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Laser Diode Temperature Controllers Low noise, bipolar output up to 120W Long term temperature stability as low as 0.005°C Adjustable TEC current limits Supports most thermistor, IC, and RTD temperature sensors Configurable sensor current Direct temperature display (°C) on most models LDT-5900 Series Laser Diode Temperature Controller Model LDT-5412 LDT-5525 LDT-5948 LDT-5980 Output Power 4W 24W 60W 120W Output Current 2A 4A 5A 10A Output Voltage 2V 6V 12V 12V Temperature Stability ---------- <±0.01°C <±0.005°C <±0.005°C Temperature Control Range ---------- -99.9°C to 199.99°C -50°C to 250°C -50°C to 250°C      Thermistor Sensor Yes Yes Yes Yes      IC Sensor No Yes Yes Yes      RTD No Yes Yes Yes TEC Measurement Display Current, resistance Temperature, current, resistance Temperature, current, voltage, AC resistance, resistance Temperature, current, voltage, AC resistance, resistance Control Loop Hybrid P-I Hybrid P-I Fully adjustable digital PID Fully adjustable digital PID Auto-Tune PID Optimization No No Yes Yes 4-Wire Voltage Measurement No No Yes Yes GPIB/IEEE-488 and RS-232 Interface No No Yes Yes