The Model PSR-1 Photo-Sensitive Sensor may be used as an input to indicate the presence or absence of light at the sensor location by a change in resistance. The Model PSR1-T Transmitter is a PSR-1 coupled with a 4-20 mA transmitter is ideal for energy savings and cost savings in Building Automation System, BAS, applications. The sensor is designed to be mounted in the end of a weatherproof conduit box.

The Kele RLD-134A HFC Refrigerant Leak Detector is a solid-state HFC detector capable of detecting the presence of escaping refrigerant R-134A in building automation systems or HVAC and industrial applications. An analog output allows interfacing with computer monitoring equipment. An alarm relay is also provided with adjustable set point and jumper-selectable time delay function to prevent nuisance alarms. Four LED’s provide status indication for warm-up, ready, warning, and alarm. When properly installed and maintained, the RLD-134A is designed to be used as part of a control system that helps to prevent the formation of a hazardous environment.

The Telaire/Amphenol Advanced Model DP4 Dew Point Sensors are rugged, compact, and ideally suited for monitoring dew point, wet bulb, or enthalpy in commercial HVAC/BAS applications. Using a capacitive RH sensor and an RTD temperature sensor, the unit’s microprocessor computes the dew point, wet bulb, or enthalpy. Two linear outputs provide a 4-20mA signal for dew point, wet bulb, or enthalpy, and a 4-20 mA signal for dry bulb temperature.

Sensors from Belimo offer trusted reliability, easy installation, and seamless integration with major building automation systems. They are designed with an innovative screwless snap-on cover housing that allows for easy commissioning and provides NEMA 4X / IP65 protection. The range includes accurate sensors for measuring temperature, humidity, pressure, CO², VOCs, and flow in pipe, duct, and outdoor applications.

The 567 Series includes attractive, economical NEMA 1 enclosures designed to house controls and instruments in areas which do not require oil-tight and dust-tight ratings. The medium and large electrical boxes are over 9 inches deep allowing the installation of larger components. The 567 Series NEMA enclosures are furnished with a perforated metal subpanel for easy mounting of components. No drilling or layout.

The Siemens PICV Series 1/2″ to 1 1/4″ Pressure Independent Control Valves have a 2.5, 5, or 5.5mm stroke and work with the SSD Series Electronic Actuators. The 1 1/2″ to 2″ Normally Open Valves have a 15mm stroke and work with the SAY Series Electronic Actuators. SAY Actuators for 1.5″ and 2″ Normally Open Valves can also be set for Normally Closed operation (reverse acting).

The Siemens Series RDY2000 Commercial Room Thermostat is designed for light commercial HVAC systems that utilize 24 VAC control circuitry. It is compatible with forced air, hydronic, or steam systems fired by gas, oil, or electricity. The thermostat can control up to three stages of heating and three stages of cooling in a conventional system.