Need Help? Call us at 1-317-895-9005
or email us at

Proudly serving Aquarists since 1996

Hanna Instruments Checktemp Digital Thermometer

Item #
Hanna Instruments
Eligible for Free Shipping Program
In Stock

The Checktemp 1 Digital Thermometer - HI98509 is a high-accuracy thermometer with a 1 m (3.3’) flexible, silicone cable connecting the meter and the stainless steel probe.  This probe can also handle liquid, air and measurements in frozen materials. The probe incorporates an NTC thermistor sensor to measure the temperature.  The sharp-tip penetration probe easily lances semi-solid products such as fruits, vegetables, and cheeses, in case you're snacking while doing maintenance on your beloved aquarium!

    Thermistors make it possible to obtain extremely high accuracy in a very short period of time. The Hanna CAL Check™ feature has been incorporated into the Checktemp®1 for reliable and accurate measurements. CAL Check™ automatically runs a self-check upon startup and reports status back to the user; "-0-" for ok and "Err" if something is wrong.

    Checktemp®1 makes routine controls fast and simple for both incoming and outgoing goods. Constructed of AISI 316 stainless steel material, this probe is in compliance with food regulations, making it an ideal instrument for measuring temperature according to HACCP requirements.

    Features at-a-glance:

        ±0.2°C (±0.5°F) - Accuracy
        Most accurate temperature tester in the world
        CAL Check™ - Automatically verifies calibration at startup
        Silicone probe cable - 3.3’ silicone cable maintains flexibility and performance
        °C/°F Status – User selectable
        Large display with wide environmental temperature range and viewing angle.
        IP 65 water resistant protection
        HACCP Compatible - Use as a tool for control in HACCP analysis
        AISI 316 stainless steel penetration Probe
        Auto-Off (select from 8 min., 60 min., or turn the feature off)

    Range (°C)     -50.0 to 150.0°C
    Range (°F)     -58.0 to 302.0°F
    Resolution (°C)     0.1°C
    Resolution (°F)     0.1°F
    Accuracy (°C)     ±0.2 ºC (-30.0 to 120.0 ºC); ±0.3 ºC (outside: -50.0 to -30.0 ºC and 120.0 to 150.0 ºC)
    Accuracy (°F)     ±0.5 ºF (-22.0 to 199.9 ºF); ±1 ºF (outside: -58.0 to -22.0 ºF and 200 to 302 ºF)
    Probe     stainless steel probe with 1 m (3.3’) silicone cable; 97.3 x dia 3.5 mm (3.8 x dia 0.14’’)
    Power Supply     3 x 1.5V AAA Batteries
    Battery Life     Approximately 3 years of use
    Auto-off     auto-off after 8 minutes of non-use
    Environment     -20 to 50°C (-4 to 122°F); RH max 95%
    Dimensions     107 x 59 x 16.5 mm (4.2 x 2.3 x .65’’)
    Weight     130 g (4.6 oz.)
    Ordering Information     HI 98509 (Checktemp®1) is supplied with penetration probe, 3.3’ silicone cable, batteries and instructions.
    Warranty     1 year

Customer Reviews

You must be logged in to post a product review.

Hanna Instruments Checktemp and Checktemp 1 | Digital Thermometer

In today's video, we are taking a look at the Hanna Instruments Checktemp and Checktemp 1