サカキコーポレーション Product Lineup

This is a wireless data logger for IoT (Internet of Things) applications that uses LoRaWAN technology for long-distance data transmission. LoRaWAN is a network standard that utilizes unlicensed frequency bands within the ISM band (AS923 in Japan) and enables long-distance communication over several kilometers in well-maintained environments. It is characterized by extremely low power consumption, allowing for long battery life. The LR35 series offers a total of 22 models that can measure temperature, humidity, differential pressure, CO₂, PM, solar radiation, and rainfall.

The "LR351NTC" is an indoor temperature and humidity data logger. The operating frequency is AS923 (Asia including Japan) (EU868, US915, AU915), with an internal antenna and an RF power of +14dBm (AS923). *Dependent on antenna gain. The activation methods are OTAA (Over-The-Air Activation) and ABP (Activation-by-Personalization). The alarm is a buzzer sound from the built-in buzzer, and a visible alarm can also be produced as an option. 【Features】 ■ Side Mini-USB port ■ M12 connector for connecting the temperature and humidity composite probe HP3517TC (temperature sensor NTC10KΩ) ■ Temperature measurement range: -40 to +105℃ ■ Humidity measurement range: 0 to 100% RH ■ Humidity sensor operating temperature: -20 to +80℃ *For more details, please download the PDF or feel free to contact us.

The "LR3514bNTV" is an indoor temperature, humidity, and pressure data logger. It features a fixed downward temperature and humidity composite probe (temperature sensor NTC10KΩ) and has a built-in pressure sensor. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support HD35.03. 【Features】 ■ Temperature measurement range: -40 to +105℃ ■ Humidity measurement range: 0 to 100% RH ■ Pressure measurement range: 300 to 1100 hPa ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 85% RH ■ Calculated elements: dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, water vapor partial pressure ■ Memory capacity: Min 22,000 / Max 60,000 data points *For more details, please download the PDF or feel free to contact us.

The "LR351NTV" is a temperature and humidity data logger for measuring ambient temperature and humidity, equipped with a fixed lower temperature and humidity combined probe (temperature sensor NTC10KΩ). It comes with a 3.6V lithium thionyl chloride battery (non-rechargeable) and a wall-mount support HD35.03. *Custom LCD (code L) is optional. The calculated elements include dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, and water vapor partial pressure. Please feel free to consult us when needed. 【Features】 ■ Temperature measurement range: -40 to +105℃ ■ Humidity measurement range: 0 to 100% RH ■ Humidity sensor operating temperature: -20 to +80℃ ■ Logger operating temperature and humidity: -20 to +70℃/0 to 85% RH ■ Calculated elements: dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, water vapor partial pressure ■ Memory capacity: Min 24,000/Max 60,000 data *For more details, please download the PDF or feel free to contact us.

We would like to introduce our indoor differential pressure data logger, the 'LR354r1Z'. It features a side Mini-USB port, is suitable for clean rooms, and offers automatic zero-point differential pressure calibration. It comes with three 3.6V AA alkaline batteries and a wall-mount support (HD35.03). Please feel free to consult us when you need assistance. 【Features】 ■ Differential pressure measurement range: ±100Pa, resolution 0.01Pa ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 85% RH ■ Memory capacity: 68,000 data points ■ Built-in pressure sensor ■ Pressure input port for φ5mm tube ■ Suitable for clean rooms, with automatic zero-point differential pressure calibration *For more details, please download the PDF or feel free to contact us.

We would like to introduce our indoor 1ch/2ch/3ch temperature input data logger 'LR357P/□TC'. It features a side Mini-USB port and an M12 connector for connecting Pt100/Pt1000 temperature probes. The measurement range is -200 to +650℃, and the logger's operating temperature and humidity range is -20 to +70℃ / 0 to 85% RH. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support HD35.03. 【Features】 ■ Side Mini-USB port ■ M12 connector for connecting Pt100/Pt1000 temperature probes ■ Measurement range: -200 to +650℃ ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 85% RH ■ Graphic LCD (code G) is optional ■ Temperature probe (TP35.1□□) sold separately *For more details, please download the PDF or feel free to contact us.

We would like to introduce our indoor temperature data logger 'LR35NTV'. It features a side Mini-USB port and a fixed downward temperature and humidity composite probe (temperature sensor NTC10KΩ). The measurement range is -40 to +105°C, and the logger operating temperature and humidity range is -20 to +70°C / 0 to 85% RH. The memory capacity is 68,000 data points. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support (HD35.03). *Custom LCD (code L) is optional. 【Features】 ■ Side Mini-USB port ■ Fixed downward temperature and humidity composite probe (temperature sensor NTC10KΩ) ■ Measurement range: -40 to +105°C ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 85% RH ■ Memory capacity: 68,000 data points *For more details, please download the PDF or feel free to contact us.

The "LR35WS/□TC" is an outdoor soil volumetric water content (VWC) and temperature data logger. The temperature measurement range is -40 to +60°C, and it supports soil volumetric water content from 0 to 60% VWC. It comes with a 3.6V lithium thionyl chloride battery (non-rechargeable). 【Features】 ■ M12 connector for connecting VWC + temperature probe HP3510 ■ Temperature measurement range: -40 to +60°C ■ Soil volumetric water content: 0 to 60% VWC ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 100% RH ■ Includes a 3.6V lithium thionyl chloride battery (non-rechargeable) *For more details, please download the PDF or feel free to contact us.

The "LR351N4r1ZTV" is an indoor temperature, humidity, and differential pressure data logger. It features a built-in fixed downward temperature and humidity composite probe and pressure sensor. It also includes calculation elements such as dew point temperature and wet bulb temperature. Three 3.6V AA alkaline batteries and a wall-mount support (HD35.03) are included. 【Features】 ■ Side Mini-USB port ■ Automatic zero-point differential pressure calibration for clean rooms ■ Built-in fixed downward temperature and humidity composite probe (temperature sensor NTC10KΩ) and pressure sensor ■ Pressure input port for φ5mm tube ■ Differential pressure measurement range: ±100Pa, resolution 0.01Pa ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 85% RH *For more details, please download the PDF or feel free to contact us.

The "LR351NB" is an indoor temperature, humidity, and CO2 data logger. It is equipped with computational elements such as dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, and water vapor partial pressure. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support HD35.03. 【Features】 ■ Side Mini-USB port ■ All sensors are built into the main unit, with the temperature sensor integrated into the RH module ■ Temperature measurement range: -40 to +105℃ ■ Humidity measurement range: 0 to 100% RH ■ CO2 measurement range: 0 to 5000 ppm ■ Humidity sensor operating temperature and humidity: -40 to +105℃ *For more details, please download the PDF or feel free to contact us.

The "LR3514bNB" is an indoor temperature, humidity, CO2, and atmospheric pressure data logger. All sensors are built into the main unit, with a temperature measurement range of -40 to +105°C and a humidity measurement range of 0 to 100% RH. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support (HD35.03). 【Features】 ■ Side Mini-USB port ■ All sensors built into the main unit ■ Temperature measurement range: -40 to +105°C ■ Humidity measurement range: 0 to 100% RH ■ Atmospheric pressure measurement range: 300 to 1100 hPa ■ CO2 measurement range: 0 to 5000 ppm *For more details, please download the PDF or feel free to contact us.

The "LR351NB□V" is an indoor temperature, humidity, CO2, and VOC (volatile organic compounds) data logger. All sensors are built into the main unit, with a temperature measurement range of -40 to +105°C and a humidity measurement range of 0 to 100% RH. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support HD35.03. 【Features】 ■ Side Mini-USB port ■ All sensors built into the main unit ■ Temperature measurement range: -40 to +105°C ■ Humidity measurement range: 0 to 100% RH ■ VOC measurement range: 1 to 500 (dimensionless index) ■ Humidity sensor operating temperature and humidity: -40 to +105°C *For more details, please download the PDF or feel free to contact us.

The "LR35H" is an indoor analog 3-channel multi-input data logger. It is equipped with a side Mini-USB port, allowing connections to transmitters with outputs of 0-20mA, 4-20mA, 0-1V, and 0-50mV. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable) and a wall-mount support HD35.03. 【Compatible with transmitters and sensors】 ■ Transmitters with outputs of 0-20mA, 4-20mA, 0-1V, 0-50mV ■ Pt100/Pt1000 sensors, K/J/T/N/E thermocouples ■ Sensors with potential-free contact output (1 sensor only) ■ Sensors with potentiometer output *For more details, please download the PDF or feel free to contact us.

The "LR35WNTV" is an outdoor temperature data logger. The temperature measurement range is -40 to +105°C, and the logger operates within a temperature and humidity range of -20 to +70°C / 0 to 100% RH. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable). 【Features】 ■ Fixed lower temperature and humidity combined probe (temperature sensor NTC 10KΩ) ■ Temperature measurement range: -40 to +105°C ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 100% RH ■ Memory capacity: 68,000 data points *For more details, please download the PDF or feel free to contact us.

The "LR35W1NTC" is an outdoor temperature and humidity data logger. It is equipped with a variety of calculation elements such as dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, and water vapor partial pressure. It comes with a 3.6V lithium thionyl chloride battery (non-rechargeable). 【Features】 ■ M12 connector for connecting the temperature and humidity composite probe HP3517WTC (temperature sensor NTC 10KΩ) ■ Temperature measurement range: -40 to +105℃ ■ Humidity measurement range: 0 to 100% RH ■ Humidity sensor operating temperature: -40 to +150℃ ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 100% RH *For more details, please download the PDF or feel free to contact us.

The "LR35W1NTV" is an outdoor temperature and humidity data logger. It is equipped with a variety of calculation elements such as dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, and water vapor partial pressure. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable). 【Features】 ■ Fixed downward temperature and humidity composite probe (temperature sensor NTC 10KΩ) for measuring ambient temperature and humidity ■ Temperature measurement range: -40 to +105℃ ■ Humidity measurement range: 0 to 100% RH ■ Humidity sensor operating temperature: -20 to +80℃ ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 85% RH *For more details, please download the PDF or feel free to contact us.

The "LR35WPTC" is an outdoor rain data logger equipped with an M12 connector for connecting a rain gauge. It supports calculation elements for rainfall rate and 24-hour rainfall, with operating conditions ranging from -20 to +70°C and 0 to 100% RH. A 3.6V thionyl chloride lithium battery is included, and custom LCD production is available as an option. 【Features】 ■ M12 connector for rain gauge connection ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 100% RH ■ Memory capacity: Min 36,000 / Max 68,000 data points ■ Calculation elements: Rainfall rate mm/h, 24-hour rainfall mm ■ Includes a 3.6V thionyl chloride lithium battery (non-rechargeable) *For more details, please download the PDF or feel free to contact us.

The "LR35WDPTC" is an outdoor liquid level and rainfall data logger. It is equipped with an M12 connector for rain gauge connection and a cable gland for water level sensor input, supporting a water level measurement range of 0 to 100 kPa (equivalent to a water column of 0 to 10 meters). It includes calculation elements for rainfall rate in mm/h and 24-hour rainfall in mm, and comes with a 3.6V thionyl chloride lithium battery (non-rechargeable). 【Features】 ■ M12 connector for rain gauge connection ■ Cable gland for water level sensor input ■ Water level measured by gauge pressure sensor ■ Water level measurement range: 0 to 100 kPa (equivalent to a water column of 0 to 10 meters) ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 100% RH ■ Calculation elements: rainfall rate in mm/h, 24-hour rainfall in mm *For more details, please download the PDF or feel free to contact us.

The "LR35WRTC" is an outdoor solar radiation data logger. The measurement range for solar radiation is 0 to 2000 W/m², and the logger operates within a temperature and humidity range of -20 to +70°C and 0 to 100% RH. It comes with a 3.6V thionyl chloride lithium battery (non-rechargeable), and a custom LCD is available as an option. 【Features】 ■ M12 connector for pyranometer connection ■ Solar radiation measurement range: 0 to 2000 W/m² ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 100% RH ■ Memory capacity: Min 42,000 / Max 68,000 data points ■ Calculation element: Daily solar radiation Wh/m² (Wh = watt-hours) ■ Includes a 3.6V thionyl chloride lithium battery (non-rechargeable) *For more details, please download the PDF or feel free to contact us.

The "LR35WPM" is an outdoor PM (particulate matter) data logger. The sensor measurement range is 0 to 1000 μg/m3, and the logger operates within a temperature and humidity range of -20 to +70°C / 0 to 95% RH. It is designed for an external power supply of DC 7 to 30V without a battery, and a custom LCD is available as an option. 【Features】 ■ For measuring PM1.0, PM2.5, and PM10 ■ Sensor measurement range: 0 to 1000 μg/m3 ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 95% RH ■ Memory capacity: Min 42,000 / Max 68,000 data points ■ Power supply: DC 7 to 30V (external power, no battery) *For more details, please download the PDF or feel free to contact us.

The "LR35WPMB" is an outdoor PM (particulate matter) and CO2 data logger. The PM measurement range is 0 to 1000 μg/m3, and the CO2 measurement range is 0 to 5000 ppm. It operates on an external power supply of DC 7 to 30V (no battery) and a custom LCD is available as an option. 【Features】 ■ For measuring PM1.0, PM2.5, and PM10 ■ PM measurement range: 0 to 1000 μg/m3 ■ CO2 measurement range: 0 to 5000 ppm ■ Logger operating temperature and humidity: -20 to +70℃ / 0 to 95% RH ■ Memory capacity: Min 42,000 / Max 68,000 data ■ Power supply: DC 7 to 30V (external power, no battery) *For more details, please download the PDF or feel free to contact us.

The "LR35WH" is an outdoor analog 4-channel multi-input data logger. It features a side Mini-USB port, allowing connection to transmitters with outputs of 0-20mA, 4-20mA, 0-1V, and 0-50mV. Included is a 3.6V thionyl chloride lithium battery (non-rechargeable), and a custom LCD is available as an option. 【Transmitter and sensor connections are possible】 ■ Transmitters with outputs of 0-20mA, 4-20mA, 0-1V, 0-50mV ■ Pt100/Pt1000 sensors, K/J/T/N/E thermocouples ■ Sensors with voltage-free contact output (1 sensor only) ■ Sensors with potentiometer output *For more details, please download the PDF or feel free to contact us.

The "LR35W-MB" is an outdoor RS485 Modbus-RTU input data logger. It allows for the connection of tipping bucket rain gauges via a voltage-free contact input, and the use of a proprietary protocol (instead of the Modbus-RTU protocol) enables the connection of Delta Ohm wind direction and speed meter HD2003. It is equipped with a switching power supply output for powering external sensors, with a supply voltage of DC 7-30V (external power, no batteries). 【Features】 ■ Capable of connecting multiple sensors with RS485 Modbus-RTU output within a wireless network ■ Allows for the connection of tipping bucket rain gauges via voltage-free contact input ■ Enables the connection of Delta Ohm wind direction and speed meter through the use of a proprietary protocol ■ Switching power supply output for powering external sensors (power supplied only during sensor measurement) ■ Logger operating temperature and humidity: -20 to +70°C / 0 to 100% RH ■ Supply voltage: DC 7-30V (external power, no batteries) *For more details, please download the PDF or feel free to contact us.