SC-R10GX: 01. Special construction site receiver for calling elevator. With storage battery normal work without connecting power supply, 5-6 hours of standby time. Can also work with power adapter ^^ 02. Registred number can not be register again, avoid repeated registration to the same number. 03. Display 3 groups of double-digit number at the same time ^^ 04.
Prompt modes: Dingdong, Alarming sound, voice report. 05. Can work with 199 pagers at most ^^ APE 500: 01. 360 degree waterproof. Sturdy construction, stable performance, sun-protection, dust proof, antiknock ^^ 02. Long transmitting distance, 150ft in the building, 3000 ft in the open air. 03. Can change numbers easily, strong reusability. 04. Can mark the number and floor