Catalog > Internet of Things (IOT) Related Products > More Platforms Sonoff GPRS/GSM Smart Switch Sonoff GPRS/GSM Remote Power Smart Switch SONOFF GPRS/GSM SMART SWITCH Sonoff GPRS/GSM Remote Power Smart Switch Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview Sonoff G1 is a GSM smart power switch that allows users to remotely turn on/off any connected appliances by Android and iOS app eWeLink via GPRS network.Different from other Sonoff products that have to connect to WiFi or LAN, G1 supports to be inserted with a SIM card (GSM/GPRS:800/900/1800/1900MHz) and use the 2G GPRS network to control connected appliances. The 3G and 4G card can also work on 2G network. Please make sure your area has covered with stable 2G network signal. Users can apply the wireless switch to modern agriculture like greenhouse light control, watering machine, oxygen pump. They can also apply the smart switch to pet feeding control, server room control, roller shutter, etc.Note: Some countries have stopped providing with 2G networks, like America. Features Support SIM Card – GSM/GPRS:800/900/1800/1900MHzControl with GPRS data–Communicate with Cloud over GPRS network, no WiFi neededRemote ON/OFF – Turn electrical devices on/off from anywhereApp Support – Free iOS and Android mobile App eWeLinkSync Status – Real-time device status provided to AppTiming – Set scheduled/countdown timers to turn on/off at specified timeShare Control – Control your smart home together with your familyScene – Turn on/off a gang of devices with one tapSmart Scene – Triggered on/off by temperature, humidity or other environmental conditionsWide Applications – modern agriculture, pet feeding, server room control, roller shutter, etc.Voice Control – Works perfectly with Amazon Alexa, Google Home Specifications Power Supply : 90~250V AC (50/60Hz)Max. Current : 16AMax. Power : 3000WWeight : 100gProduct Size : 114 x 52 x 32 (mm)SIM card (GSM/GPRS : 800/900/1800/1900MHz)Network : Only 2G network supportedOperating Humidity : 5%-90%RH, Non-condensingOperating Temperature : 0ºC-40ºC(32°F-104°F)Enclosure Material : Fire-retardant ABS V0Gang : 1Certification : CE, RoHS Downloads Datasheet - SME SONOFF GPRS-GSM SMART SWITCH PDF File 407.57 KB References