ESM2 Pro Climate Sensor (BACnet)

4-in-1 Climate Sensor. Professional CEA Monitoring.

The ESM2 Pro measures CO₂, humidity, temperature, and air pressure in a single modular sensor – developed specifically for use in controlled environment agriculture (CEA). With an interchangeable measuring module and excellent long-term stability.

Features

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

Specifications

Measuring Range CO₂
0…2000 ppm
0…5000 ppm
0…10000 ppm
0…3 % (30000 ppm)
0…5 % (50000 ppm)
Accuracy CO₂ - * 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 Humidity
0…95 % RH (non condensing)
Accuracy Relative Humidity at 25 °C (77 °C) and 20...80% RH
typ. ± 3 % RH

Measuring range Pressure
700…1100 mbar (10.15...15.95 psi)
Accuracy Pressure at 25 °C
typ. ± 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)

Output
BACnet MS/TP

Supply
12-30 VDC (voltage / RS485)

Package content

1 x ESM2 Climate Sensor
1 x 3-way T Connector
1 x 5M (16.4 foot) Cable
1 x EOL Resistor