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ZC and ZC.H – Transmitter with remote probe

Heavy-duty transmitters for advanced requirements. The ZC and ZC.H (high temperature) transmitters are supplied with a robust, pressure die-cast aluminium housing and a stainless steel...

BZ – Transmitter with remote probe

Heavy-duty transmitters for humidity and temperature for advanced requirements...

DZK – modular design

...humidity variables The integrated hx processor uses the values for relative humidity and temperature to calculate the dew point, enthalpy, mixing ratio, absolute humidity or...

DW – wall mounted

Humidity and temperature transmitter - highly accurate and easy to install...

LW – wall mounted

Humidity and temperature transmitter optimised for HVAC – LW, economical transmitters – L-series is primarily optimized for ambient room conditions. It is very suitable to...

DK – duct mounted

Humidity and temperature transmitter - highly accurate and easy to install...

DI – Indoor

Sensors for humidity and temperature - the integral measuring chamber is separated from the transmitter electronics, this ensures effective ventilation of the humidity and temperature...

AK combined with probes of the S series

...here) can measure relative humidity and temperature, in air and other non-aggressive gases, for operating temperatures up to 150 °C. The integrated hx processor can...

LK – duct mounted

Humidity and temperature transmitter optimised for HVAC - LK, economical transmitters - L-series is primarily optimized for ambient room conditions. It is very suitable to...

AW with remote probe

...measure relative humidity and temperature in operating temperatures up to 200 °C. Combined with the probe SZKA.HD in operating temperatures up to 160 °C and...

AW – combined with probes of the S series

Industry Transmitters for humidity and temperature, AW (wall mounted), can be combined with any probe of the S series. The AW-transmitter combined with the probe...

eStat20 – electronic hygrostat with remote sensor

Combined device – sensor and hygrostat in one Hygrostat with two individually configurable relays (humidity) and two additional analogue outputs (for humidity and temperature) are...

(T)FG120 – Indoor Humidity Temperature Sensor

POLYGA® transmitters demonstrate excellent measuring properties and accuracy in high humidity conditions....

Protective filter Ø 15 mm

...speed and clean atmosphere. - Operating temperature range: -80...200°C - IP10 - Response time humidity: 20s. ZE13 - Coarse-pored sintered filter made of high-grade steel...

S series SVKA probes

Industry Transmitters for humidity and temperature, the A-series probe and transmitter are interchangeable and can be combined in any combination; they can be used at...

Indoor humidistat HG120

...rooms for fruit and vegetables, greenhouses for gardening use, the textile industry, the paper and printing industry, the film industry and hospitals. Remarkably straightforward and...

(T)FG80 – Humidity Temperature Sensor

POLYGA® transmitters demonstrate excellent measuring properties and accuracy in high humidity conditions....

HG80 Duct humidistat

...and dehumidifying in offices and computer rooms. Other areas of use are storage of foodstuffs and luxury foods, cooling rooms for fruit and vegetables, greenhouses...

LI – indoor

Humidity and temperature transmitter for HVAC, LI-roomversion of the economical transmitter series is primarily optimised for ambient room conditions and are very suitable for helping...

eStat20 DUO – electronic hygro-thermostat with remote sensor

...for many applications: HVAC and building automation, cooling and climate technology, storage and transport, apparatus and plant engineering, production and process automation, agricultural and food...

eStat10 – electronic hygrostat

...and temperature) are suitable for many applications: HVAC and building automation, cooling and climate technology, storage and transport, apparatus and plant engineering, production and process...

eStat10 DUO – electronic hygro-thermostat

...for many applications: HVAC and building automation, cooling and climate technology, storage and transport, apparatus and plant engineering, production and process automation, agricultural and food...

(T)FK80J – duct version

FK80J Humidity Sensors TFK80J Humidity-Temperature Sensors The sensors of the FK Series are very robust humidity and temperature sensors, providing highly accurate measurements across the...

Indoor humidistat Hygroswitch

...and printing industry, the film industry and hospitals. Remarkably straightforward and durable design Our Humidistats feature a simple and robust design. The Polyga® measuring element...

ATEX KC.Ex – duct mounted

Humidity and temperature sensor with ATEX certificate...

(T)FK120J – Indoor

FK120J Humidity Sensor TFK120J Humidity-Temperature Sensor Transmitters for semi-industrial and industrial applications. These humidity and temperature sensors are very robust, providing highly accurate measurements across...

S series SZKA probes with cable

Humidity and temperature probes to be combined with transmitterhead AW or AK...

ATEX GC.Ex – wall mounted

ATEX-certified high-precision transmitter, tailor-made explosion-proof technology with ATEX certification for use in potentially explosive atmospheres and areas with combustible dust; equipment in categories 1/2G and...

PC and PC.S probe

Robust analogue probe for humidity and temperature...

Indoor humidistat HGMini

...power supply. Waterresistent and maintenance-free It has unparalleled long-term stability and is 100 % waterproof, which makes it ideal for use in high humidity. In...

Condensation controller FAS

...caused by excessive moisture or air humidity. They are mounted on cooling water pipes or on cooled surfaces and monitor if the temperature drops below...

Protective filter Ø 20 mm

...suitable for low air speed and clean, non-aggressive atmosphere. E.g. in a laboratory and indoor applications. Operating temperature range: -40...85°C, IP20. ZE17 -Same as type...

Condensation controller FAS 250VAC

...caused by excessive moisture or air humidity. They are mounted on cooling water pipes or on cooled surfaces and monitor if the temperature drops below...

PM15P – digital probe

All transmitters of the Plug‘n‘ Measure Series work with an internal hx processor which uses the measured values for relative humidity and temperature to also...

HSF Humidity sensor

...relative humidity to – influence cooling power – switch cooling systems on or off – signal the point at which the temperature drops below the...

BK – duct mounted

...bar. In the B series, the probe and transmitter are firmly connected to one another. The integrated hx processor can calculate further humidity values and...

PC-ME and PC.S-ME outdoor version

Robust probes - outdoor meteorology applications: PC-ME with cable connection PC.S-ME with plug-in connection and coupling The robust construction and the option of equipping the...

IAK – Probes with plug-in connection

Humidity and temperature probe with analogue or digital output...

IRK – Probes with robust head

Analogue probes with robust head - I series Transmitters of the I series are robust, compact probe sensors to measure relative humidity and temperature with...

Humidity standards

The ZE 31/1-series humidity standards are used as a simple and reliable way of checking Mela® humidity sensors on-site or in the laboratory. A reproducible...

MCK – miniature sensor

...relative humidity and temperature in air and other non-aggressive gases. The sensors are available with a 4-pin plug or with a cable. A good dynamic...

LP – probe

Humidity and temperature transmitter optimised for HVAC...

RC – Probe with robust head and RC-ME meteorology

...protective filters and a variety of special equipment, make these sensors stand out as versatile all-rounders. Extreme outdoor conditions For extreme outdoor conditions (near the...

HM120 Hygro Modul

The hygro module HM120 is a humidity-dependent switch that can be fitted in equipment such as hygrostats, humidifiers, dehumidifiers, ventilating fans, driers and many more....

ITK – Stainless steel probes (modbus)

Stainless steel probes with digital output and robust head of the I series are compact probe sensors to measure relative humidity and temperature with high...

Probe with cable

...125°C) The high temperature version is equipped with an IP65 PTFE filter and a high temperature cable. They can operate in temperatures from -40 °C...

GC-ME wall mounted – meteorology version

...steel sinter filter. It measures relative humidity and temperature, in air and other non-aggressive gases in temperatures up to 80 °C. Capacitive MELA® sensorchips Equipped...

IVK – Stainless steel probes with plug-in connection (modbus)

Transmitters in the I series are robust, compact probe sensors to measure relative humidity and temperature with high precision. They can be used for a...

PL – probe

Humidity and temperature sensors - PL have been specially adapted to the needs of the ventilation and air-conditioning sector. The PL series are equipped with...

WL – indoor

Humidity and temperature sensors indoor of the "Light series" have been specially adapted to the needs of the ventilation and air-conditioning sector. Capacitive MELA® sensorchips...

KC – duct mounted

Heavy-duty transmitters to measure humidity and temperature with advanced requirements. The KC transmitters are supplied with a robust, pressure die-cast aluminium housing and a stainless...

DUO1060

...humidity and the temperature. Typical areas of use are climatic cabinets and the control of air humidifiers and dehumidifiers in office facilities and computer rooms....

BW – wall mounted

Our Heavy-duty transmitter wall mounted BW can be used at temperatures between -40 °C and 85 °C. The integrated hx processor can calculate further humidity...

HM80 Hygro OEM Module

The hygro module HM80 is a humidity-dependent switch that can be fitted in equipment such as hygrostats, humidifiers, dehumidifiers, ventilating fans, driers and many more....

VR, VR.D – Compact sensor with robust head

...humidity and temperature in air and other non-aggressive gases. Capacitive MELA® sensorchips Equipped with the highly dynamic capacitive MELA® sensor element, the sensor provides reliable...

ZC.D, ZC.HD – with remote probe, pressure-resistant up to 25 bar

Heavy-duty transmitters to measure humidity and temperature with advanced requirements. The ZC.D and ZC.DH (high temperature) transmitters are supplied with a robust, pressure die-cast aluminium...

Protective filter Ø 20 mm for outdoor applications

Filters and protective baskets outdoor applications: ZE16+ - PTFE filter and protective basket ZE16, open, conductive metallized finish, Suitable for low air speed and clean,...

Pluggable probe

...housing and the probe. It has a protection level of IP65 when plugged in and can operate in temperatures from -40 °C to 80 °C....

KL – duct mounted

Humidity and temperature sensors optimised for HVAC...

VC – Compact rod sensor

Operating temperature up to 80°C Humidity accuracy: ±2% RH (5...95 %RH at 10...40 °C) Temperature accuracy: ± 0.2 K with voltage output Temperature accuracy: -0.2...+0.6...

(T)FM80 OEM – duct version

Humidity temperature sensor - duct version typs: FM80 – Humidity module TFM80 – Humidity-Temperature-Module TFM80 Module for integration in a wide range of customer-specific standard...

Condensation controller – FGO / FGS

Dew-point control sensors are mounted on cooling water pipes or on cooled surfaces and are used to monitor if the temperature drops below the dew-point....

VC/11 Compact sensor (ammonia-resistant)

Humidity and temperature sensor with stainless steel tube, resistant to ammonia...

Protective filter Ø 12 mm

Protective filter Ø 12mm protect the sensor from mechanical damage and adapt it to the different locations of use. Filters and protective cages are designed...

GC – wall mounted

...to measure relative humidity and temperature, in air and other non-aggressive gases. These sensors are ideally suited to industrial applications, e.g. drying processes. Capacitive MELA®...

Weather guard

Weather guard outdoor applications use of your measuring tasks, despite the weather-related ambient conditions, you can achieve reliable results for temperature and humidity. The specially...

Digital combi-controller EDJ3

Digital combi-controller for humidity and temperature...

Filter for Polyga duct mounted version

...version, PTFE, two-part, for sensor types HG80 and FG80 recommended for extreme operating conditions. Recommended for air speeds between 8 and 15 m/s Articlenr: 20.014....

eStat20 – Sensor und Hygrostat in einem!

...und einen Drehknopf ohne Öffnen des Gehäuses eingestellt werden. Als Transmitter bietet der eSta20 kontinuierliche Spannungsausgangssignale für relative Feuchte und Temperatur. Keine Unterbrechung des Messvorganges...

Precision humidity and temperature control for your greenhouses

Installation aids Ø 20 mm

...to 80 °C ZA24/28 Mounting plate, suitable for mounting sensors Ø 20 mm in ventilation ducts up to 200 °C (stainless steel and brass, nickel-plated)...

Installation aids Ø 15 mm

ZA24 Mounting plate, stainless steel and brass, nickel-plated, suitable for mounting sensors Ø 15 mm in ventilation ducts up to 200 °C ZA25 Mounting plate,...

Job offers

...technology while enjoying secure, long-term employment in a stable and supportive environment. Bring your skills, ideas, and dedication — and let’s talk about how we...

Relative Humidity

History of humidity measurement

Humidity measurement technology

Pressure-tight fitting

ZA28 Pressure-tight feed-through fitting, pressure-tight up to 10 bar, for temperatures up to 150 °C. Thread G 3/4" with locking ring, Material: Stainless steel 1.4571...

We send, collect and support with our stamps

We are impressed by the valuable work that Bethel does and would like to do our bit to support the mission. We want to inspire those in need to make a difference and bring joy with our donations.

Quick and easy probe replacement without interrupting the measurement process

Some models in the DZK series are temperature-resistant up to 125 °C and all models have an IP rating of IP 65. The creation of this series represents a further step towards universal applicability.

Downloads

This page has programs and files available to download. Please note the specified system requirements.