IC-WG26 iButton Wiegand Reader is sealed and is not afraid of water and dust. Degree of protection IP65Case  material  is Polyamide.

It is a good conductor of heat and melts at a high temperature. So when you set it on a metal surface he is not afraid of fire, because he manages to convey all the warmth of the metal surface .

The size of the reader is only 25 mm. It is above the surface only 3 mm. It cannot be brought down from the surface.

The reader is impossible to remove from the outside. And even the destruction of his body impossible to gain access to the conductors with which it is connected.

Product Parameter	Parameter Description
JINYINGModel	IC-WG26
Product Name	Embedded IC iButton Reader
Operating frequency	13.56 MHz
Type readable cards	Mifare, Ultralight, 1K, 4K, Plus
Range of card reading	2-6 cm
Protocol for connection to the controller	iButton (Dallas Touch Memory, emulation DS1990A), Wiegand 26
Power supply	6 - 18 VDC
Current consumption	35 mA
Light indication	Red LED
Housing material	Polyamide
Unit Weight	0.027KG
Standard Package	300PCS/carton
Carton Weight	8.1KG
Carton Size	26*36*44(cm)

In standby mode, there is a red light. 

At the moment of touch by key fob, the red light will turn off for one second. If you connect the yellow wire (LED) with less power (GND) the led will shine only when read key fob.

also We have Metal Base for iButton Card Reader:

?