Product Info

The zLogg z1H is an extremely accurate and low cost single-use data logger for temperature and humidity, with 5X LED  blue for low alarms, green for no alarm and red for high alarms, visual indication of the current status (recording, stopped, battery level). The battery (non-replaceable) has a shelf life of up to 1 year for regular usage. When not in use, the logger is automatically placed in sleep mode to save the battery.

Once plugged into the USB port, the logger works like a USB stick that holds the automatically generated ZLG, TXT, CSV and PDF files. No zLogg software needed.

Where other suppliers choose to accompany their loggers with a basic manufacturers certificate, mentioning specifications based on theoretical calculations and prefabrication tests, every zLogg z1 can be individually calibrated before it leaves our lab. Its unique, traceable calibration certificate can be found 'in the cloud' by clicking a link on the PDF generated by the logger.

z1H Flyer


  • Extremely accurate over its whole measuring range
  • Ultra fine resolution of 0.015°C and 0.01%RH
  • Online calibration certicate direct from link in PDF
  • Auto-generated PDF build in
  • Customizable PDF reports
  • Auto-generated CSV and TXT reports
  • 5 x Leds for alarms, status and battery indication 
  • Large memory (45,568 records)
  • Mark Readings
  • Multi configurable, visual alarms
  • Supports Windows/MacOSX/Linux
  • Upgrade firmware with USB connection
  • Free zLoggManager Software

PDF Sample


Order code: z1MuH

Logger type: Single-use Temperature & Humidity Data Logger

Sensor: Digital Sensirion SHT31

Memory: 45,568 records

Operating temperature: -40 °C ~ +80 °C (-40°F ~ +176°F)

Temperature measuring range: -40 °C ~ +80 °C (-40°F ~ +176°F)

Temperature Accuracy: ±0.3°C over the complete measuring range

Temperature resolution:  0.01°C

Time accuracy: ±15 minutes per year

Buttons: 2, Start & Stop

Start Options:
Manual start with or without delay
Auto Start on date and time
Auto Start on set temperature with or without delay

Stop Options:
Auto Stop after a set period
Auto Stop on date and time
Manual Stop

Mark Readings: 8x

Log Interval: 1 second to 24 hours

Alarms: 4, total and/or consecutive

Sensor Response Time: better than 7 minutes (T90) in moving air.

Battery: Not replaceable

Battery life: up to 1 year for a normal usage

Display: 5X LED — blue, green, red

Connection/Interface: Direct to computer/USB Mass Storage Device

Auto Generated Files: ZLG, TXT, CSV, PDF (in all supported languages)

Export File Types: ZLG, TXT, CSV PDF

Software Support: zLoggManager

Compatibility: Windows, MacOSX, Linux

Calibration: individual calibration certificate per logger

Certificates: CE, RoHS

Dimensions: 78 x 48 x 9 mm

Weight: 16 gr.

Housing: ABS

Protection Class: IP30

Security: Password Protection

Warranty: 1 year

Calibration Certificate Sample

About zLogg

zLogg provides innovative, cutting-edge Dataloggers in the most user-friendly way. Our products are designed to meet the demanding standards and regulations of the healthcare, food and pharmaceutical markets.
Our dedicated team of expert engineers relentlessly seek out the most innovative, reliable and cost-efficient solution to help our customers fulfill their market potential.

© 2017 zLogg
Questions? Please call (561) 235-8251
We run on a secure payment gateway.

Latest News

25 May 2024
03 October 2022

Latest Upgrades

03 October 2022
20 February 2018