Gems Sensors RFO Series RotorFlow Electronic Flow Sensor for Liquid, 0.1 gal/min Min, 5 gal/min Max
- RS Stock No.:
- 907-3953
- Distrelec Article No.:
- 137-59-547
- Mfr. Part No.:
- 155421
- Brand:
- Gems Sensors
Subtotal (1 unit)*
£133.17
(exc. VAT)
£159.80
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 105 unit(s) ready to ship
- Plus 17 unit(s) ready to ship from another location
- Plus 164 unit(s) shipping from 29 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £133.17 |
*price indicative
- RS Stock No.:
- 907-3953
- Distrelec Article No.:
- 137-59-547
- Mfr. Part No.:
- 155421
- Brand:
- Gems Sensors
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Gems Sensors | |
| Media Monitored | Liquid | |
| Device Type | RotorFlow Electronic | |
| Minimum Flow Rate | 0.1 gal/min | |
| Maximum Flow Rate | 5 gal/min | |
| Supply Voltage | 4.5 → 24 V dc | |
| Pipe Diameter Range | 1/4 in | |
| Connection Type | 1/4 NPT Female | |
| Maximum Pressure | 6.9bar | |
| Material | Ploypropylene | |
| Maximum Media Temperature | +21°C | |
| Minimum Operating Temperature | -29°C | |
| Series | RFO | |
| Maximum Operating Temperature | +82°C | |
| Current Rating | 8 mA | |
Select all | ||
|---|---|---|
Brand Gems Sensors | ||
Media Monitored Liquid | ||
Device Type RotorFlow Electronic | ||
Minimum Flow Rate 0.1 gal/min | ||
Maximum Flow Rate 5 gal/min | ||
Supply Voltage 4.5 → 24 V dc | ||
Pipe Diameter Range 1/4 in | ||
Connection Type 1/4 NPT Female | ||
Maximum Pressure 6.9bar | ||
Material Ploypropylene | ||
Maximum Media Temperature +21°C | ||
Minimum Operating Temperature -29°C | ||
Series RFO | ||
Maximum Operating Temperature +82°C | ||
Current Rating 8 mA | ||
Gems Sensors Flow Sensor
The Gems Sensors RFO series rotor flow electronic sensor sense a liquid flow rate of 0.5gal/min to 5gal/min. The sensors popularised the rotor flow paddle wheel design by combining high visibility rotors with solid-state electronics packaged into a compact, panel mount housings. It provides an accurate flow rate output with an integral visual confirmation and an unprecedented price/ performance ratio. The output signal for RFO is an on/off the pulse of the DC voltage supplied to the unit, it is compatible with all digital logic families. The frequency of the output pulse is proportional to the flow rate and ranges from approximately 15Hz to 180Hz.
Features and Benefits
Pipe diameter range is 1/4in
Accurate flow rate indication with integral visual confirmation
It is available in polypropylene body material
The pulsed output is 4.5VDC to 24VDC
Connection type is 1/4 NPT female
Maximum operating pressure is 6.9bar
Maximum operating temperature is 80°C
Accurate flow rate indication with integral visual confirmation
It is available in polypropylene body material
The pulsed output is 4.5VDC to 24VDC
Connection type is 1/4 NPT female
Maximum operating pressure is 6.9bar
Maximum operating temperature is 80°C
Applications
Visual flow confirmation on heat exchangers
Plastic injection moulding equipment
Plastic injection moulding equipment
Certifications
CE certified
cRUus certified
cRUus certified
Related links
- Gems Sensors RFO Series RotorFlow Electronic Flow Sensor for Liquid 5 gal/min Max
- Gems Sensors RFS Series RotorFlow Electronic Flow Sensor for Liquid 5 gal/min Max
- Gems Sensors RFI Series RotorFlow Flow Indicator for Fluid 0.1 gal/min Min, 5 gal/min Max
- Gems Sensors RFS Series RotorFlow Electronic Flow Sensor for Liquid 300 gal/min Max
- Gems Sensors RFO Series RotorFlow Electronic Flow Sensor for Liquid 60 gal/min Max
- Gems Sensors RFO Series RotorFlow Electronic Flow Sensor for Liquid 20 gal/min Max
- Gems Sensors RFO Series RotorFlow Electronic Flow Sensor for Liquid 75 L/min Max
- Gems Sensors RFO Series RotorFlow Electronic Flow Sensor for Liquid 20 L/min Max