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SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor Click here to enlarge
SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor

SM-500: Full-Spectrum Guardian CEA Multi-Sensor Monitor

$997.00

The Apogee Guardian is an elegant device that provides accurate measurements of important indoor environmental parameters. The SM-500 is a user-friendly datalogger with multiple integrated sensors to measure PAR, air temperature, humidity, vapor pressure deficit and dewpoint, CO2 concentration, barometric pressure, and daily light integral* and photoperiod* (*only accessible via Bluetooth). Graphical summaries of these measurements can be downloaded to dataloggers via Modbus or smartphones via Bluetooth with the Apogee Connect app (iOS/Android). While the SM-500 can take measurements as a stand-alone device mounted to a mast (AM-270, coming soon) or hung by thin wires, it can also integrate into systems for greenhouses, grow rooms, and vertical farms via Modbus or Bluetooth.

The SM-500 is constructed from high-quality ASA plastic with low thermal conductivity and a gloss white finish in selective areas to lower emissivity. The Guardian is filled with foam to provide additional thermal insulation. The internal airway utilizes a small venturi constriction to maximize airflow efficiency over the thermistor, which minimizes the thermal boundary layer’s influence on temperature measurements. Simultaneously, a separate module used to measure CO2, humidity, and pressure is aspirated by a passive, low velocity airstream using a “fluid entrainment” principle. Additionally, a quantum sensor is mounted on the top of the shield to measure PAR.

The Guardian comes in two model versions: the SM-500 and SM-600. The SM-500 and SM-600 models are identical in all ways (size, function, and appearance) except for the embedded light sensor. The SM-600 sensor measures extended photosynthetically active radiation (ePAR), while the SM-500 measures PAR (400-700 nm). For the ePAR option, please see our SM-600 model.

Depending on the selected package, there are different cable types and lengths available:

  • L-5: Includes a 5-meter pigtail cable
  • L-10: Includes a 10-meter pigtail cable (+$25)
  • L-20: Includes a 20-meter pigtail cable (+$50)
  • AC: Includes a 5-meter USB power-only cable and AC adapter

 

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

 

MORE INFORMATION ON APOGEE GUARDIAN CEA MULTI-SENSOR MONITORS >> click here

Full Description
Where to Buy

The Apogee Guardian is an elegant device that provides accurate measurements of important indoor environmental parameters. The SM-500 is a user-friendly datalogger with multiple integrated sensors to measure PAR, air temperature, humidity, vapor pressure deficit and dewpoint, CO2 concentration, barometric pressure, and daily light integral* and photoperiod* (*only accessible via Bluetooth). Graphical summaries of these measurements can be downloaded to dataloggers via Modbus or smartphones via Bluetooth with the Apogee Connect app (iOS/Android). While the SM-500 can take measurements as a stand-alone device mounted to a mast (AM-270, coming soon) or hung by thin wires, it can also integrate into systems for greenhouses, grow rooms, and vertical farms via Modbus or Bluetooth.

The SM-500 is constructed from high-quality ASA plastic with low thermal conductivity and a gloss white finish in selective areas to lower emissivity. The Guardian is filled with foam to provide additional thermal insulation. The internal airway utilizes a small venturi constriction to maximize airflow efficiency over the thermistor, which minimizes the thermal boundary layer’s influence on temperature measurements. Simultaneously, a separate module used to measure CO2, humidity, and pressure is aspirated by a passive, low velocity airstream using a “fluid entrainment” principle. Additionally, a quantum sensor is mounted on the top of the shield to measure PAR.

The Guardian comes in two model versions: the SM-500 and SM-600. The SM-500 and SM-600 models are identical in all ways (size, function, and appearance) except for the embedded light sensor. The SM-600 sensor measures extended photosynthetically active radiation (ePAR), while the SM-500 measures PAR (400-700 nm). For the ePAR option, please see our SM-600 model.

Depending on the selected package, there are different cable types and lengths available:

  • L-5: Includes a 5-meter pigtail cable
  • L-10: Includes a 10-meter pigtail cable (+$25)
  • L-20: Includes a 20-meter pigtail cable (+$50)
  • AC: Includes a 5-meter USB power-only cable and AC adapter

 

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

 

MORE INFORMATION ON APOGEE GUARDIAN CEA MULTI-SENSOR MONITORS >> click here

Current Stock:
Calibration Uncertainty ± 5 % Long-term drift (non-stability) Less than 2 % per year Measurement Repeatability Less than 0.5 % Measurement Range 0 to 4000 µmol m-2 s-1 Spectral Range 389 to 692 nm Field of View 180° Directional Response ± 5 % at 75° zenith angles Azimuth Angle Less than 0.5 % Tilt Error Less than 0.5 % Non-linearity Less than 1 % (up to 4000 µmol m-2 s-1) Response Time Less than 1 ms Temperature Response -0.11 % ± 0.04 % per C Uncertainty in Daily Total Less than 5 % Operating Environment -40 to 60 C with 0 to 95 % relative humidity Housing White ASA housing CO2 Range 0-2000; ± 50 ppm + 2 % Temperature ± 0.2 C Humidity Range 0-95 %; ± 3 % 20-80 % Vapor Pressure Deficit (25 C) ± 0.08 kPa Barometric Pressure 70 to 110 kPa Connectivity Modbus (RS232 and RS485) and Bluetooth Power Requirements 5-32 V DC; Typical: 100 mA; Peak: 500 mA Data Storage Capacity 9 months of 1 min data IP Rating IP53 rating for harsh environments Dimensions 105 mm diameter, 157 mm height Mass 392 g Cable 6 conductor, shielded wire with TPR jacket and M8 connector (available in 5, 10, and 20 m lengths; 5 V 1A USB power adapter and 5 m USB to M8 connector cable) Warranty 4 years against defects in materials and workmanship Manufactured Assembled in the USA

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