gsm wireless telephone

We are seeking to import 4th generation gate openers compatible with existing GSM gate systems. Interested in verifying if the RTU5025 model remains suitable for current requirements or if newer upgraded products exist.  

Require confirmation whether suppliers are direct manufacturers to ensure product authenticity and technical support capabilities. The solution must support 4G connectivity and telephone call functionality without additional charges.  

Please specify product certifications and compatibility details with legacy access control systems.

Ask about the price of 2 pcs GSM SMS remote switch S130 gsm relay switch, Wireless GSM Switch 110V/5A 240V/3A Relay Outputs, maximum 70 USD for one pc, shipping to Dubai

Looking for wireless alert system for large transportation tracks. Spec's as below: Wireless alarm center, GSM 4G, SIM card, to support 4 - 5 wireless PIR. Programming with SMS or mobile APP. Wireless PIR motion detectors to fit. Output 12V or relay at alarm to drive siren. All alerts sent to mobile app, app allow arm and disarm the system

FWT Fixed Wireless Terminal Quad Band GSM SIM Card Phone Line Desktop Caller ID 32 sim card and 32 fxo port. FWT Fixed Wireless Terminal Quad Band GSM SIM Card Phone Line Desktop Caller ID. Pass it to me. agence

Need an alarm on smartphone (GSM module) for pigsty when it gets too warm. It should work during power failure (battery), call 4 telephone numbers, have a currentless switching contact and a 12v switching input with NC and NO. There's a high - priced local manufacturer, so there's an open market. Maybe can sell some.

Inquiry About Sierra Wireless AirLink GL6100 and GL6110 programmable zte gsm usb modem

How much is the item please?