The CHQ-AB range consists of addressable loop-powered Beacons, with high-intensity LEDs and a Fresnel lens design which produces a highly visible flash. 
 
The casings exactly match the Hochiki ESP Sensor range in shape and colour providing seamless integration. 
 
The units can be used on the Standard ESP Base (YBN-R/3), the Base Sounders (CHQBS or YBO-BS), the Base Sounder Beacon (YBO-BSB) or the Short-Circuit Isolator Base (YBO-R/SCI).