Quatrosense Environmental Ltd. (QEL) products

The Q-Controller is a multi-channel controller and alarm unit that utilizes both digital and analog communications to interface with a maximum of 128 remote digital QEL transmitter/sensor inputs, 128 analog inputs, 128 relay inputs, providing 128 analog outputs and 128 relay outputs.

The M-Controller is a multi-channel controller and alarm unit that utilizes both digital and analog communications to interface with a maximum of 32 remote digital QEL transmitter/sensors, and 8 analog transmitter/sensors.

The Q4C is a multi-channel controller display and alarm unit that utilizes digital communications to interface with a maximum of four remote digital QEL transmitter/sensors.

The CTS-M5 Series is a microprocessor based transmitter. It uses an Electrochemical gas sensor to detect a variety of gases. Typical applications are enclosed parking facilities, refrigeration rooms and oxygen storage rooms.

The Q5 Series smart toxic/combustible gas sensor/transmitters use various sensing technologies to detect a wide assortment of gases. The units are housed in a NEMA 4X enclosure with integral relays and buzzer that will meet the most stringent of applications.

The B5 Series smart toxic/combustible gas sensor/transmitters use various sensing technologies to detect a wide assortment of gases. The units are housed in a NEMA 4X enclosure with integral relays and buzzer that will meet the most stringent of applications.

The QTS-1710 Series utilizes catalytic pellistor bead technology for the measurement of combustible gases. The standard sensor is resistant to poisoning substances such as silicones, sulfur compounds, and chlorinated compounds.

The QIRF Dual Channel Freon gas detectors are designed easily configured to meet the International Mechanical Code, ASHRAE 15, and B52 requirements.

The QTS-6000 Series is the latest advancement in economical loop powered analog output toxic gas transmitters. This universal transmitter can be easily configured via solderless shorting links for any of a wide variety of plug-in electrochemical sensors.

The QTS-1300 Series is the latest advancement in low cost loop powered analog output oxygen transmitters. The QTS-1300 Series is the latest advancement in low cost analog output oxygen transmitters. The compact sensor elements have a typical life span of two to ten years, are easily field replaceable, and do not require electrolyte replenishment. With rapid response to the target gas and stable zero readings, these sensors retain their sensitivity to oxygen. The two wire transmitters are available in a variety of ABS or explosion- proof Nema rated enclosures. The transmitter operates on a power supply range of 12-36 VDC with an output of 4-20mA DC into 750 Ohms (at 24 VDC), making it useable with any standard intrinsic safety barrier. With integral RFI and EMI protection, this is the most robust  transmitter available in its class.