Appearance - M100gs GSM Modem | Network GSM Phase2/2+ GSM(EGSM)900MHz DCS(GSM)1800MHz Function Audio, Data Transform, Fax, SMS Power Supply voltage range 5 - 25VDC(9V suggest) Class 4 (2W) for EGSM900 Class 1 (1W) for GSM1800 Dimension Dimension: 75*50/72*16mm Weight: 200g | Shell Steel shell: good electromagnetic shield and , heat radiate performance Electromagnetic Compatible Electrostatic Discharge (ESD): 3 class Radiated, radio-frequency, electromagnetic field immunity test: 3 class Environment Storage Temperature: -40 ~ 85°C Working Temperature: -30 ~ 75°C Humidity: 95% (non-condensing) |