* This product is currently available for the US market only.
Troxler now offers a license-exempt option for soil quality control testing. The EGauge uses the proven nuclear technology for density measurements unlike other non-licensed density measurement devices. It provides accurate and reliable readings and it is easy to use. The EGauge Model 4590 complies with ASTM D8167.
Exempt from Licensing
Maintaining a radioactive materials license can be complicated and time consuming for owners of Specific Licensed gauges. In the United States, the EGauge is exempt from the radioactive materials license - no special training classes for operators, no TLD badges, no special shipping documents, and no reciprocity needed for use in other states.
Easy to Use
The operation of the Model 4590 is similar to that of the traditional Troxler nuclear density gauges so the experienced operator can use the gauge with little additional training.
Reliable and Repeatable Density Results
Data collected by multiple agencies shows excellent correlation between the EGauge and Troxler’s Model 3440 Density Gauge (R2 values ranged from 0.93 to 0.98). EGauge repeatability is also equal to that of the current density gauges as listed in the applicable ASTM specification (0. 3 lb/ft3 (4.8 kg/m3)).
Complete with Moisture Probe
The Troxler Model 6760 Moisture Probe is provided with each EGauge. The electromagnetic probe measures the moisture of the soil in the same prepared hole that is used for the density measurement. Bluetooth technology enables the probe to communicate the moisture data to the EGauge allowing the gauge to display complete results. The EGauge also accepts moisture data using the keypad if another method is used.
Additional Features and Options
Easy to Read Display – easy to read enlarged LCD screen with backlighting for viewing in low light conditions
Automatic Depth Mode – detects the source rod depth during each measurement
Data Storage and Output – stores up to 1000 test readings under multiple projects for later recall or downloading
Auto-Store Function – automatically stores sample data under the active project when enabled
USB Port – access for outputting stored data to a printer or removable USB storage drive
GPS – records GPS information with each measurement and has Wide Area Augmentation System (WAAS) capabilities for better accuracy
6 inch (15 mm) Depth
135 lb/ft3 (2163 kg/m3) Sample Density
Measurement Time = 2 min;
Background Time = 1 min
Repeatability (1-standard deviation)
0. 3 lb/ft3 (4.8 kg/m3)
Reproducibility (1-standard deviation)
0.5 lb/ft3 (8.0 kg/m3)
0 lb/ft3 (0 kg/m3)
EGauge Size (HxLxW)
24.6” x 15.4” x 9.2”
625mm x 391mm x 234mm
Moisture Probe Size (HxLxW)
8.2” x 13.6” x 5.6”
208mm x 346mm x 142mm
Case Dimensions (HxLxW)
31.3” x 20.4” x 15.5”
795mm x 518mm x 393mm
35 lbs (13.8 kgb)
83.0 lbs (37.6 kg)
32º to 122º F (0º to 50º C)
0º to 140º F (-18º to +60º C)
NiMH rechargeable batteries
5 AA alkaline batteries
12 V dc, 2A
Battery Recharge Time
3 hours maximum
(may be charged incrementally
without damaging the batteries)
Time Before Automatic Shutdown
5 hours of inactivity
* Reproducibility as measured is consistent with that stated in ASTM-D6938-10