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YoYo HumiLog

Simple relative humidity data loggers

YoYo Humilog
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HumiLog is a robust data logger for measuring humidity. There are several models of loggers available: loggers with integrated sensors or loggers with up to 2 externally connectable probes. The standard probes include low cost sensors for humidity/temperature, surface humidity, surface temperature and condensation.

HumiLog delivers accurate readings for humidity and temperature. Relative humidity can be measured with an accuracy of ± 2%. The accuracy for temperature measurements is ± 0.3°C. External temperature probes provide an accuracy of up to ± 0.1°C.

Robust

Yoyo data loggers are robust and used for measuring and recording a wide variety of variables: temperature, humidity, condensation, extra-low voltage, strain gauge, voltage, current, pulse, barometric pressure, as well as light and radiation.

The loggers are made of high quality, shock-proof POM-composed synthetic material. The devices are protected from water ingress according to IP65.

Versatile, flexible & easy to operate

In order to meet the specific demands of various applica-tions the loggers come in different designs and with different 
enclosures:

  • with integrated sensor (e.g. for monitoring shipments)
  • with connectable probes for differentiated analyses with different parameters
  • with sensor integrated in a 100mm stainless steel tube (e.g. for measurements in air ducts, or for pharmaceutical or biological research)

Probes can be easily connected to the logger through screw on connectors, allowing flexible use and quick ex-change.

High-quality and fast

The logger provides memory capacity for 100,000 rea-dings (optional 4 million), which can be read out via USB within seconds via a transfer rate of 500 kbps.

Long durability

The large memory capacity and the low current con-sumption allow logging for years without the need to monitor the device. The “continuous” mode makes it possible to overwrite old data with new readings. Should the battery be completely discharged during operation the integrated none-volatile flash memory will keep the readings safe.

Status visualisation by LED

The yoyo data loggers are equipped with an integrated status LED which can be used for different functions:

  • displaying when a threshold has been exceeded
  • indicating low battery
  • displaying the data logging status (making it easy to identify the device’s condition)
Catalogue no.ModelSensor positionSensor 
type/inputs
External sensorsMemory sizeList Price£
YL-RH20 YL-RH20 Internal only Single RH / Temperature No 100,000 readings 179.00
YL-RH20-4M YL-RH20-4M Internal only Single RH / Temperature No 4 million readings 242.00
YL-RH20E YL-RH20E External Integrated Single RH / Temperature No 100,000 readings 215.00
YL-RH20E-4M YL-RH20E-4M External Integrated Single RH / Temperature No 4 million readings 278.00
YL-RH23 YL-RH23 Internal only Temperature, RH & Pressure No 100,000 readings 259.00
YL-RH23-4M YL-RH23-4M Internal only Temperature, RH & Pressure No 4 million readings 322.00
YL-RH23E YL-RH23E Internal & External Integrated Temperature, RH & Pressure No 100,000 readings 290.00
YL-RH23E-4M YL-RH23E-4M Internal & External Integrated Temperature, RH & Pressure No 4 million readings 352.00
YL-RH25 YL-RH25 Internal & External Internal Temperature, RH, Pressure + external inputs Yes 100,000 readings 255.00
YL-RH25-4M YL-RH25-4M Internal & External Internal Temperature, RH, Pressure + external inputs Yes 4 million readings 316.00