A versatile GPS-equipped meter includes a GPS antenna and a GPS processing circuit in an existing meter unit. Posture adjusting members are provided that have different shapes according to an attachment angle .theta. of a GPS-equipped meter to a vehicle body frame are appropriately selected so as to point a GPS antenna to the sky regardless of the attachment angle .theta.. In a meter case, an antenna relief part is secured. Accordingly, even if a relative positional relationship between the meter case and the GPS antenna is changed due to a change in the shape of the posture adjusting member, the meter case and the GPS antenna never interfere with each other. Thus, the GPS-equipped meter can be shared with various vehicles without increasing the meter case in size. Therefore, the versatility is improved.