RKI PS2 Fixed System Gas Detector — Major Safety Skip to content

RKI PS2 Single Point Fixed System LEL Monitor

by RKI
SKU 73-1021RK-01
Sale Sale
Original price $472.50
Original price $472.50 - Original price $472.50
Original price $472.50
Current price $450.00
$450.00 - $450.00
Current price $450.00

The RKI PS2 is a perfect low cost solution for brewery applications and ethanol detection. Simple to use, easy to install. It comes calibrated and set from the factory.

Also great for hydrogen detection in battery rooms, or for LEL level detection of a variety of flammable or solvent vapors in general industry.

It utilizes a MOS (metal oxide sensor) for long lasting and low maintenance detection of LEL levels of hydrocarbons (like methane or ethanol).

It even comes with two alarm levels for increasing gas or vapor levels for LEL level detection of flammable vapors. Each of the alarm levels activate a 12 amp relay inside the unit, and terminals are provided for wiring the relay to activate an external alarming device or some other device such as a ventilation fan. Note that the relays are dry contacts--you will have to supply either AC or DC power to them.

It is housed in a durable plastic enclosure with flanges provided for wall mounting and is designed with easy access wiring hubs on the bottom of the unit. The front of the PS2 contains three lights; Pilot, Alarm 1, and Alarm 2. An internal audible alarm (85 db) is also built in which activates in a gas alarm condition.

The standard PS2 is supplied with the gas sensor located on the end of a 30 foot cable (other cable distances are also available). Each unit is powered by 115 VAC and comes with a 6' power cord.


  • LEL detection ranges available for many gases
  • 30 Foot Remote Cable
  • 2 alarm levels
  • Stand alone system
  • Input voltages: 115 VAC standard
  • Audible and visual alarms
  • Compact design
  • Simple installation
  • AC version equipped with power cord
  • Dry Relay contacts rated 12A @ 115 VAC - 2 Relays (Alarm 1 & Alarm 2)
  • Low maintenance

Ships in 7-10 business days from factory. Requires setup and calibration.

The unit will require calibration in the field at regular intervals (see manual). To calibrate the most popular version of the PS2 (Ethanol) this calibration kit is needed: Ethanol PS2 Calibration Kit