Temperature and humidity data logger with LCD display

DLHT is a temperature and humidity datalogger equipped with a graphical and alphanumeric LCD display and a small keyboard to program missions and access the data. The data logger may be programmed from a PC, using its software by means of a USB cable connection to the device. This device is equipped with audio and visual alarms (LEDs) that indicate when the temperature has exceeded the pre-set minimum and maximum thresholds. A third led warns you when the batteries need to be replaced. DLHT operates using replaceable batteries and its low power consumption means they do not have to be replaced very frequently.

The data logger can be supplied with verification of calibration certificate with Accredia (Italian reference center, NIST equivalent) traceability.

The LCD display and the USB interface make this device an autonomous product, and does not require the use of a PC (to which you can nevertheless always save and edit data). Used with the E-Log Alarm software it gives you the possibility to get instant email alarms (a PC with internet connection needed).


DLHT - Complete software (USB drivers included)



Main features

  • Graphic and alphanumerical LCD display
  • LED and sound real time alarms for temperature and humidity can be set by the operator
  • Display actual temperature and humidity, all data recorded in table and graph and all occurred alarms
  • Long life batteries (2 years with standard use)
  • Replaceable batteries: 2 X AA 1,5 V


  • High accuracy and precision
  • Compliant with HACCP regulations
  • Provided with calibration certificate Accredia (NIST equivalent) traceable (on demand)
  • Wide memory with circular memory function too
  • Long life battery
  • Software compatible with CFR 21 Part 11 regulation

The system

DLHT can be used with 2 software and the system is made up by:

  • DLHT data logger
  • DLHT software (32 bit systems only)

Dimensions 68 x 110 x 27 (mm)
Weight 143 gr
Temperature range -20 °C ÷ +65 °C
Standard calibration points (temperature) 5/30/50°C
Temperature resolution 0,25 °C
Temperature accuracy ± 0,4 °C from +5 °C to +40 °C / ± 1 °C from -20 °C to +65 °C
Humidity range 0% ÷ 100% RH (not condensing)
Standard calibration points (humidity) 30/50/70%
Extra calibration points (humidity) Within the range 10% ÷ 90% RH
Humidity reslution 0,1%
Humidity accuracy ± 3% RH from 10% to 90% / ± 4% from 0% to 100%
Memory (n. of acquisitions) 66.000 (1 channel) / 33.000 (2 channels)
Acquisition step From 1 every 5 seconds up
Battery life Nearly 2 years with 15 minutes acquisition step
Battery type 2 batterie stilo AA da 1,5 V
Software&Mobile App DLHT, E-Log Alarm


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