RTD Meter/Transmitter/Controller -- Q2000M/Q2000R
from Newport Electronics, Inc.

QUANTA Models Q2000M and Q2000R are low-cost, 3 1/2 digit indicator/controllers for 100 ohm platinum RTD's with alpha of 0.00385. They are complete with sensor excitation and break detection. Resolution can be 1 ° (Q2000M) or 0.1 ° (Q2000R). Readout can be in °C or °F, as selected by... [See More]

  • Control Signal: Analog Voltage Output (optional feature); Current Loop Output (optional feature); Switched Output (optional feature); Other; Parallel BCD
  • Control: Limit; Linear
  • Controller Type: HVAC
  • Features: Multi-Function; Is a Chart Recorder; Rate Indication/ Control
1/4 DIN Digital Controllers -- 4000A Series
from OMEGA Engineering, Inc.

The OMEGA ® 4000A Series digital controller distinguishes itself by features, construction, and operation one would expect to find only in controllers costing much, much more. Bright, easy-to-read LED digits yield an unambiguous temperature indication which is not achievable with an analog... [See More]

  • Control Signal: Analog Voltage Output (optional feature); Current Loop Output (optional feature); Switched Output (optional feature); Other (optional feature); Triac
  • Control: Limit (optional feature); PID (optional feature)
  • Controller Type: HVAC
  • Features: Rate Indication/ Control
Electronic Controller -- 2430
from Sierra Monitor Corporation

The primary task of the Telecom Site Management Products is the efficient monitoring and management of critical site support elements, including commercial power, HVAC, generators, DC plant and batteries, and environmental sensors. Depending upon the type and size of the structure, equipment housed... [See More]

  • Control Signal: Analog Voltage Output; Current Loop Output; Switched Output
  • Control: Limit
  • Controller Type: HVAC
  • Features: Multi-Function
Setpoint Controller -- PXZ4
from Instrumart

The Model PXZ4 Set Point Controller is one of the most technically advanced instruments in the industrial and commercial markets today. It is also one of the least expensive controllers of its kind. Through the use of a specially designed Fuji microprocessor, the Model PXZ4 incorporates the latest... [See More]

  • Control Signal: Current Loop Output
  • Control: Limit; PID; Fuzzy Logic
  • Controller Type: HVAC
  • Features: Multi-Function; Rate Indication/ Control
Air Measuring Station -- IAQ50X
from Ruskin Company

The IAQ50X is an air measuring station with an ultra low-leak, high performance control damper that is integral to the flow sensing section. This patented design provides a solution that measures and controls flow in an 11" (279) deep assembly. The assembly exceeds AMCA class 1A leakage... [See More]

  • Control Signal: Current Loop Output
  • Control: Limit
  • Controller Type: HVAC
  • Form Factor: Chassis