... :160*160 Dot matrix LCD Memory:EEPROMS torage RLM-I Radon measurement instrument Technical parameters 1, Power supply:220VAC/5VDC,1APower ... , Measuring range:0~999999Bq·m--36, Uncertainty:<15%(When the radon concentration>200Bq·m-3)7, Sensitivity:70cpm·Bq-18, Working ... %RH13, Size:385mm×370mm×235mm14, Weight:3.5kg RLM-I Radon measurement instrument