Meter – ZL6 Data Logger


  • Ultra-rugged and durable construction
  • Configure via Bluetooth with the ZENTRA Utility app
  • Plug and play with METER sensors
  • Six sensor ports
  • The data logger works with ZENTRA Cloud to enable near real-time data viewing anywhere with an internet connection (data can also be downloaded via USB)
  • Integrated GPS and barometric pressure measurement
  • Simple setup
  • Firmware-over-the-air updates
  • Built-in solar panel for extended deployments
  • Rechargeable nickel-metal hydride (NiMH) batteries
  • Stores 40,000 to 80,000+ records, depending on sensor configuration
  • The ZL6 data logger is best for viewing data on the go
  • See signal strength and connection quality in real time: test connectivity at your site BEFORE installation
  • Transmitted data is backed up in the data logger memory to give you extra data protection




Sensor logging interval ZL6 Basic: 60 min (average or accumulation of 60, 1-min sensor readings)
ZL6 and ZL6 Pro: 5 min to 12 h (average or accumulation of 1-min sensor reading)
Logger reporting interval ZL6 Basic: None
ZL6: Hourly with additional charges for more frequent reporting
ZL6 Pro: Hourly with the ability to enable more frequent reporting
Timekeeping ZL6 Basic: Synchronize with ZENTRA Utility or ZENTRA Utility Mobile
ZL6 and ZL6 Pro: Synchronize automatically and on-demand; GPS, cellular, or ZENTRA Utility software
Computer communication Standard USB cable, USB A to micro-USB B
Internet downloads SSL/TLS encrypted
Cellular communication (ZL6 and ZL6 Pro) 3G
Specifications: UMTS 3G 5-band cellular module with 2G fallback
Coverage: AT&T® and T-Mobile® in USA, 550+ global partner carriers. Cellular and data hosting service provided by METER4G
Specifications: 4G LTE-M and NB-IoT cellular
Coverage: AT&T® in USA. Cellular and data hosting service provided by METER
Mobile communication Bluetooth 5.2 supporting Bluetooth Low Energy protocol
GPS communication (ZL6 and ZL6 Pro) Type: Integrated 56-channel GPS/QZSS receiver
Update: Daily (automatic) and on-demand (manual)
Accuracy: ±3 m, with good sky view
Dimensions Length: 14.9 cm (5.9 in)
Width: 6.3 cm (2.5 in)
Height: 25.0 cm (9.9 in)
Enclosure material Weather-, impact-, and UV-resistant polymer
Enclosure rating IP56, NEMA 3R
Enclosure access Hinged door with latches and eyelets for lock or zip tie
Sensor input ports 6 (supports METER analog, digital, or pulse sensors)
Sensor port type 3.5-mm stereo plug connector
Memory type Nonvolatile flash, full data retention with loss of power
Data storage ZL6 Basic: 2 MB (20,000 to 30,000 records depending on configuration)
ZL6 and ZL6 Pro: 8 MB (40,000 to 80,000+ records depending on configuration)
Battery capacity ZL6 Basic: 6 AA alkaline batteries
ZL6 and ZL6 Pro: 6 AA NiMH or alkaline batteries
Battery life Alkaline: 3–12 months depending on configuration
NiMH: 3+ years with unobstructed view of sun. Charging through solar energy harvesting or USB
Operating temperature range Minimum: –40 °C
Maximum: +60 °C
COMPLIANCE Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)

Additional information