HIOKI Wireless Voltage / Temp Logger LR8515

Easy, Wireless Collection of a Variety of Data Types, including Voltage Input and Thermocouple Types K and T

Hioki Memory HiLoggers are high-speed data loggers for recording multiple channels of voltage, temperature, resistance or humidity signals, some models providing complete isolation between channels and strong noise resistance. The Hioki LR8515 Wireless Voltage/Temperature Logger provides easy, wireless collection of a variety of data types, including voltage input and thermocouple types K and T, all in a single device.

Wireless Voltage / Temp Logger

Model:

LR8515

Maker:

HIOKI E.E. CORPORATION

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Features

Converts minute voltages of pyranometers or heat flow sensors to battery voltage to temperature
Compact, two-channel model fits where other devices don’t
Download measurement data to a tablet or computer with Bluetooth® wireless technology
Three-way power (AC adapter, AA alkaline batteries, or external 5 to 13.5 V power supply)
Store 500,000 data points per channel

Specifications

Accuracy guaranteed for 1 year

Functionality	[Used as standalone product (Data collected manually)] Windows PC or Windows tablet (CD-R with software included) Android smartphone or Android tablet terminal (Software can be downloaded free of charge from Google Play.) *Communication range varies with the performance of the computer or tablet (up to a line-of-sight distance of roughly 30 m) [Used as logging module (Real-time measurement)] Device can be used as an LR8410 logging module to record and display data in real time and to control up to 7 units, Communication distance: 30 m
Number of channels	2 ch (isolated; select voltage of thermocouple for each channel), Input terminals: M3 screw type terminal block
Measurement items	Voltage / Thermocouple (K, T)
Maximum input voltage	±50 V DC, Max. inter-channel voltage 60 V DC
Measurement range	[Voltage] ±50 mV to ±50 V, Max. resolution 0.01 mV [Thermocouple] -200 ˚C to 999.9 ˚C, Thermocouples (K, T), Max. resolution 0.1 ˚C
Measurement accuracy	[Voltage] ±0.05 mV (50 mV range) [Thermocouple] ±0.8 ˚C (Thermocouple K -100 ˚C to 999.9 ˚C) Reference junction compensation: Switchable between internal and external Reference junction compensation accuracy: ±0.5 ˚C (When using internal compensation, add to thermocouple measurement accuracy.) *Temperature characteristics: Add (measurement accuracy × 0.1) / ˚C to measurement accuracy.
Display items	Measurement value, date, time, number of recorded data, maximum value, minimum value, and average value
Functions	Alarm, Scaling, Recording operation hold function, Erroneous operation prevention, Comment recording function, Power saving function, Authentication function, Free run
Recording	[Capacity] 500,000 data items for each channel [Mode] Instantaneous value [Interval] 0.1 to 30 sec, 1 to 60 min, 16 selections
Power source	AC Adapter Z2003 (AC100 V to 240 V, 50 Hz/60 Hz), AA alkaline batteries (LR6) ×2, External power DC5 V to 13.5 V (can also be supplied from USB bus power, with a conversion cable)
Continuous operating time ([Capacity] 500,000 data items for each channel) (23˚C)	2.5 months (Recording interval of 1 min, Bluetooth® OFF), 7 days (Recording interval of 1 sec, Bluetooth® ON), 2 days (Recording interval of 0.1 sec, during real-time measurement with the LR8410)
Dimensions and mass	85 mm (3.35 in) W × 75 mm (2.95 in) H × 38 mm (1.50 in) D, 126 g (4.4 oz) (Not including the battery)
Included accessories	Measurement Guide ×1, Caution for Using Radio Waves ×1, AA alkaline batteries (LR6) ×2

Countries and regions where wireless operation is currently supported (LR8515)

Last update: March 2025

Countries and regions where wireless operation is currently supported	Australia, Austria, Belgium, Bulgaria, Canada, Chile, China, Colombia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Japan, Kenya, Latvia, Liechtenstein, Lithuania, Luxembourg, Macao, Malta, Myanmar, Netherlands, New Caledonia, New Zealand, Norway, Poland, Portugal, Romania, Saudi Arabia, Singapore, Slovakia, Slovenia, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey, United Kingdom, United States, Viet Nam
Note	Use of devices that emit radio radiation requires approval in the country of use. Thus, use of the instrument in a country or region where they have not been approved may be subject to penalty as a violation of law.

Countries and regions where wireless operation is currently supported

Australia, Austria, Belgium, Bulgaria, Canada, Chile, China,
Colombia, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Georgia, Germany, Greece, Hong Kong, Hungary,
Iceland, India, Indonesia, Ireland, Israel, Italy, Japan, Kenya,
Latvia, Liechtenstein, Lithuania, Luxembourg, Macao, Malta,
Myanmar, Netherlands, New Caledonia, New Zealand, Norway,
Poland, Portugal, Romania, Saudi Arabia, Singapore, Slovakia,
Slovenia, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey,
United Kingdom, United States, Viet Nam

Note

Use of devices that emit radio radiation requires approval in the country of use.
Thus, use of the instrument in a country or region where they have not been approved
may be subject to penalty as a violation of law.

Inquiry

Easy, Wireless Collection of a Variety of Data Types, including Voltage Input and Thermocouple Types K and T

Features

Specifications

Countries and regions where wireless operation is currently supported (LR8515)

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