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 1 year (1 h log interval, room temperature)
Humidity sensor ROTRONIC HYGROMER® IN-1
Temperature sensor NTC
Pressure sensor Bosch BMP280
Display refresh rate 5 sec. (Standard)
(when logging same refresh rate as log interval)
Display type LCD, 2 lines
LED indicator 2 LEDs
Right LED flashes green during data logging
Left LED flashes red when alarm limits breached or low battery
Measurement interval 30 s…24 h
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

Want to learn more about our products?
We will be pleased to personally advise you.

+44 1293 571000

Contact Information

* Required Fields

Privacy Notice: By submitting the form, you agree that your data will be used to process your request (further information and revocation instructions can be found in the privacy policy