1, Antistatic, waterproof, dust-proof

2,  Color: pearl white+clean blue, pearl white+space silver

3,  Weight:  548g

4,  Signal:  Standard 12groups DTMF

5,  Information-light Voltage:  90-150V

6,  Apply for Environment humidity:  45%-95%

7,  Wateproof grade:  IP66

8,  Outside (Coverage) size:  211X105.5X32.5MM

9,  Inside(Installation) size:  195X89.5X32.5MM

Usage Instructions:

1, No need of picking up the phone, no pollution caused by touch. 

2, Ultra-thin design, and the wall surface angle 0.18mm

3, Touch pressing buttons " SPKR" , which build in telephone transmitter and telephone receiver for answering or hanging up. 

4, Loudspeaker volumn can be adjusted in Low, Medium and High status. 

5, It is designed with the professional software and aspecialized integrated circuit, which comply with standard GB/T15279-2002 and CE requirement. 

Application:

Used in Clean room and dust free environment.