- Details
- Category: Thermometers

The SDL200 saves data to an SD card in Excel format. 4-channel datalogging with six thermocouple types (J, K, E, T, R, and S) and 2-channel datalogging with RTD (Pt100Ohm) probes. Readings are displayed as [T1, T2, T3, T4] or differential [T1-T2]. Offset adjustment is used for the zero function to provide relative measurements. Stores 99 manual readings and 20M readings on a 2GB SD card. Readings are recorded with an accurate date and time stamp. The sample rate can be set by the user between 1 and 3600 seconds. Minimum/Maximum, Data Hold, and Auto Power Off. Comes includes 6 AA batteries, four general-purpose Type K bead wire temperature probes, an SD card, and a protective carrying bag.
Memory | 20M data records using a 2G SD card |
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Temperature (RTD) Basic Accuracy | -327 to 1562 °F (-200 to 850 °C) |
Temperature (RTD) Max Resolution | ±0.4% of reading (+1.8°F/+1°C) |
Temperature (Type C) | 0.1°/1° |
Temperature (Type E) Basic Accuracy | -58 to 1652°F (-50 to 900°C) |
Temperature (Type E) Max Resolution | ±0.4% of reading (+1.8 °F/+1 °C) |
Temperature (Type J) | 0.1°/1° |
Temperature (Type J) Basic Accuracy | -148 to 2102°F (-100 to 1150°C) |
Temperature (Type J) Max Resolution | ±0.4% of reading (+1.8 °F/+1 °C) |
Temperature (Type K) Basic Accuracy | 0.1°/1° |
Temperature (Type K) Max Resolution | -148 to 2372°F (-100 to 1300°C) |
Temperature (Type N) | ±0.4% of reading (+1.8 °F/+1 °C) |
Temperature (Type N) Basic Accuracy | 0.1°/1° |
Temperature (Type R) Max Resolution | 32 to 3092°F (0 to 1700°C) |
Temperature (Type S) | ±0.5% of reading (+2 °F/+1 °C) |
Temperature (Type S) Basic Accuracy | 0.1°/1° |
Temperature (Type S) Max Resolution | 32 to 2732°F (0 to 1500°C) |
Temperature (Type T) | ±0.5% of reading (+2 °F/+1 °C) |
Temperature (Type T) Basic Accuracy | 0.1°/1° |
Temperature (Type T) Max Resolution | -58 to 752°F (-50 to 400°C) |
Temperature [IR] | ±0.4% of reading (+1.8 °F/+1 °C) |
Temperature [Type K] | 0.1°/1° |
Certifications | CE |
Dimensions | 7.2 × 2.9 × 1.9" (182 × 73 × 47.5mm) |
Power | 6 × AA (1.5V) batteries |
Warranty | 3 years |
Weight | 17.6oz (500g) |
- Details
- Category: Thermometers

The SD200 is a three-channel temperature data logger. Data is saved on an SD card in Excel format. Data sample rate can be set to 5, 10, 30, 60, 120, 300, 600 seconds, or automatic. Comes with six AAA batteries, a 2GB SD card, a universal AC adaptor, three Type-K bead wire temperature probes, and a mounting bracket. .
Memory | 2,000K data using 2G SD memory card |
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Temperature (Type K) Max Resolution | -58 to 2372°F (-100 to 1300°C) |
Temperature (Type N) | ±(0.5% + 1°F/0.5°C) |
Temperature (Type N) Basic Accuracy | 0.1 °F/ °C |
Certifications | CE |
Dimensions | 5.2 × 3.1 × 1.3" (132 × 80 × 32mm) |
Power | 6 × AAA (1.5V) batteries |
Warranty | 2 years |
Weight | 9.9oz (282g) |
- Details
- Category: Thermometers

The Extech RH250W is a tiny Hygro-Thermometer with Bluetooth® connectivity, allowing construction and maintenance professionals to see and share relative humidity and temperature data from a mobile device using the free ExView app. Users can receive deeper insights into the health of their equipment and buildings by capturing data, displaying trends, setting visual and auditory alarms, and sending reports.
Relative Humidity | 0 to 100% RH |
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Relative Humidity Basic Accuracy | ±5% RH |
Relative Humidity Max Resolution | 0.1% RH |
Response Time | 1 sec |
Sampling Rate | 1s |
Temperature (Air) | 14 to 140°F (-10 to 60°C) |
Temperature (Air) Basic Accuracy | ±2.0°F (±1.0°C) |
Temperature (Air) Max Resolution | 0.2°F (0.1°C) |
Wireless Connectivity | Bluetooth® (via ExView iOS/Android mobile app) |
Wireless Transmission Range | up to 90 m line of sight |
Certifications | CE, FCC, UKCA |
Dimensions | 5.9 × 2.1 × 1.1 in (150 × 53 × 28 mm) |
Operating Conditions | 32 to 104°F (0 to 40°C),≤80% RH |
Power | 3 × AAA (1.5V) batteries |
Warranty | 2 years |
Weight | 2.8 oz (80.5 g) |
- Details
- Category: Thermometers

The IR400 is a compact thermometer that can measure temperatures up to 630°F (332°C) and includes a built-in laser pointer to help identify target areas and enhance aim. Backlighting lights the display, making it easier to take measurements at night or in low-light environments. The fixed 0.95 emissivity covers 90% of surface uses. Complete with a 9-volt battery and case.
Distance to Target Ratio | 8:1 |
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Emissivity | 0.95, fixed |
Targeting | single laser |
Temperature (IR) Basic Accuracy | ±7.5°F(4°C) at -4°F to 20°F (-20°C to -7°C) ±(2% of reading +4°F(2°C) at 20°F to 630°F (-7°C to -343°C) |
Temperature (IR) Max Resolution | ±2% of reading +4 °F/2 °C |
Certifications | CE |
Dimensions | 3.2 × 1.6 × 6.3" (82 × 41.5 × 160mm) |
Power | 1 × 9V battery |
Warranty | 2 years |
Weight | 6.3oz (180g) |