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2.1  Key Functions and Features
2.2  Benets of Using 850EMT 
The 850EMT can be used as a desktop unit, clipped to a trouser belt or be carried using a shoulder strap. 
Advantages of using the 850EMT are:
The key functions and features of the 850EMT are:
•  Two-way communication via infrared (IR) to 850 Series 
detectors and modules
•  Touch screen Backlit colour LCD display
•  Portable with built in charger
•  Accepts detectors onto the tool or ancillary 
programming lead for modules
•  Read/write detector / ancillary address
•  Displays model number and the SKU
•  Displays temperature / CO levels / smoke obscuration
•  Tests the detector remote LED and control outputs
•  Monitors ancillary outputs
•  Reads the device status
•  Changes the device settings
•  Session Programming - enables programming of 
multiple devices in succession
•  Test Functions - Allows the device’s inputs and outputs 
to be tested and the blink-on-poll setting to be changed
•  Entry buttons have black border or red (when selected) 
which respond to touch
•  DC IN +12 V - External connection from the car 12V 
socket or mains adaptor
•  In-built stylus to select menu options by touching the 
LCD screen.
•  Simplies installation and commissioning
•  Bidirectional IR link allows remote detector 
programming, interrogation and testing
•  Improves health and safety by reducing the need to 
work at height
•  Reduces the possibility of Engineering error.