The compact data logger for humidity and temperature measurement offers high precision and reliability at a reasonable price. The HL20 series is easy to use and deployable in a wide range of applications. Thanks to its integrated batteries the HL20 works completely independently and offers its users maximum flexibility.
Features • Range of application: -10…60 °C 0…100 %rh • 20'000 data point memory • Freely selectable logging interval 5 s…1 h • Integrated clock enables timestamp for every measurement • Adjusted at 10 35 80 %rh and 23 °C • Programmable alarms • Battery operation • Interface (UART) for connection to PC • No software
The set consists of: • HL-20D • Battery • Cable AC3006
Product Specification
Accuracy at 23 ±5 °C
±0.8 %rh @ 10...60 %rh / ±0.3 K ±1.3 %rh @ 60...100 %rh / ±0.3 K
Operating range
-10…60 °C / 0…100 %rh
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