ATAGO® PAL‑88S Digital Propylene Glycol Refractometer
ATAGO® PAL‑88S Digital Propylene Glycol Refractometer
The ATAGO® PAL‑88S is a digital handheld refractometer designed for fast, accurate measurement of propylene glycol concentration and freezing point. The main scale displays propylene glycol (% V/V), while the secondary scale displays freezing point (°C). Automatic Temperature Compensation (ATC) ensures stable readings across a wide operating range, and the IP65 water‑resistant housing allows easy cleaning under running water. The PAL‑88S is ideal for HVAC, chiller systems, industrial cooling loops, and laboratory QA/QC workflows.
Key Features
- Dual‑scale measurement: propylene glycol concentration and freezing point “The main scale indicates the concentration… the secondary scale indicates the freezing point.”
- Automatic Temperature Compensation (ATC), 0–40°C
- Fast 3‑second measurement
- IP65 water‑resistant design (not submersible)
- NFC data output with 100‑record memory
- Backlit display (30‑second auto‑off)
- Requires only water for zero‑setting
- Compact 100 g handheld design
More About This Item
The PAL‑88S requires only ~0.3 mL of sample and provides immediate readings of propylene glycol concentration and freezing point. Measurements stabilize once the prism acclimates to sample temperature — “Wait for approximately 20 seconds… measurements will stabilize once the instrument acclimates.” The sapphire‑coated prism and spill‑resistant sample stage support routine industrial use. NFC output allows transfer of date/time, glycol %, freezing point, and prism temperature to compatible devices.
Technical Specifications
- Model: PAL‑88S
- Catalog Number: 4488
- Main Scale: Propylene glycol 0.0 to 90.0% (V/V)
- Secondary Scale: Freezing point 0 to –50°C
- Temperature Display: 10.0 to 40.0°C
- Resolution: Propylene glycol 0.2%; Freezing point 1°C; Temperature 0.1°C
- Accuracy: Propylene glycol ±0.4%; Freezing point ±1°C; Temperature ±1°C
- Automatic Temperature Compensation Range: 0 to 40°C
- Ambient Temperature Range: 10 to 40°C
- Sample Volume: At least 0.3 mL
- Measurement Time: Approx. 3 seconds
- Data Storage: 100 measurements
- Output: NFC Forum Type 4 Tag / ISO/IEC 14443 Type A
- Output Fields: Date/time, propylene glycol (mL/100 mL), freezing point (°C), prism temperature (°C)
- Power Supply: 2 × AAA alkaline batteries
- Battery Life: Approx. 11,000 measurements
- Protection Class: IP65 (water‑resistant)
- Dimensions: 55(W) × 31(D) × 109(H) mm
- Weight: 100 g
- Warranty: 1 year (extendable to 2 years with registration)
Included Accessories
- Main unit
- Instruction manual
- Calibration report
- 2 × AAA alkaline batteries
The PAL‑88S is ideal for HVAC technicians, chiller system maintenance, industrial cooling loops, and laboratory workflows requiring fast, repeatable propylene glycol concentration and freezing‑point measurements. Its water‑only zero‑setting, NFC data output, and rugged IP65 housing make it a dependable tool for daily use.
This item is NON-REFUNDABLE/NON-RETURNABLE once the order is placed. Please call if you are unsure this item will work for you
| Product Type: | Refractometer |
| Brand: | ATAGO |
| Product Line: | PAL |
| Class: | P.G. |
| Grade: | Digital Pocket Celsius |
| Range: | 0.0 - 90.0%, 0.0 to -50.0°C Propylene Glycol |
| Resolution: | 0.2% / 1.0°C |
| Accuracy: | ±0.4% / ±1.0°C |
| Overall Dimensions: | 5.5 x 3.1 x 10.9cm |
| Includes: | Protective storage case, 2 x AAA Batteries, serialized Calibration Report certificate, and owner's manual. |
Click Here to go to ATAGO web site for Instruction Manual pdf and/or Usage Instruction video.

