E2S has added a new product to its intrinsically safe range of sounders and beacons, the IS-pA1 panel mount sounder, which is certified II 1G Ex ia IIB T4/5/6 for use in Zones 0, 1 and 2. The IS sounder is ideal for use as fault indication or process alarm in control panels located in intrinsically safe environments. It produces a 100dB(A) @ 1m continuous 2600Hz tone that can be pulsed externally to produce different signals.