Bluetooth connection to iOS devices Measurement direction: Right screw, left screw Torque adjustment range (N・m): 6 to 30 Minimum scale (N・m): 0.01 Total length (mm): 211 Drive angle (mm): 9.5 Head width (mm): 22 Torque accuracy: Right screw, left screw ±4% + 1位数字(数字= 小显示单元) 电源(V):锂电池CR123A x 1