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Hanna Instruments Canada
Customer Support: (800) 842-6629

Checktemp®4 Fahrenheit Folding Thermometer – HI151-01

The HI151 Checktemp®4 is a pocket folding digital thermometer with stainless steel penetration probe. It offers an ergonomic design and delivers high accuracy measurements over a wide temperature range.

  • CAL Check™
  • Stainless steel probe
  • Ergonomic design


The folding Checktemp®4 provides practical temperature measurement for the food service industry. Special attention was given to the ergonomic form of Checktemp®4. This thermometer fits comfortably and securely in your hand while the LCD on the side of the handle remains easy to see and read. The fast-responding, fold-away probe is made of high-quality stainless steel and can penetrate semi-frozen and semi-solid foods such as meats, ice cream, and cheeses. The Checktemp®4 automatically turns on when the probe is folded open. When finished with measurements, simply wipe the probe clean and fold it away. Checktemp®4 automatically turns off once the probe is returned to its original position so you can safely carry it in your pocket.

Features at-a-glance

CAL Check

As you unfold the stainless-steel probe, the Checktemp®4 automatically turns on and immediately performs a calibration test. This unique Hanna feature provides the security of knowing you have accurate measurements. CAL Check™ also lets you know if your battery level is low or if your meter requires recalibration.

AISI 316 Stainless Steel Probe

The sharp-tipped penetration probe is composed of stainless steel, providing fast and accurate temperature measurements of a wide variety of samples.

Enhanced Battery Life

The Checktemp®4 uses AA batteries and offers an exceptional 25, 000 hours of continuous use.

Auto Shut-off

The battery life of the Checktemp®4 is preserved by this feature which automatically turns the meter off after 8 minutes of non-use.

Additional information

Weight 0.45 kg


Temperature Accuracy

±0.5°F ±1 digit (-4.0 to 194.0°F); ±1% F.S. ±1 digit (outside)

Temperature Range

-58.0 to 428°F


SKU HI151-01
Name Checktemp®4 Fahrenheit Folding Thermometer – HI151-01
Temperature Range -58.0 to 428°F
Temperature Resolution 0.1°F (-58.0 to 199.9°F); 1°F (200 to 428°F)
Temperature Accuracy ±0.5°F ±1 digit (-4.0 to 194.0°F); ±1% F.S. ±1 digit (outside)
Unit of Measurement 49
Thermohygrometer Probe stainless steel probe with penetration tip; 117 x dia 3.5 mm (4.6 x dia 0.14”)
Automatic Shut-Off auto-off after 8 minutes of non-use
Battery Type/Life 1.5V AA / approx. 25,000 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 165 x 50 x 20 mm (6.5 x 2.0 x 0.8”)
Weight 100 g (3.5 oz.)

Ordering Info

HI151-01 (Checktemp 4) is supplied complete with battery and instructions


Checktemp®4 Fahrenheit Folding Thermometer – HI151-01