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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.
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 supply/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 |
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