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HH305-306
2 Channel Handheld K Type Thermocouple Datalogger USB output
Models In Stock
- Low Cost Type K Thermocouple Datalogger/Thermometers
- Dual Input
- Resolution 0.1°C, 0.1°F
- Triple Display
HH305-306
From
$
407.84
Models In Stock
Product Overview
- Additional Features 1 MIN/MAX/AVG/REL/HOLD Functions , Auto Power-Off
- Data Interface USB, RS232
- Display Type LCD
- Display Type Note 3 1/2 digit LCD
- Height 30 mm
- Input Protection Voltage 60Vdc/24Vrms
- Length 184 mm
- Measurement Type Temperature
- Number of Measurements 2
- Operating Temperature, Max 50 °C
- Operating Temperature, Min 0 °C
- Samples,Max 16000
- Series ID HH305-306
- Storage Temperature, Max 60 °C
- Storage Temperature, Min -20 °C
- Temperature Accuracy ± 1.0°C
- Temperature Measurement, Max 1370 °C
- Temperature Measurement, Min -200 °C
- Temperature Resolution ± 0.1 °C
- Temperature Resolution Note -200.0 to 200.0
- Temperature Sensor Type Thermocouple
- Weight 210 g
- Width 64 mm
Supported Applications
The Omega HH305/306 series comprises handheld digital thermometers and data loggers designed for use with Type K thermocouples. The unit features a dual-input configuration (T1 and T2) to measure temperature across industrial ranges, storing up to 16,000 records at programmed intervals as fast as once per second. It includes an RS232 interface and USB connectivity for bi-directional communication with a PC running Windows-based software for data display and saving.
Explicit warnings in the documentation state that these products are not designed for use in human applications.
Operating Conditions & Performance
The series measures temperature from -200°C to 1370°C (-328°F to 2498°F) with a resolution of 0.1°C or 0.1°F for readings between -200.0 and 200.0. Accuracy specifications vary by range:
- -200°C ~ 200°C: ±(0.2% reading + 1°C)
- 200°C ~ 400°C: ±(0.5% reading + 1°C)
- 400°C ~ 1370°C: ±(0.2% reading + 1°C)
- -328°F ~ -200°F: ±(0.5% reading + 2°F)
- -200°F ~ 200°F: ±(0.2% reading + 2°F)
- 200°F ~ 2498°F: ±(0.3% reading + 2°F)
The basic accuracy specification does not include the error of the probe; users must refer to the specific probe accuracy for additional details. The device operates in ambient temperatures from 0°C to 50°C (32°F to 122°F) with humidity limits of 0% to 80% RH at 0°C to 35°C and 0% to 60% RH at 35°C to 50°C. Storage temperature is rated from -20°C to 60°C (-4°F to 140°F). Input protection is limited to 60 Vdc or 24 Vrms AC maximum.
Configuration Options
The series supports the following configurable options and accessories:
- Sensors: Dual input spare Type K thermocouple (SC-GG-K-30-36); additional probes available separately.
- Pow er & Adapters: 9V battery included; AC adaptor (HH300-ADAPTER) and carrying case provided.
- Connectivity Cables: RS232 interface cable (HH300-CABLE); USB interface cable (HH300-CABLE-USB).
- Calibration: NIST-traceable calibration with points available as option CAL-3-HH.
The unit includes a 4-digit LCD display, data hold function, max/min tracking, clock setup, and recording interval configuration. It is supplied complete with two beaded wire Type K thermocouples (one per input), interface cables, software, carry case, battery, NIST certificate (no points), and operator's manual.
Key Product Differences
The primary model in this series is the HH306A, described as a Type K handheld 0.1°C/F thermometer with dual input capability. The device dimensions are 184 H x 64 W x 30 mm D (7.25" x 2.5" x 1.2") and weigh approximately 210 g (7.4 oz). Approvals include CE marking, ISO 9001 Certified, ISO 9002 Certified, and NIST certification.
PDFs & Manuals
Software & Drivers
Show Ratings & Reviews
Rated 2 out of
5
by
FrankM from
Would not recomend
Works fine on battery power, (uses 9v battery) kind-of works on external power. But if it is logging and you plug in external power it erases all your data. If you are on either mode and the power cable gets bumped or if there is a power flicker it erases all your data. Not cool!
Date published: 2018-10-23
Rated 5 out of
5
by
Senior from
Works like a champ
Works perfectly and provides the data, graphs, charts as needed without a lot of coding. Thank you!!
Date published: 2017-04-24
Rated 4 out of
5
by
Anonymous from
Good purchase
Good meter and good performance, low price against competitors.
Date published: 2022-08-11
Rated 2 out of
5
by
PBXN from
Software Not Compatible with USB C
This data logger has worked like a champ for 5 years. However I recently bought a new laptop (Windows 10) with USB C ports. The data logger is not detected and the data can not be uploaded. The data logger and software works with Windows 8.1 and USB 2.0 ports on my desktop computer. It also works with Windows 10 and USB 2.0 ports.
Date published: 2019-02-07
Can you tell me what the part number is for the RS323 - USB wire is for the HH306A? I would like to order COTS cables for spares.
The spare data transfer cable part number for USB is HH300-CABLE-USB
Date published: 2023-09-29
The software is listed as Windows XP, Vista, etc. Does this work with Windows 10?
Thank you for your inquiry. The latest listed software is Windows 10 compatible.
Date published: 2020-06-24
Everytime I power down my omega HH306 thermometer data logger and turned it back on, its date and time settings are loss and reset back to factory setting, please advise how to resolve this issue.
Thank you for your inquiry. If unit does not keep date, it is likely the internal battery has depleted. You can remove the back cover via 3 screws and replace the battery. CR2032 3Volt Lithium battery is in lower right hand corner of circuit board. Replace with same and this should solve problem.
Date published: 2021-07-22
What AC adapter can be used with this data logger
The HH300-ADAPTER is the is the power adapter for the HH306A.
Date published: 2023-06-12
We'll be heating up to 600C, and it looks like the included thermocouple (5TC-TT-K-30-36) only goes up to 268 C. Do you have another thermocouple you can recommend and is it possible to get the probe and unit NIST certified?
Yes there are probes with insulation capable of going to 600C and they can be calibrated with the meter as a system. This would require you sending your inquiry to the Temperature group at temp@omega.com.
Date published: 2023-04-06
When I plugged in the hh306a to my computer it said, driver is unavailable. How do I resolve this issue?
Thank you for your inquiry. We believe the best assistance would come from speaking to us directly at 888-826-6342 ask for the Temperature Department Mon. – Fri. (HOURS 8:30AM - 5:00PM EST).
Date published: 2025-08-29
What is the size of the thermocouple wire that is supplied with the data logger?
Thank you for your inquiry manon91. The length of the thermocouple wire is 1 m (40") and the wire gauge is 30 AWG.
Date published: 2022-04-12
Which is correct?: · 2 years ago Thank you for your inquiry. Updated software for HH306A is compatible with Windows XP, Vista, and 7 - 32 and 64 bit ONLY. · 3 years ago Thank you for your inquiry. The latest listed software is Windows 10 compatible.
The latest SW version good for OS10 with the HH306A is Version V45 and can be found at this location on Omega's - website https://software.omega.com/SoftwareList.html
Date published: 2023-03-10