Digital Counter Sensor for Commercial Door Open Sensor

We set out to build the world’s best Long Range Wireless Temperature Humidity Sensor.  Introducing NCD’s first long-range wireless temperature humidity sensor, boasting up to a 28 Mile range using a wireless mesh networking architecture.  High-Accuracy Honeywell HIH9130 wireless temperature humidity sensor.

Door Alarms & Entry Alerts Secure Your Home & Business

Smart entrance counter solution - Infineon Technologies

Types of Door Access Control Devices

VersaTile Open Door Sensor - WebstaurantStore

[Out of the Box] This door chime has been paired before delivery. No need for wiring or electrician installation: simply plug the receiver into the

Door Chime, Door Sensor Chime for Door Opens – Door Ringer with 500ft Operating Range 52 Chime Adjustable Volume Mute Mode LED Indicators –Entry Alert

Container Door Sensor - Cellocator

Automatic Door and Counter Prototype

Automatic Door Opening and Closing System Using IR Sensor and

Comparing Proximity Sensor Technologies

Power supply:DC12V Hall sensor:Pusle signal,NPN 3 wires normally closed Counting:Plus or minus Counting value be retained when power failure.

DIGITEN DC 12V 4 Digital Red LED Counter Meter Up Down+Hall Proximity Switch Sensor NPN