Features: Type: single tool with counter Input voltage: 100-240v Output voltage: 20-30v two stage Max. Number of screwdrivers: one Dimensions - imperial: 5.0 x 8.2 x 3.0 in. Dimensions - metric: 127 x 208 x 76 mm Weight - imperial: 4 lb. Weight - metric: 1.8 kg Esd safe: no Fuse: 10a/250v (one spare) Tool series compatibility: bl The HIOS BLOP-STC3 Counting Electric Torque Assembly Screwdriver Power Supply is compatible with the BLG-OPC Series driver. Switchable output voltage provides two-speed option. Buzzer to indicate screw tightening complete and count timer function, counts number of times screw tightened from 1 to 99. Can be used as a normal power supply by disabling the count function. (Applicable only to BLOP-STC3 and CLT-70STC3). Control input, output, and error output. CE Certified, RoHS compliant.