ACHEM ALS series Limit Switch Box / Valve Monitor / explosion proof Limit Switch Box / stainless steel Limit Switch Box / Discrete Valve Controller is designed and manufactured by AFL Group based on the state-of-the-art engineering technology and its special patent technology. All of the ALS series Limit Switch box fully meet ISO5211, Namur and IP67 standards. AFL Group is a leading Limit Switch box supplier located in Shanghai area of China. In the light of ISO9001:2000, ISO5211, NAMUR standards and 94/9/EC OF 23 MARCH, EN13980, EN60079-0:2006 EN60079-1:2004 directives, AFL Group professionally manufacture and supply ACHEM ALS series Limit Switch Box / Valve Monitor / explosion proof Limit Switch Box / stainless steel Limit Switch Box / Discrete Valve Controller. Most of them have successfully got the approvals of CE, IP65, NEMA4, 4X, CSA, IECEx and ATEX.

Followings are the main series of the ACHEM ALS series Limit Switch Box:

-ALS200 series limit switch box is suitable for the use of indoor and outdoor with IP67. The mechanical switch, proximity sensor, magnet sensor are all available for this series.

-ALS300 series limit switch box is suitable for the use of indoor and outdoor with IP67. The mechanical switch, proximity sensor, magnet sensor, ASi sensor, DeviceNet sensor and 4-20mA position transmitter are all available for this series.

-ALS400 series flame proof limit switch box is certified for use in hazardous areas (Class I, Div. 1&2, Group A, B, C and D, Ex d IIC T6). The mechanical switch, proximity sensor, magnet sensor, ASi sensor, DeviceNet sensor and 4-20mA position transmitter are all available for this series.

-ALS500 series flame proof limit switch box is certified for use in hazardous areas (Class I, Div. 1&2, Group A, B, C and D, Ex d IIB T6). The mechanical switch, proximity sensor, magnet sensor, ASi sensor and DeviceNet sensor are all available for this series.

-ALV600 series stainless steel flame proof limit switch box is certified for use in hazardous areas (Class I, Div. 1&2, Group A, B, C and D, Ex d IIB T6). Because of the stainless steel (304/316/316L) enclosure, ALS600 series limit switch box / valve monitor can offer excellent resistance to most corrosive chemicals as well as hazardous industrial atmospheres. The mechanical switch, proximity sensor, magnet sensor, ASi sensor and DeviceNet sensor are all available for this series.