Sentry 653 Infrared Laser Thermometer is a non-contact measuring instrument. Features include a 4 digits backlit LCD, SCAN/HOLD/AUTO function and Auto Power Off (about 6 seconds). To measure a temperature, point the unit at the object, pull the measuring trigger and hold on till the temperature reading is obtained. Make sure the target area is larger then the unit's spot size. The single spot of laser is used for aiming.

Features:

• Emissivity adjustable from 0.1 to 1.00 in 0.01 steps
• Ultra low power consumption in shutdown mode
• Extended long time measuring reliability
• Laser sighting On/Off is switchable
• High DS ratio
• Backlit LCD display
• F or C selectable
• Electronic trigger lock
• Temperature data storage
• Audible alarms
• Case Included

Applications:

• Electrical troubleshooting
• Automotive repair and maintenance
• Air conditioner
• Science experiment
• Manufacturing processes of semiconductor technology
• Test terminals on circuits
• Perform HVAC energy audits

Spec Summary:

Distance/Spot Ratio:	12:1
Temperature Range:	-25 - 999°F (- 32 - 535ºC)
Accuracy: (assumes operation ambient temperature of 77°F):	±5° from -25 - 4°F ±3° from -4 - 212°F ±2%From 212 - 999°F
Thermopile:	5-14µm
Repeatability:	±2°F
Resolution:	0.1
Response Time:	500 ms
Operation Temp.:	32 -122°F, 10-90%RH
Auto Power Off:	Automatically after approx. 6sec.
Emissivity:	Adj. 0.1-1.0
°C/°F Switchable:	Yes
Backlight:	Yes
Laser Sight Switchable:	Yes
Max/Min/Avg:	Yes
Auto-measuring:	Yes
10 point memory:	Yes
Audio Alarm:	Yes
Battery Type:	9V, 006P, IEC6F22, NEDA1604
Dimensions:	6.69 x 5.23 x 1.77"
Weight:	6.59 oz.
Accessory: 9V Battery, Instruction manual, Carrying case

Note: This item doesn’t come with NIST certificate