# AR 204_LR Digital Precision Thermometer with Differential Measurement (with 2 Type K Thermocouples)<\/p>\n
The Leitenberger AR 204_LR is an excellent quality, robust handheld digital thermometer, specifically designed for professional and precise differential measurements, ideal for example for checking air conditioning systems. The device has two measurement channels and two included K-type (NiCr-Ni) thermocouples, guaranteeing reliable and accurate temperature data logging.<\/p>\n
Manufactured with the \u201eMade in Germany\u201d quality assurance, the AR 204_LR features an extremely user-friendly design. Switching between the two channels and differential measurement is simple and menu-driven, allowing the user quick access to the desired measurement mode.<\/p>\n
## Main Features and Advantages<\/p>\n
* **Two-Channel Measurement:** Two independent measuring channels allow for simultaneous monitoring of the temperatures at two different points.
\n* **Differential Measurement:** Exceptionally suitable for the precise determination of the temperature difference (\u0394T) between two temperatures, which is essential for checking the efficiency of heating and air conditioning systems.
\n* **Excellent Readability:** The large LCD display with 16 mm digits and backlight ensures easy reading of the measurement values even in poor lighting conditions. The display also shows the scale of the measurement range.
\n* **Robust Design:** The device has a high-quality and durable housing that withstands the demands of frequent professional use.
\n* **Customizable Settings:** The menu system offers several setting options, such as selecting the units of measurement (Celsius, Fahrenheit, Kelvin), filter functions for stabilizing the measurement, and automatic on\/off to optimize battery life.
\n* **Fast Sample Rate:** A measuring interval of only 100 ms ensures that rapidly changing temperature conditions can also be tracked accurately.<\/p>\n
## Technical Data<\/p>\n
The technical parameters of the AR 204_LR device meet the highest industrial requirements:<\/p>\n
| Parameter | Value | Remarks |
\n| :— | :— | :— |
\n| **Part Number** | AR 204_LR | |
\n| **Input Channels** | 2 | |
\n| **Thermocouple Type** | Type K (NiCr-Ni) | |
\n| **Thermometer Measuring Range** | -200 \u2026 +1350 \u00b0C | Full operating range of the device |
\n| **Sensor Measuring Range** | -65 \u2026 +500 \u00b0C | Range of the supplied probes |
\n| **Accuracy** | \u00b1 2 \u00b0C | |
\n| **Resolution** | 1 \u00b0C | |
\n| **Display** | 4-digit LCD display with backlight | |
\n| **Measuring Interval** | 100 ms | |
\n| **Menu Settings** | Units of measurement (\u00b0C \/ \u00b0F \/ K), filter function, Auto ON\/OFF | |
\n| **Current Consumption (max.)** | 50 mA | |
\n| **Power Source** | 4 x 1.5 VDC LR03-AAA (micro) batteries | |
\n| **Operating Temperature** | -10 \u2026 +50 \u00b0C | |
\n| **Storage Temperature** | -20 \u2026 +60 \u00b0C | |
\n| **Environmental Pollution Degree** | Degree 2 | |
\n| **Dimensions (H x W x D)** | 130 x 75 x 26 mm | |
\n| **Weight** | approx. 300 g | Including batteries |<\/p>\n
## Scope of Delivery<\/p>\n
The completely ready-to-use AR 204_LR package includes the following:<\/p>\n
1. **AR 204 Portable Digital Device:** The central measuring unit.
\n2. **Type K Thermocouple Probes (2 pcs):** Two Type K thermocouples suitable for surface temperature measurement, each usable in the range between -65 \u00b0C and +500 \u00b0C.
\n3. **Robust Plastic Carrying Case:** Guarantees the safe storage and transport of the device and accessories.<\/p>\n
This digital thermometer is the ideal choice for refrigeration technicians, HVAC installers, and industrial maintenance staff who require reliable two-channel temperature measurement and differential analysis. German precision guarantees a long service life and consistent measurement results.<\/p>","protected":false},"excerpt":{"rendered":"
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