BL-1D - Data Logger for barometric pressure, humidity temperature and dew point

Barometric pressure, humidity temperature and dew point data logger. Compact, dependable and inexpensive..


  • 3 types available:
    • BL-1D: hPa, °Cdp, %RH, °C
    • HL-1D: %RH, °C
    • TL-1D: °C
  • High measurement accuracy of ±3.0 %RH, ±0.3 °C, ±3 hPa
  • Compact with high level of IP protection
  • High storage capacity: 32,000 lines
  • Programmable start and stop times via HW4 software
  • Free evaluation and configuration software HW4-lite
  • FDA 21 CFR Part 11 / GAMP 5-compliant HW4 software
  • EN 12830 certified (V3.0 devices)
Accuracy at 23 ±5 °C ±3.0 %RH / ±0.3 °C / ±3 hPa
Range of application -30…70 °C / 0…100 %RH / 300...1100 hPa
Power consumption 1x CR2 battery
Battery lifetime 3 years (at a logging interval of 1 h)
Humidity sensor ROTRONIC HYGROMER® IN-1
Temperature sensor NTC
Pressure sensor Bosch BMP280
Measurement interval 30 s…24 h
Display type LCD, 2 lines
Display refresh rate 5 sec. (Standard)
(when logging same refresh rate as log interval)
LED indicator 2 LEDs
Right LED flashes green during data logging
Left LED flashes red when alarm limits breached or low battery
Battery indicator Yes
HW4 compatible V3.9 and higher
Storage capacity 32,000 lines
Communication interfaces Mini USB
IP protection rating IP67
FDA/GAMP compatibility FDA 21 CFR Part 11 / GAMP 5 conform software HW4
Standards EN 12830
Dimensions 90 x 60 x 23 mm
Weight 85 g

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+41 44 838 11 11

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