tCheck is a device that allows you to measure the strength of your infusions. Using just a few drops of butter, coconut oil, olive oil, or alcohol, you can accurately measure the strength of your infusion in less than 45 seconds.

  • Durable aluminum housing
  • Ultra Violet LED based spectrometer
  • Reusable cuvette (sample tray)
  • Wi-Fi enabled firmware updates
  • 2.8” TFT LCD Touch Screen
  • Built-in rechargeable lithium-ion battery
  • USB rechargeable
  • Tests butter, coconut oil, olive oil, and alcohol based tinctures
  • FCC Certified, UL Listed, CE Marked

tCheck is back in stock

Get tCheck with an estimated 5-10 days shipping

Quick Setup & Use

Quick Setup & Use

1. Place tCheck on a flat & level surface, turn on.

2. Separate tray and place drops of your infusion oil into the bottom tray well, then close.

3. Insert tray into tCheck & follow on-screen instructions to get CBV result in under 45 seconds.

4. Use the online calculator to get the amount of infused oil, needed in your recipe.

Save Time & Peace of Mind
tCheck Classic has customization features that allow you to have the perfect edible dose with every cooking session. Save your desired dose. Save peace of mind.
Freedom To Choose
Testing with tCheck Classic means accurately and consistently dosing as often as you want, where you want. It's compact size allows you test from the comfort of home or on the road.
Long Lasting Charge
Lasting seven days on a single charge, take tCheck Classic with you everywhere you go. Test oils. And have comfort in the infusions you purchase.

What's Included

tCheck Classic
USB Charging Cable
User Manual
Testing Tray & Stir Stick



Micro USB 2.0 cable (AC wall charger not included) Cable works with any USB charger. Full charge in under 6 hours.

Measurement Range

Olive Oil: 0 ~ 15 mg/ml
Butter: 0 ~ 10 mg/ml
Coconut Oil: 0 ~ 10 mg/ml
Alcohol Based Tinctures: 0 ~ 8 mg/ml

Optimal Temperature

50 ~ 100° F
(10 ~ 38° C)


+/- 10%

Bundle Deals

Bundle Deals

Working with other edible companies, we want to bring you the best possible infusion experience. Get a bundle deal for the most bang for your buck
See Bundles

Frequently Asked Questions

TCheck is capable of testing infusions that are made with coconut oil, clarified butter (ghee), olive oil, and alcohol. We are working on getting other bases, such as honey and glycerin on the device. These updates will be available by updating the firmware via WiFi.
With everything but MCT oil, the sample should be in liquid form. If the sample is cold, and solidified, it will not work. Do not pour boiling butter or oil in the tray, as it will damage it. If the butter or oil is warm enough to be in liquid form, that is good enough. Once the sample cools and solidifies though, it will give different results, as the light can not read the sample accurately.
No, tCheck only works with liquids. Plant matter in the sample tray, even small bits of it, will affect the test results. Liquid samples should be strained for all plant matter before testing.
Nope! The device does not hurt the sample, and you can still consume the small amount in the tray after testing if you wish.
Any number you get as a result is a measurement of all the herbal compounds present in the sample. For example, 4.5mg/ml means in 1 ml of the liquid, there are 4.5 mg of herbal compounds. You can easily view this in terms of teaspoon, tablespoon or percentage if you like, by using the drop down menu on the results screen. Our online calculator can also help you figure out how much or little to use in a recipe to get the desired strength per serving.
This question of dosage, or how many mg is the right amount for you, is something only you can answer, since every individual's body is different. Some are far more sensitive than others in this regard. Fortunately, with tCheck, you will finally know how many mg you are consuming. You'll have a better idea of what the right amount is for yourself, since you no longer have to guess how much you have consumed. When in doubt, start with a smaller dose, and gradually increase it until you know what is right for you.
The device works because herbal compounds absorb UV light and because we know the thickness of the liquid the light passes through. By measuring the amount of light that gets absorbed, we can calculate the concentration of the infusion. Bubbles create a pocket that allows light to pass through, unhindered. Consequently, this results in a lower, inaccurate reading. Essentially, the more light that passes through, the lower the potency.

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Satisfaction Guaranteed

tCheck was built with you in mind. If you are not fully satisfied for any reason, just return your device within 45 days for a full refund of purchase price. See Terms
Taxes, shipping and discount codes are added at checkout.