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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
2 Channel Handheld K Type Thermocouple Datalogger USB output HH305-306 HH305-306
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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.

Rated 2 out of 5 by 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 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 from Good purchase Good meter and good performance, low price against competitors.
Date published: 2022-08-11
Rated 2 out of 5 by 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
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