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The compact data logger for humidity and temperature measurement offers high precision and reliability at a reasonable price. The HL-20 series is easy to use and deployable in a wide range of applications. Thanks to its integrated batteries, the HL-20 works completely independently and offers its users maximum flexibility.
Applications: Warehouses, factory halls, museums, office buildings, clean rooms, shipping, libraries, test facilities
Features
• Highest accuracy at 0.8 %RH and 0.3 ˚C
• Outstanding long term stability
• 20,000 data point memory with date & time stamps
• Programmable alarm limits
• Programmable recording intervals
• Psychrometric calculations of dew and frost point values available
• FDA 21 CFR Part 11 / GAMP 4 compliant
• UART interface
• Long battery life
OPERATING RANGE: -10…60 °C / 0…100 %rh
ACCURACY AT 23 ±5 °C:
±0.8 %rh @ 10...60 %rh / ±0.3 K
±1.3 %rh @ 60...100 %rh / ±0.3 K
MEASURING RANGE WITH INTEGRATED PROBE: -10…60 °C / 0…100 %rh
POWER CONSUMPTION: 3x AA (1.5 V) alkali battery
LONG-TERM STABILITY: <1 %rh / year
RESPONSE TIME T 63: 3 min. (typically)
PSYCHROMETRIC CALCULATIONS: Dew or frost point
MEASUREMENT INTERVAL: 5 sec. to 1 hour in 5 sec. increments
MEMORY SIZE: 20000 data values (%rh/°C, Date, Time)
STATUS INDICATOR LED: 5 sec.: Green flash when recording data, red flash for out-of-limit value or logger problem
COMMUNICATION INTERFACES: Mini USB (UART)
ENCLOSURE MATERIAL: ABS
IP PROTECTION RATING: IP40
FDA/GAMP COMPATIBILITY: FDA 21 CFR Part 11 and GAMP compatible
DIMENSIONS: 130 x 72 x 32 mm