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Modbus RS485 Humidity and Temperature Probe

Relative Humidity, Temperature,
and Barometric Pressure Probe SDI-12
Interface

Modbus RS485 Humidity and Temperature Probe

This Relative Humidity and Temperature Probe offers precise measurements for environmental monitoring, supplying reliable data suitable for industrial, environmental, HVAC, and agricultural applications.

99.00 € 99.0 EUR 99.00 € VAT Excluded 165.00 €

99.00 € VAT Excluded 165.00 €

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probes M12 humidity temperature barometric pressure sdi-12 sale

Internal Reference: SN-ERHT-30

Highlights

Stainless steel enclosure and filter cap engineered to shield sensing elements in harsh environments
Waterproof protection, and internal electronics sealed in resin, coated electrical parts
Multiple electrical interfacing options - SDI-12 (v.1.4), RS-485 (Modbus), UART (Modbus), USB
Low-power consumption suitable for battery-powered applications. On-board heater included
Extensive command sets for operational options and probe diagnostics
UV-protected and oil-resistant flexible cable (optional)

Description

RHT is a multi-parameter, high-accuracy digital probe. It measures 2 primary environmental parameters and calculates 11 additional parameters. Due to its low power consumption, versatile electrical interfacing options, and wide-range power supply, the probe is compatible with a variety of battery operated dataloggers and industrial data acquisition systems. A stainless-steel enclosure in combination with weatherproof electronic circuitries, and durable cable, ensure proper long-term operation even in harsh outdoor and demanding industrial conditions. All primary parameters are sensed by physical sensors. The secondary parameters are calculated, based on values measured by the probe's physical sensors. For optimal results in outdoor applications it is recommended to install an RHTP probe in a solar shield.

Primary Parameters

Relative humidity
Air temperature

Secondary Parameters

Dew point
Absolute humidity

Atmospheric pressure at sea level
Specific enthalpy

Heat index

Specifications

Product information

The Evvos RHT stands out as a robust and resilient, high-precision digital probe, proficient in measuring various environmental parameters. Thanks to its low power consumption, versatile electrical interface options, and wide power supply range, this probe seamlessly integrates with an array of battery-operated data loggers and industrial data acquisition systems. Crafted with a stainless-steel enclosure, weather-resistant electronic circuitry, and an optional durable cable, it ensures sustained performance, even when exposed to challenging outdoor and industrial environments. All primary parameters are directly sensed by physical sensors, while secondary parameters are derived from measurements acquired by the probe’s physical sensors.

Typical Applicaitons

Environmental monitoring
Weather forecasting solutions
Industrial data acquisition
Precision agriculture/farming
Cold chain and HVAC applications

Internet of Things (IoT)

Electrical interfacing options

SDI-12 (v.1.4, user-selectable 3V/5V logic levels)
Modbus/RS485

NMEA 083 over RS422

Mechanical data

Weight: 0.151 kg
Dimensions: 18 x 155 mm
Cable: A 1.5 m. (5,9ft), 5-position (SDI-12) or 4-position (Modbus/RS-485, or NMEA-0183), PUR halogen-free, black-gray RAL 7021, free cable end, on socket straight or angled M-12, A-coded sensor cable. Custom cable length on request.

Connector

Type: Socket straight M12
Number of positions: 4
Coding type: A

Cable/line (optional)

Cable length: 1.5 m

Cable weight: 30 kg/km
UL AWM Style: 20549 / 10493 (80°C/300 V)
Cable type: PUR halogen-free black [PUR]
Conductor structure signal line: 42x 0.10 mm
AWG signal line: 22
Conductor cross section: 4x 0.34 mm² (Signal line)
Wire diameter incl. insulation: 1.27 mm ±0.02 mm
External cable diameter: 4.20 mm ±0.15 mm
Outer sheath, material: PUR
External sheath, color: black-gray RAL 7021
Conductor material: Bare Cu litz wires
Material wire insulation: PP
Single wire, color: brown, white, blue, black
Thickness, insulation: ≥ 0.21 mm
Thickness, outer sheath: approx. 0.50 mm
Overall twist: 4 wires, twisted
Max. conductor resistance: ≤ 58 Ω/km
Insulation resistance: ≥ 1 GΩ*km
Nominal voltage, cable: ≤ 300 V
Test voltage: ≥ 3000 V
Minimum bending radius, fixed installation: 5 x D
Minimum bending radius, flexible installation: 10 x D
Smallest bending radius, fixed installation: 21 mm
Smallest bending radius, movable installation: 42 mm
Dynamic load capacity (bending): Max. bending cycles: 10000000, Bending radius: 10 x D, Traversing path: 10 m, Traversing rate: 3 m/s, Acceleration: 10 m/s²
Halogen-free: in accordance with DIN VDE 0472 part 815, in accordance with DIN EN 50267-2-1
Flame resistance: in accordance with UL 758/1581 FT2, DIN EN 60332-2-2 (20 s)
Resistance to oil: in accordance with DIN EN 60811-2-1
Other resistance: Highly resistant to acids, alkaline solutions and solvents, hydrolysis and microbe resistant, partly UV-resistant (in accordance with DIN EN ISO 4892-2-A), Low adhesion, abrasion-resistant
Special properties: Flexible cable conduit capable, Silicone-free, Free of substances which would hinder coating with paint or varnish flexible
Ambient temperature (operation): -40 °C ... 80 °C (cable, fixed installation), -25 °C ... 80 °C (Cable, flexible installation)

Manufacturer declarations

Datasheet: