0.1 10 Ohmshunt

* input ranges can be measured at 32 Hz. At 32 Hz the maximum resolution is ten times of the above value.
Note: A YY-CU cable with integrated potential divider is required in order to connect voltage signals. Current signals require the YY-CI cable.

Voltage and current
Range mV 0 to 10 0 to 20 0 to 50 0 to 100 0 to 1V 0 to 2.5V 0 to 5V 0 to 10V
Resolution µV * 0.58 0.58 0.76 1.54 15.4 38.9 76.9 154
Input impendance Mohm 2.5 2.5 2.5 2.5 2.5 0.1 0.1  
Voltage range/resolution 0 to 24mA / 0.36µA
Accuracy 0.1% of range
Signal input Lower signals (max 1V) can be processed with the standard cable YY-CS. Higher voltage levels require the connection
cable YY-CP.

 

SENSORS

General Purpose humidity/temp sensor

Extra small humidity/temp sensor

Wall-saturation humidity/temp sensor

Boundary layer humidity/temp sensor

Stainless steel tube 35mm in length and 8mm diameter.
YS-RHT80-2: PVC cable 2 metres in length.
YS-RHT80-5: PVC cable 5 metres in length. Cable operating temperature -20°C to +80°C.
YS-RHT120-2: PTFE cable 2 metres in length.
YS-RHT120-5: PTFE cable 5 metres in length. Cable operating temperature -40°C to +120°C

Stainless steel tube 20mm in length and 4mm diameter.
YS-RHT-XXS80-2: PVC cable 2 metres in length.
YS-RHT-XXS80-5: PVC cable 5 metres in length.
Cable operating temperature -20°C to +80°C.
YS-RHT-XXS120-2: PTFE cable 2 metres in length.
YS-RHT-XXS120-5: PTFE cable 5 metres in length. Cable operating temperature -40°C to +120°C

Suitable for easuring humidity and temperature in walls and boundary levels. Diameter 30mm height 10mm.
YS-RHTO-2:PVC cable 2 metres in length.

YS-RHTO-5:
PVC cable 5 metres in length. Cable operating temperature -20°C to +80°C

Suitable for measuring humidity and temperature in confined spaces and walls. Length 45mm width 20mm.

YS-RHTW-2:
PVC cable 2 metres in length.
YS-RHTW-5: PVC cable 5 metres in length.
Cable operating temperature -20°C to +80°C

YS-RHT

YS-RHT-XXS

YS-RHTO

YS-RHTW

Condensation sensor

Long PT1000 General purpose temp sensor

Short PT1000 General purpose temp sensor

PT1000 surface temperature sensor

Detects incipient moisture.
Length 43mm width 10mm.
YS-SHS-2:PVC cable 2 metres in length.
YS-SHS-5: PVC cable 5 metres in length.
Cable operating temperature 0 to +50°C

 

 

-70...+250°C Stainless steel probe tube 100mm long by 4mm diameter.
YS-CML80-2: PVC cable 2 metres in length.
YS-CML80-5: PVC cable 5 metres in length.
Max operating temp of cable is 80°C
YS-CML120-2: PTFE cable 2 metres in length.
YS-CML120-5: PTFE cable 5 metres in length.
Max operating temp of cable is 120°C

-70...+250°C Stainless steel probe tube 50mm long by 4mm diameter.
YS-CMS80-2: PVC cable 2 metres in length.
YS-CMS80-5: PVC cable 5 metres in length.
Max operating temp of cable is 80°C
YS-CMS120-2: PTFE cable 2 metres in length.
YS-CMS120-5: PTFE cable 5 metres in length.
Max operating temp of cable is 120°C

-70...+250°C SSteel base 20mm in length and 10mm diameter.
YS-EU80-2: PVC cable 2 metres in length.
YS-EU80-5: PVC cable 5 metres in length.
Max operating temp of cable is 80°C
YS-EU120-2: PTFE cable 2 metres in length.
YS-EU120-5: PTFE cable 5 metres in length.
Max operating temp of cable is 120°C

YS-SHS

YS-CML

YS-CMS.jpg

YS-EU.jpg

PT1000 magnetic surface
temperature sensor
PT1000 fast response
air-temperature sensor
Soil moisture sensor  


Steel base 20mm in length and 10mm diameter with in-built magnet.
YSEUM80-2:PVC cable 2 metres in length.
YSEUM80-5: PVC cable 5 metres in length.
Max operating temp of cable is 80°C

 

 


-70...+250°C Stainless steel probe tube 17mm in length and 4mm diameter.
YSFR80-2: PVC cable 2 metres in length.
YSFR80-5: PVC cable 5 metres in length.
Max operating temp of cable is 80°C
YS-FR120-2: PTFE cable 2 metres in length.
YS-FR120-5: PTFE cable 5 metres in length.
Max operating temp of cable is 120°C


Measures water content in any soil or soiless media with salinity and textural effects.
length 50mm width 16mm
YS-ECH2O-2: PTFE cable 2 metres in length.
Operating temperature -40°C to +50°C

 

 

 
YS-EU.jpg YS-FR.jpg  YS-ECH2O-2  

 

ACCESSORIES
 

Type K
thermocouple


YoyoView Software In addition to the functionalities of the included basic software, the optional upgrade allows more complex analysis of data, creation of charts and calculation of data statistics.
» Three scaleable Y-axes 
» Zoom function 
» Cursor readings 
» Display in spreadsheet format
» Combination of a series of measurements in one chart 
» Definition of thresholds 
» Y/T-charts (values over time) 
» Statistics (min, max, and average values)
» Online metering (display actual values)

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Wall Holder Enables you to securely install the logger onto walls. Complete with tamper-evident lead seal.

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Lead seal kit For Temperatue and Humidity Loggers contains 50 pieces of wire and 50 numbered lead tamper-evident seals for single use. These are manually closed around the wire and can only be released by cutting.

APPLICATIONS
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Test and measurement  Uptime monitoring of harbour cranes, photovoltaic systems. Recording on-board voltage of a racing car or helicopter. All kinds of analogue signals from sensors/transducers. Recording the signal of a CO2-Sensor in a transport box. Tyre manufacturing, raingauge, water supply counter.

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Electricity Measure AC current with current clamps

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Weather monitoing  Monitoring outside temperature / humidity and via connected sensors also soil moisture and rainfall. Weather station, weather balloon.