Numeric usb keypad for telephone call hotline emergency phone intercom system for door lock access control source-B721


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Numeric usb keypad for telephone call hotline emergency phone intercom system for door lock access control source-B721
APPLICATION
self-service library self-service kiosk CNC machine
household applications oiling machine charge spot
industrial telephone ATM access control
ticket machine vending machine medical facility
security system fingerprint attendance machine
PARAMETERS
Model number B721
Defend Grade IP65
Keys 12 keys
Vandal resistant IK09
Electrical lifetime > 5 years
Contact resistance 200 ohm (max)
Current Rating appr. 30mA
Power supply + 5V +/- 5%
G.W. 0.20kg approx
Dimensions 93.5mm  * 72.5mm*6.1mm
Frame/keys materials Stainless steel
life span ≥2 million
Elasticity of key 2.5-3N
Key travel ≤100Ω
Atmospheric pressure 60-106Kpa
Operate Temperature -40℃~+85℃
Travel distance 0.45mm
PRODUCT PICTURES
numeric keyboard usb keypad telephone call hotline emergency phone intercom system door lock access control source
numeric keyboard usb keypad telephone call hotline emergency phone intercom system door lock access control sourcenumeric keyboard usb keypad telephone call hotline emergency phone intercom system door lock access control source

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