Voyager vs. Voyager 2
Voyager 2 measures all of the same things, with a few upgrades
Voyager 2 has a slightly different layout on the front face. The easiest way to tell them apart is that Voyager 2 has a square opening for the light sensor on the front face.
Voyager 2 Diagram

Voyager Diagram

| Voyager 2 | Voyager | |
| Battery Life | 20 hours | 8 hours |
| Internal Memory | 60,000 data readings | 30,000 data readings |
| Accelerometer |
+/-16 g 50 samples/sec 250 samples/sec (crash-mode) |
+/- 16g 50 samples/sec
|
| Barometric Pressure | 30 - 1100kPa | 30-180 kPA |
| Gyroscope | +/- 2000 deg/sec | +/- 2000 deg/sec |
| Humidity | 0-100%RH | 0-100%RH |
| Magnetometer | +/- 4900 uT | +/- 4800 uT |
| Light |
0.01 - 128,000 lux 220 - 1000 nm |
0.01 - 64,000 lux 400 - 1000nm |
| Altitude | -5,300 - 9,500 m | -5,300 - 9,500 m |
| Ambient Temperature | -40 - 85 C | -40 - 85 C |
| IR Rangefinder | 0.001 - 6m | 0.1 - 2.2m |
| Temperature Probe | -40 - 105 C | -40 - 105 C |