Negative pressure sensor – Precise control for a stable grow room climate

The negative pressure sensor is the ideal addition to digital climate controllers and ensures reliable control of the negative pressure in your grow tent or grow room. It continuously measures the current negative pressure at the end of the connected pressure measurement hose and transmits the values to the controller in real time.

Based on this measurement data, the climate controller automatically regulates the speed of the supply air fan so that the desired negative pressure is maintained at a constant level. This reliably prevents odours from escaping and supports a stable, controlled room climate – particularly important for indoor grows with exhaust air and filter systems.

The sensor is connected to the controller via a 5 m RJ45 cable. Depending on the installation situation, the supplied hose can be flexibly routed via the marked ‘Inside’ and ‘Outside’ connections in order to measure the negative pressure exactly in the desired area.

Advantages at a glance

• Precise measurement of negative pressure in the grow room
• Automatic control of the supply air via the climate controller
• Reliably prevents odours from escaping
• Easy installation via RJ45 connection
• Flexible use thanks to labelled hose connections
• Ideal for grow tents & indoor grow rooms

Installation & application

• Connection to the climate controller via RJ45 cable (5 m)
• Hose connection ‘Inside’: Measurement in the grow room/tent
• Hose connection ‘Outside’: Reference measurement outside
• Suitable for various installation situations (sensor inside or outside)

Technical data

• Dimensions (L × W × H, without cable): 110 × 36 × 20 mm
• Cable length: approx. 5 m
• Measuring interval: 1 second
• Measuring range: ±200 Pa
• Protection class: IP40
• Permissible operating temperature: 0–40 °C

Scope of delivery

• Negative pressure sensor with 5 m cable (RJ45)
• 4 m hose for pressure measurement
• Wall mounting (Velcro)
• Operating instructions