Join the club
Get exclusive deals and early access to new products.
(Previously known as the Gravity Analog Isolator)
The Surveyor™ Analog Isolator is designed to work exclusively with our Surveyor line of low-cost embedded meters. These isolators remove all electrical interference coming from other probes or pumps in the same water you are testing. It converts the analog output from a Surveyor pH, Surveyor ORP, or Surveyor D.O. meter to both, a PWM and a voltage signal.
The PWM signal can then be easily converted back to a noise-free reading. Because this isolator uses PWM, it can be connected to a micro-controller that does not have an ADC.
The voltage signal converts the sensor value into 0 – 3 Volts, good for a micro-controller that does have an ADC
*A Raspberry Pi cannot accurately read PWM or analog voltage without a 3rd party hat.
| Data output | 10.6 KHz PWM |
| 0-3 Volts | |
| Voltage input | 3.0V − 5.0V |
| Connector | Header pins |
| Current consumption | 5V – 23 mA 3.3V – 15.7 mA |
| Carrier Board dimensions | 42mm x 32mm (2.2″ x 1.2″) |
| Weight | 13 grams |
| The Surveyor™ Analog Isolator comes with (4) standoffs and screws |