This item must be purchased with a Helios meter with relays option (PD2-xxxx-xH7), to which the modification will be applied.
This modification will add a red light with horn and a reset button to a Helios large display meter. The red light is programmable to flash or stay steady on and includes a built-in 85 dB horn. The light and horn can be controlled independently of each other via separate relays when hooked up to a device such as a ProVu digital process meter from Precision Digital. The horn can be programmed to silence via a button mounted to the Helios wiring compartment door and the light can be programmed to stay on until the alarm clears.