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Turning any asset
into a SMART asset

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Crest Sensors can turn any asset into a SMART asset in a cost-efficient way. In the past 7 years, the company has developed a range of remote telemetry units (RTU), together with various utility companies, that use the latest technology in the field of telecommunications, sensors, security and energy consumption. As a result, Crest Sensors battery-powered or mains-powered devices can collect data from any asset for years without maintenance of the monitoring solution. Crest Sensors is a Dutch company, located in Sliedrecht. It is an electronics development company with a passion for the perfect solution. Thanks to the in-house development of products, each product can be customized and adapted to the requirements and wishes of the customer. The entire production of all products takes place in the Netherlands in Sliedrecht. This limits the entire production chain and thus ruducing costs / increasing quality that can be expected from a product that has to function for years under the most severe circumstances.

Please take a look around and let us know if we can help you with anything!

Our Products

Our Products
IoT Power Quality Meter
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Power Quality Meter (LTE-M)

Climate sensor (NB-IoT)

RTU (LTE-M / NB-IoT)

RTU (NB-IoT)

RTU (LTE-M)

Download our full RTU brochure!

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Use Cases

Use Cases

Our Customers

Our customers

Our Solutions

Our Solutions

PQM001: Power Quality Meter

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The LTE-M power quality meter is a device developed for monitoring of low voltage grids and transformers. The device has been developed with an eye on modularity and low- cost so that it can be used for any application,
at any location and it is cost-effectively scalable. Via the Modbus protocol extensions can be coupled to the main module to measure additional low voltage fields, transformer temperatures, ambient temperatures, door contacts, short-circuit protection relays, public lighting and much more. In addition, existing
Modbus equipment can also be connected. These capabilities make this device suitable for mobile measurement solution to complete distribution automation.

  • Voltages / currents / harmonics / powers / power factors / frequenties / THDs / IO's

  • Low voltage substation monitoring

  • Distribution automatisation

  • 4G LTE-M cellular connectivity

  • Modular through Modbus

  • Measure up to 11 three phase feeders

  • Connect up to 20 IO modules

  • Secure data (end-to-end encryption)

  • Firmware updates over the air (FOTA)

  • Onboard memory

  • Configurable measure / send interval 

  • Permanent or mobile use

  • Fast installation

  • Plug & Play

  • Low-cost

  • IP50 (IP67 on request)

RTU001: Indoor Climate sensor

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RTU001 is a battery powered RTU (Remote Telemetry Unit) intended for measuring the indoor climate in buildings. The very compact form factor as well as the possibility for wall mounting makes it suitable for different types of spaces. It can be equipped with a sensor for air temperature, humidity, atmospheric pressure, CO2 and a tilt sensor for fall detection (gyroscope). In addition, there is the option of connecting a door sensor for monitoring presence of personel. Temperature and humidity have a direct impact on the lifetime of many different types of equipment, including switchgear, batteries, computers and telecom systems. Companies use the indoor climate sensor to monitor the indoor climate of rooms with this kind of equipment.

  • Temperature / Relative humidity / Barometer* / CO2* / Gyroscope / Door contact* / External temperature sensor*

  • Fall detection (movement in xyz axis)

  • 4G NB-IoT cellular connectivity

  • Battery powered

  • Send button

  • Secure data (end-to-end encryption)

  • Firmware updates over the air (FOTA)

  • Onboard memory

  • Configurable alarm values 

  • Configurable send interval 

  • Internal antenna

  • Easy mounting 

  • Plug & Play

  • Low-cost

  • IP20

     * Optional