The Alber Cellcorder CRT-400 Cell Resistance Tester is a handheld cell voltage and resistance tester that measures and records cell float voltage, internal cell resistance, and intercell connection resistance.

Alber Cellcorder CRT-400 Cell Resistance Tester features:

• Float Voltage Readings - The CRT-400 measures voltage applied during full float operation. The voltage range covers all cells or modules up to 20 volts, with accuracy to four full digits.
• Internal Cell Resistance - The CRT-400 applies a momentary load and calculates internal cell resistance by determining instantaneous voltage drop and load current. Algorithms make this measurement possible on cells floating on-line or off-line.
• Intercell Resistance - The CRT-400 measures the resistance between two electrically connected cell terminals. The measurement consists of connector resistance and contact resistance at the points of connection to the cell terminals.
• Auto Ranging - The CRT-400 automatically selects the correct voltage range, load resistor, and test time.
• Data Extraction and Analysis - After testing, transfer data to the PC via Flash drive or IR interface. Trending software analyzes test data, displays results in graph or tabulated formats, and saves and prints reports. 

IrDa allows wireless communication with the Alber DMA-35-CRT Hydrometer with Data Logging.