[en] Ionex dosemeter and babyline survey meter were calibrated by using secondary standard source. Calibration factors of ionex dosemeter is slightly independent on the magnitude of dose rate with the uncertainty of +-0.43% at the significant level 95%, and calibration factors of babyline survey meter is dependent on the dose rate for the respective of the three beta rays sources with the uncertainty of +-2.19% at the significant level 95%. Calibration factors will decrease when the energy maximum of beta rays increase. (author)