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Blue Bullet INFRARED THERMOMETER COMPARISON CHART
Model
200/220
400/420
400L/U
Pro 630
Pro 632
MSRP
$34.99/$39.99
discontinued/$49.99
$79.99/$79.99
$39.99
$44.99
Measurement Range
-33 to 110°C ('-27 to 230°F)
-33 to 220°C ('-27 to 428°F)
-33 to 220°C ('-27 to 428°F)
-20 to 320°C ('-4 to 605°F)
-20 ~ 500°C ('-4 ~ 930°F)
Operating Range
0 to 50°C (32 to 122°F)
0 to 50°C (32 to 122°F)
0 to 50°C (32 to 122°F)
0 ~ 50°C (32 ~ 122°F) 10 ~ 90% RH
0 ~ 50°C (32 ~ 122°F) 10 ~ 90% RH
Accuracy
± 2.5% 100 to 230°F

± 1° 10 to 100°F
± 2.5% 100 to 428°F

± 1° 10 to 100°F
± 2.5% 100 to 428°F

± 1° 10 to 100°F
± 2% of reading or ± 2°C whichever is greater

±2% of reading or ±2℃ whichever is greater
± 2.0°C (±3°F) from '-20 ~ 100°C ('-4 ~ 212°F)

± 2% from 100 ~ 500°C (212 ~ 930°F)
Resolution
0.2°C (0.5°F)
0.2°C (0.5°F)
0.2°C (0.5°F)
0.5°C (0.5°F)
0.2° C (0.2°F)
Response Time
1 Second
1 Second
1 Second
500 ms
500 ms
Distance to Spot Ratio
1:1
1:1
1:1
8:1
8:1
Emissivity
0.95 Fixed
0.95 Fixed
0.95 Fixed
Fixed at 0.95
Fixed at 0.95
Update Frequency
1.4 Hz
1.4 Hz
1.4 Hz
n/a
n/a
Dimensions
13 x 128 mm
13 x 128 mm
13 x 128 mm
150 x 133 x 45 mm
150 x 133 x 45 mm
Wave Length
5 um to 14 um
5 um to 14 um
5 um to 14 um
5 um to 14 um
5 um to 14 um
Weight
45.0 g
45.0 g
60.0 g
135 g
135 g
Battery
2 LR44 Batteries
2 LR44 Batteries
2 LR44 Batteries; 1 AAA Battery
9 V
9 V
Thermopile
n/a
n/a
n/a
5 ~ 14µm
5 ~ 14µm
Repeatability
n/a
n/a
n/a
± 1°C (± 2°F)
± 1°C (± 2°F)
Auto Power Off
n/a
n/a
n/a
Automatically after approx. 6 sec.
Automatically after approx. 6 sec.
Storage Temp
n/a
n/a
n/a
-10 ~ 60°C (14 ~ 140°F)
-10 ~ 60°C (14 ~ 140°F)
°C/F° Switchable
n/a
n/a
n/a
Yes
Yes
Backlight
n/a
n/a
n/a
Yes
Yes

 

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