GSM door opener RTU5015 is a simple designed GSM controller, which can be used to authorize access control, control door, remote equipment switching, parking system, etc. In fact, the GSM door opener RTU5015 can be used in places where systems, machines and equipment need to be opened/closed remotely, just by calling a toll-free phone from a mobile phone.

Features:

1. No telephone charges. The GSM door opener rejects calls from authorized numbers and then performs a switch action on the first "ring ".
2. Multiple applications. (doors, guardrails, guardrails, garage doors, shutters, doors or machines). 
3. Safety - Use caller number for identification, ignoring unknown callers. 
4. It can be operated from anywhere without distance restriction.
5. Adding or deleting users through simple SMS text commands. 
6. A maximum of 99 authorized telephone numbers can be configured. 
7. Two digital input door sensors, motion sensors or other sensors protect your doors and . When any of them triggers, they will send a short message to remind you immediately.
8. The output of a relay grade 3A/240VAC is used to connect the switch of the door or machine.
9. Relay action will return short message confirmation to users, which can be edited by users themselves.