HT Instruments HT3305 Infrared Thermometer 12:1 Optics -50 to +1000°C 1010770

Measure from -50°C up to +1000°C with a 12:1 distance-to-spot ratio and adjustable emissivity from 0.10 to 1.00. The HT3305 delivers fast readings in under 500 ms on a backlit LCD, with selectable °C/°F units and MAX/MIN/AVG/DIF functions.

Overview

The HT Instruments HT3305 is a non-contact infrared thermometer designed for a wide range of temperature measurement tasks. Its single-point laser helps aim accurately, while the backlit display ensures readability in various lighting conditions. The device offers high/low temperature alarms, data hold, and auto power off after 7 seconds of inactivity.

What stands out

• Wide temperature range: -50°C to +1000°C (-58°F to +1832°F)
• 12:1 optics for precise targeting at a distance
• Adjustable emissivity from 0.10 to 1.00 in 0.01 steps
• Fast response time under 500 ms
• Backlit LCD with MAX, MIN, AVG, and DIF functions
• High/low temperature alarm and data hold

Technical details

• Temperature range: -50°C to +1000°C (-58°F to +1832°F)
• Distance-to-spot ratio: 12:1
• Accuracy (0 to 500°C): ±1.5% or ±1.5°C (whichever is greater)
• Accuracy (-50 to 0°C): ±3°C
• Resolution: 0.1°C / 0.1°F
• Response time: < 500 ms
• Spectral response: 8-14 µm
• Emissivity: adjustable 0.10 to 1.00 (0.01 step)
• Display: backlit LCD
• Laser pointer: single point
• Functions: MAX, MIN, AVG, DIF, high/low alarm, data hold
• Auto power off: after 7 seconds of inactivity
• Power supply: 1x 9V battery (NEDA 1604A or IEC 6LR61)
• Operating temperature: 0 to 50°C (32 to 122°F)
• Operating humidity: 10 to 90% RH (non-condensing)

Our verdict

A versatile infrared thermometer with precise optics and adjustable emissivity, ideal for industrial and HVAC applications.