Replacement Temp / Humidity / Light Sensor for Hydro-X

Restore Accurate Sensing with a Drop-In Replacement Sensor

This TrolMaster MBS-TH sensor is a replacement part for the 3-in-1 temperature, humidity, and light sensor that ships standard with Hydro-X controllers, useful if your original sensor is damaged or you want a spare on hand.

A built-in photocell automatically distinguishes day from night conditions, and the sensor connects to your controller using the included RJ12 cable and T-splitter.

Key Features & Benefits

• 3-in-1 Sensing — Measures temperature, humidity, and light from one sensor body.
• Built-In Photocell — Automatically detects day and night conditions.
• RJ12 Cable and T-Splitter Included — Ready to connect to your Hydro-X controller out of the box.
• Drop-In Replacement — Matches the sensor that ships standard with Hydro-X controllers.

Who Should Use This Replacement Sensor

Growers whose original Hydro-X sensor has failed, or who want a spare sensor ready for a second controller, should pick up this MBS-TH replacement.

A Spare Part, Not a New Feature

This is a replacement sensor only — every Hydro-X controller already ships with one included. Order this part if your existing sensor needs to be replaced or you're setting up an additional controller.

Frequently Asked Questions

Do I need this if I already have a Hydro-X controller?

Only if your included sensor needs replacing or you're adding a second controller; one sensor ships standard with every Hydro-X controller.

What does the photocell do?

It automatically detects day versus night conditions for the controller's lighting schedule logic.

What's included with the sensor?

An RJ12 connection cable and a T-splitter, ready to install on your controller.

Does this sensor measure CO2?

No. This is a 3-in-1 sensor for temperature, humidity, and light only.