A radio-frequency peak amplitude detection circuit includes a load capacitor, a current source that charges the load capacitor and set the bias current for the field effect transistors, and a pair of field effect transistors. When the monitor can not receive the response message after placing a certain interval, it stores the link as an unsuccessful transmission. The solvent contains at least one type of high-viscosity solvent having a viscosity of 10 to 200 mPa\xb7s at 20\xb0 C. Data bytes may be commands, information, or other indicators useful to the receiving device. The sense amplifier equalization signal is discharged into the sense amplifier enable signal.