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ESM2 Pro Climate Sensor (BACnet)

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Regular price $699.00
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At Growlink, we're dedicated to empowering your cultivation with advanced technology, but we understand the importance of peace of mind. That's why we offer you the opportunity to try our solutions risk-free. If you're not completely satisfied within the first 30 days of your purchase, we guarantee a full refund, no questions asked.

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The Modular 4 in 1 Probe for CO₂, Humidity, Temperature and Pressure from Growlink is a highly versatile sensor that provides accurate and reliable measurements of environmental conditions. Designed for use specifically for CEA. 


4 in 1: CO₂, RH, T and p measurement
Heated versions for high humidity, condensing conditions
Dual wavelength NDIR CO₂ measuring principle
CO₂ measuring range up to 50,000 ppm
T and p compensation with on-board sensors
Replaceable sensing module
IP65 protection class
Low power consumption
Excellent long-term stability
High insensitivity to pollution
Analogue output or Modbus RTU or BACnet MS/TP
User configurable and adjustable

Works with Core & Connect Controllers


Measuring Range CO0…2000 ppm0…5000 ppm0…10000 ppm0…3 % (30000 ppm)0…5 % (50000 ppm)Accuracy CO - * mv – measured value± (50 ppm + 2 % mv*)± (50 ppm + 3 % mv*)± (100 ppm + 5 % mv*)± (1.5 % from full scale + 2 % mv*)± (1.5 % from full scale + 2 % mv*)

Measuring range Relative Humidity0…95 % RH (non condensing)Accuracy Relative Humidity at 25 °C (77 °C) and 20...80% RHtyp. ± 3 % RH

Measuring range Pressure700…1100 mbar (10.15...15.95 psi)Accuracy Pressure at 25 °Ctyp. ± 2 mbar

Measuring range Temperature-40…60 °C (-40...140 °F)Accuracy Temperature at 5…60 °C (41…140 °F)typ. ± 0.5 °C (± 0.9 °F)

OutputBACnet MS/TP

Supply12-30 VDC (voltage / RS485)


Package Content

1 x ESM2 Climate Sensor
1 x 3-way T Connector
1 x 6' Drop Cable


Growlink is committed to accessibility and flexibility, always offering a free version of our software with no mandatory subscription. This ensures every cultivator can access essential tools to optimize their operations, choosing only the services that best fit their needs.

Growlink stands behind the quality and effectiveness of our hardware and software tools designed for cannabis cultivators. That’s why we offer an unparalleled "Try It for 30 Days: Money-Back Guarantee." This guarantee allows you to integrate our solutions into your operations completely risk-free.

At Growlink, we are committed to maximizing the success and efficiency of cannabis cultivators through not only our state-of-the-art software tools but also through our unparalleled customer support. Unlike a competitor who charges upwards of $500 per hour for consultation, Growlink provides these essential services at no additional cost.

TerraLink sensors use standard SDI-12 communication, making them compatible with many data loggers and controllers, including Agrowtek, Pulse Grow, Aranet, and others. At Growlink, we believe in open compatibility and will never sell you a product that locks you into our platform exclusively.

The TerraLink sensor from Growlink matches or surpasses other popular sensors in accuracy, despite competitors' misleading claims. Rigorous testing and practical use have proven its reliability in optimizing cannabis cultivation. Growlink upholds transparency, offering technology that genuinely enhances grow operations.