Wey-TEK® Pro

For all jobs, big or small

Wey-TEK Pro

Product configurator

Gemini™ MxG5xx

Sensor version
Ionization chamber
Emmision current
Flange connection to vacuum chamber
Switching function
Electrical connection
Digital interface
Analog output signal
Your configuration
Gemini™ MxG5xx
Switching functions
Electrical Connection
FCC, 8-pin
Digital Interface
Measurement range
1.2 - 8.68 V
Personal information
Gemini™ MxG5xx
Gemini™ MAG500
Your configuration has been successfully sent!

Wey-TEK Pro is truly a do-it-all scale. A large, 275 lb. capacity platform allows you to easily weigh large tanks, while its 0.1 oz (3 g) display resolution and optional small charge adapter kit allows you to accurately weigh small, critical charges. Wey-TEK Pro features an intuitive wired handpiece with a bright, backlit display for ease of operation. 

For cordless use, simply download the free Wey-TEK Pro app on the App Store® or Google Play™.  Connect your mobile device via Bluetooth® to take advantage of several features:

  • Access the same functions as the handpiece
  • Set alarms with audible and visual notification
  • Save and share job logs including pictures and customer information
  • Over the air (OTA) remote upgrades

Optional small charge adapter kit

Accurately weigh small, critical charges with the small charge adapter kit (sold separately, PN 501-601-G1).

Wey-TEK Pro with optional small charge adapter kit
Wey-TEK Pro with optional small charge adapter kit

Designed for all tank sizes

Easily weigh large tanks with Wey-TEK Pro's 275 lb. (125 kg) capacity platform.



  • 275 lb. (125 kg) capacity platform designed to fit all tank sizes
  • Wired handpiece with bright, backlit LCD display
  • Bluetooth connectivity with free mobile app
  • 0.1 oz (3 g)  resolution for critical charging of all refrigerants including A3 flammables
  • Compatible with small charge adapter kit (PN 501-601-G1) for mounting A3 refrigerant bottles
  • OTA remote upgradeable


Includes Wey-TEK Pro
Magnetic handpiece strap
3 AA batteries installed
Carrying case
Weighing capacity 275 lb. (125 kg)
Accuracy 0.06% of reading +/- 3g (0.1 oz.)
Display resolution 0.1 oz (3 g)
Display type Color backlit LCD
Display units lb, oz, lb/oz, kg, g
Power source 3 AA batteries
Battery life Up to 150 hours (depending on dimming settings)
Weight (including batteries) 6.35 lb. (2880 g)
Platform dimensions (W x L x H) 11.0 x 11.0 x 1.5 in. (28.0 x 28.0 x 3.7 cm)
13.25 in. (33.5 cm) diagonal
Certifications A2L Certified
Warranty Two-year, over-the-counter
Download full specifications
Part Number
Accessories & Replacement Parts
501-202-G1Wey-TEK Pro
501-601-G1Small charger adapter kit
501-311-P1Magnetic handpiece strap
501-308-P1Replacement battery door
501-700-G1Carrying case

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