As an Undergrounds Mining Telephones with flashing lamp & horn, it is fully contained within a corrosion resistant cast aluminium weatherproof case with a door providing complete protection against dust and moisture ingress, resulting in a highly reliable product with a long MTBF.
Equiped with horn and beacon, the horn can broadcast remotely for notification, horn works after 1-9 rings (adjustable), shut when handset lifted or call finished. Horn works after 1-9 rings, shut when handset lifted or call finished. The LED Red beacon begins to flash when ringing or in use, attracting attention to the phone when call comes, it could be very useful in the noisy environments.
Document：JR101-FK-HB Undergrounds Mining Broadcasting Telephones Product Technical datasheet
unit size: 204 *334 *126(mm)
Carton size:200*300*440( mm )
Packaging materials: pearl cotton, carton
Gross weight: 7KG Net weight: 6KG