What's in the box:

Temperature Alarm Sensor Wired Temperature Detector Conventional Fire Alarm Heat Detector For Fire Home Security Alarm System (Standard)

Features:
This temperature detector is designed as the theory of sensing environment temperature.
We adopt advanced SMT producing technical process and special design.
It has dustproof, avoid mis-alarm, anti- electronmagetic interference etc. functions.
It has the stability on designing.
It is appropriate for house emporium, hotel, warehouse and in-room surroundings.

Specifications:
Sensor type: High accuracy temperature sensor
Working voltage: DC 12V-24V
Static current: 50uA
Alarm current: 50-70mA
Alarm temerature: 57?
Detect area: 20?
LED flash: every 5 seconds
Output way: System on line alarm
Alarm reset: Breaking power reset
Installation method: Ceiling
Working temperature: 10C~+85C
Item Size: Approx. 10.3 * 10.3 * 5.1cm (L*W*H)
Item Weight: Approx. 128g / 4.5oz

Package Information:
Package Size: Approx. 11 * 11 * 6cm / 4.3 * 4.3 * 2.4in
Package Weight: Approx. 164g / 5.78oz

Package List:
1* Temperature Detector
1* Set of Mounting Screws
1* User Manual