Accurate, dependable sampling for surface water, stormwater, and wastewater.
The YSI ProSample line of portable auto samplers is engineered for precision and durability in environmental monitoring. Each unit features YSI’s proprietary peristaltic pump, ensuring high volume accuracy and reliable performance in demanding applications.
Multiple trigger options: Time, analog signal, digital pulse, or SDI-12 device (P-12 and PM-12 models).
Sampling types:
Composite sampling (all models)
Discrete sampling (ProSample P and P-12 models)
ProSample P – Full-size portable sampler
ProSample P-12 – Full-size with SDI-12 connectivity
ProSample PM – Compact, mini portable sampler
ProSample PM-12 – Compact with SDI-12 connectivity
Each ProSample system ships with:
5 m suction hose with screw connection and sinker weight
10 L PE container (PM and PM-12 only)
Battery and USB cable
Two peristaltic pump tubes
Printed ProSample Getting Started Guide
High Accuracy – Proprietary peristaltic pump delivers consistent sample volumes
Compact & Portable – Lightweight, insulated housing for easy transport and extended ice retention
Low Maintenance – Spring-loaded roller bearings extend pump tube life; quick tube replacement
User-Friendly Operation – Straightforward programming and calibration with storage for 12 custom programs
Versatile Installations – ProSample PM and PM-12 fit into confined monitoring locations
Analog: 0/4–20 mV
Digital
SDI-12 (ProSample P-12 and PM-12 only
YSIConnect PC software provides full control over your ProSample, including:
Remote sampler operation
Data download and management
Firmware updates
For detailed specifications, refer to the ProSample Ordering Guide or contact our team to configure the right system for your application.
| Accuracy | Single sample volume accuracy: +/-5% or +/-5 mL (whichever is greater) within the sample volume range 20-10000 mL |
|---|---|
| Bottles | ProSample P and ProSample P-12 - Discrete or composite sampling
PE: 24 x 1 L, 8 x 2L, 4 x 4 L, 1 x 26 L Glass: 24 x 350 mL, 12 x 950 mL, 8 x 2L ProSample PM and PM-12 - Composite sampling only PE: 1 x 10L (included with each PM and PM-12) |
| Certification | CE, ISO 5667-10, EN 16479 |
| Dimensions | P and P-12 = 50 x 74 cm
PM and PM-12 = 40 x 60.5 cm |
| Display | Backlit graphic display; 6.5 cm width x 3.2 cm height |
| Fluid Delivery Speed | >0.61 m/s at suction height up to 7 m with 10 mm ID suction hose |
| Inputs | Analog 0/4-20 mA, Digital, SDI-12 (P-12 and PM-12 only) |
| LED | Indicates if a program is running, an error has occurred, or low battery |
| Material | PE (polyethylene); double-walled and insulated for longer ice retention |
| Measurement Range | Single sample volume range: 1-10000 mL |
| Memory | Up to 3000 entries; non-volatile data memory for up to 5 years; Stores sampling and error data, bottle changes, messages, external signals |
| Operating Temperature | 0 to 50 °C |
| Power | 12 V/ 7.2 Ah lead storage battery (maintenance free, leak proof) 115V or 230V operation by means of battery charger |
| Programming | 12 user-defined programs |
| Pump Type | Peristaltic |
| Sample Temperature | 0 to 40 °C |
| Software | YSIConnect PC software for controlling the sampler and downloading data (not required) |
| Suction Height | Maximum 8.5 m (27.9 ft) at 1 atm with 10 mm ID suction hose |
| Suction Hose | Maximum allowable length is 30 meters
ID of YSI suction hoses is 10 mm |
| USB | Mini-B USB for PC connection |
| Warranty | 1 year on all ProSample models |
| Weight | P and P-12 = 15 kg, PM and PM-12 = 9 kg |