- Details
- Category: Thermometers

The Extech 421502 Type K/J Input Thermometer features a dual display and customizable high and low audible alarms. It has a 0.05% accuracy, min/max/average readings, data hold, relative function, and differential temperature measurement for Type J, Type K, or both J and K. Includes two Type K bead temperature probes, a protective holster with stand, and a 9 V battery.
Temperature (Type J) Basic Accuracy | -328 to 1922 °F (-200 to 1050 °C) |
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Temperature (Type J) Max Resolution | ±(0.05% of reading +0.6 °F) |
Temperature (Type K) Basic Accuracy | 0.2 °F/0.1 °C |
Temperature (Type K) Max Resolution | -328 to 2498 °F (-200 to 1370 °C) |
Temperature (Type N) | ±(0.05% of reading +0.3 °C) |
Temperature (Type N) Basic Accuracy | 0.2 °F/0.1 °C |
Certifications | CE |
Dimensions | 7.6 × 3.6 × 2.1" (192 × 91 × 53mm) |
Power | 1 × 9V battery |
Warranty | 2 years |
Weight | 13oz (365g) |
- Details
- Category: Thermometers

Extech's Big Digit Thermometer displays indoor and outdoor temperatures concurrently, as well as a user-programmable High and Low alert for outdoor (external probe) temperature. Its wired exterior weatherproof probe, which includes a 9.6ft (3m) thin cable, can be easily inserted through windows, doors, or any other small aperture leading to the outdoors or inside a refrigerator/freezer or temperature-controlled areas/rooms. Internal memory stores minimum and maximum measurements throughout time. Thermometer comes with a built-in desktop stand and a wall mounting bracket.
Display | LCD, 1 in. (25mm) digit height |
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Range | Indoor (internal sensor): 14.0 to 140.0°F (‐10.0 to 60.0°C) Outdoor (external sensor): ‐58.0 to 158.0°F (‐50.0 to 70.0°C) |
Accuracy | ±1.8°F (1°C) from 32.0 to 122.0°F (0.0 to 50.0°C) ±3.6°F (2°C) ‐58.0 to 32.0°F (‐50.0 to 0.0°C) and 122.0 to 158.0°F (50.0 to 70.0°C) |
Battery | One (1) 'AAA' 1.5 V battery |
Cable | Outdoor temperature sensor cable length: 9.6 ft. (3m) |
Dimensions | 4.4 x 4.0 x 0.9” (112 x 102 x 22mm) |
Weight | 6.5 oz. (186g) |
- Details
- Category: Thermometers

401014 is a Big Digit Thermometer that displays both interior and outdoor temperatures. Its waterproof sensor for outdoor measuring is connected to a 9.6 ft. thin cable for easy installation. Internal memory stores minimum and maximum measurements throughout time. The thermometer comes with a built-in stand, an external temperature sensor, a AAA battery, and a wall mount bracket.
Range | Indoor: 14.0 to 140.0oF (-10.0 to 60.0oC) Outdoor: -58.0 to 158.0oF (-50.0 to 70.0oC) |
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Accuracy | ±1.8oF/1oC from 32 to 122oF (0 to 50oC) ±3.6oF/ 2oC from -58 to 32oF(-50 to 0oC) and 122 to 158oF (50 to 70oC) |
Battery | One (1) 'AAA' 1.5 V battery |
Cable | Outdoor temperature sensor cable length: Approx. 9' (3m) |
Dimensions | 3.9x4.25x0.75" (99x108x19mm) |
- Details
- Category: Thermometers

The Extech 39272 is a Pocket Fold-up Thermometer with Adjustable Probe. It comprises a 11.4 cm (4.5 in) stainless steel probe with four detent locations (45, 90, 135, and 180 degrees). It monitors temperature from -50°C to 300°C (-58°F to 572°F) ± 1°C (± 1.8°F). It has data hold, min/max, and auto power off. Comes with a wrist band and a AAA battery.
Stem | 4.5" (114mm) stainless steel |
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Temperature (Contact) | -58 to 572°F (-50 to 300°C) |
Temperature (Contact) Basic Accuracy | ±1.8°F/±1°C (-22 to 482°F/-30 to 250°C) |
Temperature (Contact) Max Resolution | 0.1°/1° °C or °F |
Certifications | CE |
Dimensions | 6.1 × 2.0 × 0.8" (154 × 50 × 20mm) |
Display | Segment LCD |
Power | 1 × AAA (1.5V) battery |
Warranty | 2 years |
Weight | 2.5oz (71g) |