General The X250-2 impact data logger is now available with a tough weatherproof aluminum enclosure for those demanding test environments that need more than just a plastic case. The heavy duty case is machined of 6061-T6 aluminum and anodized to maintain corrosion resistance. The X250-HD includes the X250-2 3-axis self-recording 250g impact accelerometer. The external button, the visible status LEDs, and watertight mini-USB connector means there is no need to open the enclosure to operate the device or retrieve the data. The enclosure houses a 1500mAH lithium-polymer rechargeable battery providing over 7 times the normal X250-2 operating life. More information is available in the HD Enclosure specification document (pdf).