... 5~+40ºCRelated humidity: 95%(non-condensing)Ordering InformationH6221 Series GSM/GPRS modem has been used at many circumstances. Considering the application ... Dual band. +5VDC, +7. 5~26VDC Optional. GPRS MODEMH6221-WRS-232 Interface, Wavecom module inside, 900/1800 Dual band. +5VDC, +7 ... +7.5~26VDC. H6221-M2RS-232 Interface, Moto G24 GPRS module inside, 900/1800 Dual band. Either +5VDC or +7 ...