Rotronic Hygrolog- HL-NT3 Temperature Humidity data logger

In stock


Rotronic Hygrolog- HL-NT3 Temperature Humidity data logger and dew point can be used with any of the HygroClip 2 probes. This data logger can monitor up to 7 probes as well as up to two external on/off contacts. When used together with the validated ROTRONIC HW4 software, the HygroLog HL-NT data logger complies with FDA 21 CFR part 11 electronic signatures (ERES) and regarding electronic data records.

Applications: Clean rooms, production areas, storerooms, residential, office rooms, server rooms, and shipping

Request Quote Image

Rotronic Hygrolog- HL-NT3 Temperature Humidity data logger has two additional external probe inputs. Further using a docking station probes can be connected to the logger.

Features of Rotronic Hygrolog Data Logger:

  • FDA CFR 21 Part 11 /GAMP 4 compliance
  • Outstanding accuracy and long-term stability
  • Unlimited memory with Flash Card
  • Display of measured values
  • Interchangeable sensors for humidity and temperature
  • Large range of probes
  • User-friendly validated HW4 software
  • Can use all HygroClip2-compatible probes
  • HygroLog HL-NT3 with the possibility to connect two additional external probes
  • Probes changed in just seconds
  • Display of data on a clear, backlit graphic display with trend indicator
  • Optional display and keyboard for measurement display, status display, operation, adjustment and view of logged data

Additional information

Weight 1 kg


Model No


Measuring Parameters

Humidity, Temperature


-30℃ to 70℃, With Display -10 to 60 °C




0 to 100% RH


Max. ±1.5 % RH



Temperature Sensor

PT100 1/3 DIN Class B

Humidity Sensor

Hygromer IN-1

Number of probe slots


Probe Protection

Protective cap and probe-specific filter

Operating Temperature

With alkaline battery (-10 to 50 °C), With lithium battery (-30 to 70 °C)

Operating Humidity

Depends on probe, max. -100°C to 200 °C

Measurement Interval

between 5 s and 24 h

Memory Mode

Start/Stop/Continuous/Text with timestamp

Alarm Indicator

Visual indicators (LED, two-color) and beeper

Power Supply

9V battery ≥ 500 mAh or externally via docking station

Battery Life

>1 year (with 1 HygroClip2 probe, 15 min. data saving interval, without display)


LCD full graphic display

Storage Medium

32 MB Flash Card (up to 1 GB possible)

Storage capacity

With 32 MB Flash Card 1.504.000 data points in protected mode, With 32 MB Flash Card 800.000 data points in text mode

Event Logging

All user actions, alarms, programming

Audit Trail

Full FDA CFR 21 Part 11 / GAMP4 compliance


Probe adjustment in instrument possible

Access to instrument (PC)

Via docking station


AC adapter, RS232, RS485, USB via docking station (depending on model)

IP Rating

IP 65




Standard: HW4-E / Professional: HW4-P


156 X 109 X 42 mm


300 Grams

Be the first to review “Rotronic Hygrolog- HL-NT3 Temperature Humidity data logger”


There are no reviews yet.

Main Menu


Rotronic Hygrolog- HL-NT3 Temperature Humidity data logger