# Extech TM26 Waterproof Temperature Indicator - NSF Certified

# Extech TM26 Waterproof Temperature Indicator - NSF Certified

## Key Features At A Glance

-   NSF certified for measuring food in liquids, pastes, and semi-solid applications
-   Temperature measurement range from -40°F to 392°F (-40°C to 200°C)
-   4.1 in (105 mm) stainless steel penetration probe with 5 ft (1.5 m) cable
-   ±1.8°F/1°C basic accuracy with 0.1° maximum resolution
-   Programmable High/Low set points with audible and visual alarm alerts
-   Min/Max reading capture with reset function, plus Data Hold to freeze the current reading
-   Waterproof housing and sensor designed to meet IP65
-   Magnetic back for metal-surface mounting, plus included foot stand for desktop or wall mount use

The Extech TM26 is a waterproof temperature indicator with a long stainless steel penetration probe, designed for measuring temperature in liquids, pastes, and semi-solid food. The instrument carries NSF certification for food measurement and combines a panel-style indicator housing with a probe on a 5 ft cable, allowing the display to remain visible while the probe is inserted into the medium being measured.

Listed applications for the TM26 include the food industry, agriculture, refrigerators, laboratories, and warehouses. The combination of NSF certification, the long penetration probe, and the IP65 waterproof housing reflects this application set — environments where the indicator may be exposed to wash-down, moisture, or direct contact with food product, and where the temperature being monitored is inside a liquid, paste, or semi-solid medium rather than on a surface.

## Brand Heritage

Extech Instruments is part of the Teledyne FLIR family. FLIR Systems acquired Extech, and Teledyne Technologies subsequently acquired FLIR in 2021. The Extech brand has been maintained for industrial test, environmental measurement, and food-industry instruments.

## Accessories Supplied

-   Magnetic back
-   Foot stand
-   Temperature sensor (stainless steel penetration probe)
-   CR2032 3V button battery

## Product Core & Specifications

Specification

Value

Temperature Range

\-40°F to 392°F (-40°C to 200°C)

Basic Accuracy

±1.8°F / ±1°C

Max Resolution

0.1°

Probe Type

Stainless steel penetration probe

Probe Length

4.1 in. (105 mm)

Probe Cable Length

5 ft (1.5 m)

Display

LCD with Temperature reading, alarm indicator, and high/low alarm icons

Alarms

Audible and visual alarm alerts when temperature is higher or lower than user-programmed High/Low set points

Functions

Min/Max reading with reset; Data Hold (freezes current reading); Low battery indication

Mounting

Magnetic back, removable foot stand, or wall mount

Ingress Protection

Waterproof housing and sensor designed to meet IP65

Certifications

NSF certified, CE

Power

CR2032 3V button battery (included)

Dimensions

3.4 L x 2.2 H x 1.2 in. D (86 L x 57 H x 30 mm D)

Weight

3.2 oz (90 g)

UPC Code

793950420126

**Important:** Maximum measurement range: -40°F to 392°F (-40°C to 200°C). Housing and sensor designed to meet IP65.

**Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.**

## Details

- **Price:** 41.99 USD
- **Vendor:** Extech
- **Type:** Data Log
- **Tags:** Extech, Manufacturers, Meters & DAQ, product_manual_group_2, Product_new, Thermometer

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 41.99 USD | In stock |

## Images

- TM26 Extech Thermometer

---

> Source: [ValueTronics](https://valuetronics.com/products/tm26-extech-thermometer-new)
> Updated: 2026-05-30