Senzomatic HT

Name: Senzomatic HT
Brand: MoistureGuard
SKU: 4104cbaa-5950-45d3-b552-af9e66e61135

MoistureGuard

Monitors ambient humidity and temperature in building structures and outdoor environments.

Overview

The MoistureGuard HT template reads ambient temperature, relative humidity, dew point, and absolute humidity from a combined sensor via Modbus RTU. It supports models HT, HT-R, HT02, and HT03, which are typically installed in building cavities, insulation layers, roofs, and indoor or outdoor environments.

Key readings

Temperature
Relative humidity
Dew point temperature
Absolute humidity
Power supply voltage
Sensor serial number

Use cases

Monitor relative humidity and temperature inside building cavities remotely from the ModbusCloud dashboard.
Create an alert when dew point temperature approaches surface temperature to warn of condensation risk.
Track long-term humidity trends in flat roof assemblies to detect moisture ingress before damage occurs.
Set up threshold notifications when relative humidity exceeds a critical value inside insulation layers.
Verify sensor health remotely by monitoring power supply voltage readings across all installed HT sensors.

Installation

1Connect the MoistureGuard HT sensor data wires (A and B) to the RS-485 terminal of your Modbus gateway (MCG or MLP series) and supply the sensor with 12V DC.
2Set the Modbus RTU baud rate to 19200 with odd parity on the gateway port connected to the sensor bus.
3Assign a unique Modbus slave address to each sensor on the bus, ensuring no address conflicts with other devices.
4Test each sensor before installation using the MoistureGuard USB converter and the proprietary sensor tester application to confirm communication.
5Import the MoistureGuard HT template in the ModbusCloud platform and map it to the correct gateway port and slave address.
6Verify that temperature, humidity, dew point, and supply voltage readings appear correctly on the ModbusCloud dashboard.

Things to watch for

Registers (6)

6 read / 0 write

Name	Address	Function	Type	Unit	Access
Temperature	100	FC04	float32	°C	R
Relative humidity	102	FC04	float32	%	R
Teplota rosného bodu	104	FC04	float32	°C	R
Absolute humidity	112	FC04	float32	g/m³	R
Power supply voltage	116	FC04	float32	V	R
Sensor serial number	3001	FC04	uint16		R