Get exclusive volume discounts, bulk pricing updates, and new product alerts delivered directly to your inbox.
By subscribing, you agree to our Terms of Service and Privacy Policy.
Direct access to our certified experts
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
