Key benefits Precise temperature and fan control: independently manage low fan speed and temperature zones with simple button adjustments for stable, repeatable cooling. Programmable convenience: save settings into programs for quick recall, reducing setup time and ensuring consistent operation. Wide voltage compatibility: control panel accepts 8–60 V DC input, making it suitable for a broad range of DC-powered systems. Reliable temperature monitoring: dual independent temperature channels with alternating display and better-than-1°C measurement accuracy. Main features Button-adjustable low fan speed and temperature control zones for flexible, fine-grained control. Large adjustment range with program storage: configure parameters, save them, and load the saved program as needed. Dual independent temperature control: two channels measured and displayed alternately; temperature range −9.9°C to 70.1°C; measurement error less than 1°C. Optional switch-stop alarm: can be enabled to trigger an external AC buzzer on stop events; alarm is off by default. Compatibility and safety notes Control panel operating voltage: 8–60 V DC. This rating applies to the control panel itself. Important: the controller and the fan operate together. The combined system must meet the fan’s performance and electrical requirements; otherwise the fan may be damaged. Verify fan specifications and wiring compatibility before installation. External alarm requires an AC buzzer; the alarm function is disabled by default and must be enabled if required. Typical applications Mobile refrigeration and vans: works with vehicle DC systems (within 8–60 V) to maintain temperature zones and manage fan speed for efficient cooling on the road. Off-grid or solar-powered cabinets: programmable settings and wide DC input range make it suitable where supply voltage varies. Small cold rooms, instrument enclosures, or lab equipment: independent dual-channel temperature control and accurate readings support consistent environmental control. What to check before use Confirm the fan’s rated voltage, current draw, and control method match the controller’s output and the intended DC supply. If using the switch-stop alarm, ensure an appropriate external AC buzzer is available and wired according to installation instructions. Test saved programs and verify temperature readings during initial setup to confirm expected performance and accuracy.