The Purpl PRO is the flagship product offering by Purpl Scientific, and the first affordable, accurate, portable potency measurement device for the cannabis industry. It is a combination of a "laboratory bench" device the size of a hockey puck and a mobile App that allows users to run the system through a smartphone.
Purpl PRO utilizes near-infrared spectroscopy, which involves shining light on the sample and analyzing the light that is returned. In this part of the light spectrum (just beyond the red light that the human eye can see) molecules react to specific regions of the light to generate a "molecular fingerprint" that can be correlated with concentration. The Purpl PRO was calibrated against HPLC measurements from multiple state-certified testing laboratories.
The information below is for the Purpl PRO Bench.
| What is measured | THC and CBD With Optional +H2O Pack: Percent Water and Water Activity |
| Technology | NIR |
| Portability | Handheld |
| Dimensions | 3.125 x 3.125 x 1.125 inches |
| Weight | 0.33 lbs |
| Accuracy | THC +/- 1.89%; CBD +/- 0.96% |
| Minimum Detection Threshold | 2% THC, 2% CBD |
| Maximum Detection Threshold | 30% THC, 15% CBD |
| Sample Preparation | Grinding |
| Time / Test | 15 seconds |
| Internal Light Source | Tungsten Bulb (x2) |
| Bulb Lifetime | > 40,000 hours |
| Battery Life | ~ 300 measurements per charge ~ 1 week standby |
| Operating Temperature | 50 to 122 F (10 to 50 C) |
| Charging Temperature | 32 to 113 F (0 to 45 C) |
| Storage Temperature | 23 to 95 F (-5 to 35 C) |
| Maximum Relative Humidity | 80% for temperatures up to 88 F (31 C), decreasing linearly to 50% at 104 F (40 C) |
| Ingress Protection Rating | IP54 |
| Warranty | 1 year on Purpl PRO Bench; 30 days on Kit Accessories |