Detection and locating, measuring equipment
Water leak detectors, cable and pipe locators

Two-channel digital thermometer DT-511

Digital thermometer DT-511 is used to measure the temperature of different medium, relative humidity of the air by direct contact of the probe with measurement object.

DT-511 is a two-channel device working simultaneously with two probes.

Thermometer consists of electronic unit and replaceable probes.

As thermosensitive elements in probes thermocouples are used.

As measuring element in relative humidity probes capacitive humidity sensors are used.


  • Simultaneous measurement of humidity and temperature in any combination through two channels with one device;
  • Measuring the temperature with resolution 0,1°С;
  • Measuring the relative humidity with resolution 0,1%;
  • Changeable probe;
  • Working simultaneously with two probes;
  • 9 memory cells for storing measurement readings;
  • Measuring the atmospheric pressure;
  • Displaying the temperature of the thermal compensation sensor on the screen;
  • Displaying the air temperature when using the humidity probe
  • Fixating measured temperature and humidity in the device's memory;
  • Displaying the average temperature and humidity for a given number of measurements;
  • Displaying the maximum temperature and humidity (for a given number of measurements);
  • Displaying the minimum temperature and humidity (for a given number of measurements);
  • Setting measured temperature and humidity limits;
  • Sound indication after reaching the set level of measured temperature and humidity;
  • Automatic saving when switching off the current, averaged, max, min supply voltage, remaining operating time of the device.
  • 1 year manufacturer's warranty;
  • Powered by standard AA batteries.



DT-511 is used for highly precise measurement of temperature, humidity and dew point temperature by direct contact with the measurement object.

Due to the possibility of changing the probe, measurements can be carried out for almost any media: liquid, dry, solid.

Improved devices allow using high-precision probes for:

  • high-precision surface measurements;
  • high-precision air temperature measurements;
  • work with thermocouples of types K, L, B, R, S;
  • high-precision atmospheric pressure measurements;
  • simultaneous high-precision measurement of temperature and humidity.


Parameter Value
Measured temperature range -100...+1800 (depends on the type of used probe)
Relative instrumental error ±0.5 % +least significant digit value
Resolution 0.1 °C
Number of replaceable probes types 24
Measured relative humidity range, % 0...100
Absolute instrumental error of relative humidity measurement, % 3
Terms of use: -20...+50 °C
Relative humidity: less than 80 % at T = 35 °C
Atmospheric pressure: 86 – 106 kPa
Voltage 1.5x2 V

Connectable probes

Connectable probes:

  • Penetration probe PP-150
  • Penetration probe PP-300
  • Penetration probe PP-500
  • Enforced penetration probe EPP-150
  • Enforced penetration probe EPP-300
  • Enforced penetration probe EPP-500
  • Enforced penetration probe EPP-1000
  • Liquid penetration probe LPP-3000+
  • Viscous fluid penetration probe VPP-3000
  • Surface probe SP-150
  • Surface probe SP-300
  • Surface probe SP-500
  • Surface probe SP-1000
  • Bent surface probe BSP-300
  • Bent surface probe BSP-500
  • HT surface probe HTSP-300
  • HT surface probe HTSP-500
  • HT surface probe HTSP-1000
  • High-precision surface probe HPSP-150
  • High-precision surface probe HPSP-300
  • High-precision surface probe HPSP-500
  • Air probe AP-150
  • Air probe AP-500
  • Air probe AP-1000
  • High-precision air probe HPAP-150
  • Thermocouple probe TCP
  • Temperature & humidity probe THP-150
  • Temperature & humidity probe THP-500
  • Temperature & humidity probe THP-1000
  • Portable temperature & humidity probe PTHP
  • Flexible temperature & humidity probe FTHP
  • Atmospheric pressure probe APP

Standard set

Basic set:

  • Digital thermometer DT-511 - 1
  • 1.5 V battery, type AA - 2
  • Operation manual (in English) - 1
  • Packaging - 1



  • Battery charger for AA batteries
  • Battery AA 1.2 V (2850 mA)
  • Case 53141 for a thermometer with 1 probe
  • Case 53142 for a thermometer with 2 probes
  • Case 53143 for a thermometer with 3 probes
  • Case 53134 for thermometer with 4 probes


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